CN215771540U - Vehicle-mounted broadband multipurpose antenna - Google Patents

Abstract

The utility model provides a vehicle-mounted broadband multipurpose antenna, which comprises a tube body, a first radiation unit, a first combining unit, a second radiation unit, a second combining unit, a third radiation unit and a movable base, wherein the tube body is provided with a first end and a second end; the movable base is arranged on the automobile body; one end of the movable base, which is far away from the automobile body, is provided with a hollow pipe body; a first radiation unit, a first combining unit, a second radiation unit, a second combining unit and a third radiation unit are sequentially arranged in the tube body from top to bottom; the first radiation unit is electrically connected with the first combining unit, and the output end of the first combining unit is electrically connected with the movable base; the second radiation unit is electrically connected with the input end of the second combining unit, and the output end of the second combining unit is electrically connected with the movable base; the third radiation unit is electrically connected with the movable base. By arranging different radiation units and combining units, the combination of signals of different frequency bands is realized, the applicable frequency band range of the antenna is enlarged, and the signals of the corresponding frequency bands are interfered or received.

Description

Vehicle-mounted broadband multipurpose antenna

Technical Field

The utility model relates to the technical field of vehicle-mounted antenna equipment, in particular to a vehicle-mounted broadband multipurpose antenna.

Background

The antenna is an indispensable component of wireless communication, and is used for radiating and receiving radio waves, and realizing interconversion between high-frequency current and radio waves. In order to satisfy flexibility of antenna use, an antenna is generally mounted on a vehicle, and mutual communication or signal interference of a specific frequency band in a radiation area is achieved through antenna radiation. Due to the requirements of vehicle driving safety and height limitation, higher requirements are put on the vehicle-mounted antenna.

In view of the above, it is desirable to develop a vehicle-mounted multipurpose antenna which is suitable for vehicle mounting, has reliable performance, and can cover a wide frequency band.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a vehicle-mounted broadband multipurpose antenna with a compact structure, multi-channel signal combining transmission capability and a wide frequency band.

The technical scheme of the utility model is realized as follows: the utility model provides a vehicle-mounted broadband multipurpose antenna which comprises a tube body (1), a first radiation unit (2), a first combining unit (3), a second radiation unit (4), a second combining unit (5), a third radiation unit (6) and a movable base (7);

the movable base (7) is arranged on the automobile body and is fixedly connected with the automobile; one end of the movable base (7) far away from the automobile body is provided with a hollow pipe body (1);

the pipe body (1) extends along the vertical direction; a first radiation unit (2), a first combining unit (3), a second radiation unit (4), a second combining unit (5) and a third radiation unit (6) are sequentially arranged in the tube body (1) from top to bottom; the first radiation unit (2), the second radiation unit (4) and the third radiation unit (6) are correspondingly provided with wiring terminals;

the wiring end of the first radiation unit (2) is electrically connected with the first combining unit (3), and the output end of the first combining unit (3) passes through the second radiation unit (4) and the third radiation unit (6) and is electrically connected with the movable base (7); the wiring end of the second radiation unit (4) is respectively electrically connected with two input ends of the second combining unit (5), and the output end of the second combining unit (5) passes through the third radiation unit (6) and is electrically connected with the movable base (7); the terminal of the third radiation unit (6) is electrically connected with the movable base (7).

On the basis of the above technical solution, preferably, the first radiating unit (2) includes a first coaxial cable (21), two first oscillators (22), and a fixing base (23); the two first vibrators (22) are oppositely and alternately arranged inside one end, away from the automobile body, of the pipe body (1), a fixed seat (23) is arranged between the two first vibrators (22), and the two first vibrators (22) are fixedly connected with the fixed seat (23) respectively; the two first vibrators (22) are hollow, the two first vibrators (22) serve as wiring ends of the first radiation unit (2), the first coaxial cable (21) sequentially extends into the two first vibrators (22) along the extending direction of the tube body (1), a core wire of the first coaxial cable (21) is electrically connected with the first vibrator (22) far away from one end of the automobile body, and a shielding net of the first coaxial cable (21) is electrically connected with the first vibrator (22) close to one end of the automobile body; the first coaxial cable (21) further extends towards the automobile body direction and is electrically connected with one input end of the first combining unit (3).

Further preferably, the first combining unit (3) includes a first combiner (31), a first choke component (32), a first bracket (33), a second choke component (34), and a second coaxial cable (35); the first bracket (33), the first combiner (31) and the second choke component (34) are sequentially arranged along the extending direction of the tube body (1); the first support (33) is arranged on the inner surface, far away from the first radiation unit (2), of the tube body (1); one end of the first bracket (33) close to the automobile body is provided with an annular first choke component (32); the first combiner (31) has two input terminals and one output terminal; one end of the first coaxial cable (21) close to the automobile body is wound on the first choke component (32) and is electrically connected with one input end of the first combiner (31); the other input end of the first combiner (31) is electrically connected with a first support (33), and the first support (33) is used as the other wiring terminal of the first radiation unit (2); the output end of the first combiner (31) is electrically connected with one end of the second coaxial cable (35), and the other end of the second coaxial cable (35) passes through the second radiation unit (4) and the third radiation unit (6) and is electrically connected with the movable base (7).

Still further preferably, the second radiating element (4) comprises two pairs of second vibrators (41), a hollow isolation sleeve (42), two third coaxial cables (43), a third choke assembly (44) and a fourth coaxial cable (45); the isolation sleeve (42) and the third choke assembly (44) are sequentially arranged in the tube body (1) between the first combining unit (3) and the second combining unit (5), two pairs of second vibrators (41) are symmetrically fixed in the tube body (1) at two ends of the isolation sleeve (42) in the extending direction, and the two pairs of second vibrators (41) at different positions are respectively used as terminals of the second radiation unit (4); a core wire and a shielding net at one end of a third coaxial cable (43) are respectively electrically connected with a pair of second vibrators (41) which are arranged at intervals and are arranged on one side, far away from the automobile body, of the isolating sleeve (42), and the other end of the third coaxial cable (43) is electrically connected with one input end of the second combining unit (5); a core wire and a shielding net at one end of another third coaxial cable (43) are respectively and electrically connected with a pair of second vibrators (41) which are arranged at intervals on one side, close to the automobile body, of the isolating sleeve (42), and the other end of the third coaxial cable (43) is wound on the outer surface of the third choke component (44) and then is electrically connected with the other input end of the second combining unit (5); the output end of the second combining unit (5) is electrically connected with one end of a fourth coaxial cable (45), and the other end of the fourth coaxial cable (45) passes through the third radiation unit (6) and is electrically connected with the movable base (7).

Still more preferably, the third radiating unit (6) includes a fourth choke component (61), a fifth choke component (62), two third oscillators (63) and a fifth coaxial cable (64) which are oppositely and separately arranged; the fourth choke component (61) and the fifth choke component (62) are arranged in the pipe body (1) on one side, close to the automobile body, of the second combining unit (5) at intervals and are relatively fixed; the two third vibrators (63) are respectively arranged on the fourth choke component (61) and the fifth choke component (62), the two third vibrators (63) are oppositely arranged at intervals, and the two third vibrators (63) are used as terminals of the third radiating unit (6); the core wire of the fifth coaxial cable (64) is electrically connected with one end, close to the automobile body, of the third vibrator (63) arranged on the fourth choke component (61), and the shielding net of the fifth coaxial cable (64) is electrically connected with one end, far away from the automobile body, of the third vibrator (63) arranged on the fifth choke component (62); one end of the second coaxial cable (35) far away from the first combiner (31) and one end of the fourth coaxial cable (45) far away from the second combiner are wound on the outer surface of the extending direction of the fourth choke component (61) in the same direction, and then are wound on the outer surface of the extending direction of the fifth choke component (62) in the same direction together with one end of the fifth coaxial cable (64) far away from the fourth choke component (61), and are respectively electrically connected with the movable bases (7) in a one-to-one correspondence mode.

Still more preferably, the direction of the second coaxial cable (35) and the fourth coaxial cable (45) around the fourth choke member (61) is the same as the direction of the second coaxial cable (35), the fourth coaxial cable (45) and the fifth coaxial cable (64) around the fifth choke member (62).

Still further preferably, the length of the fourth choke assembly (61) along the axial extension direction of the tubular body (1) is smaller than the length of the fifth choke assembly (62) along the axial extension direction of the tubular body (1).

Still more preferably, the first vibrator (22), the second vibrator (41), and the third vibrator (63) are each provided with a conical radiation portion; conical radiation parts of first oscillators (22), second oscillators (41) or third oscillators (63) which are arranged in adjacent pairs are arranged oppositely and at intervals.

Still further preferably, the movable base (7) comprises a hollow adapter part (71), a hollow flexible connecting part (72), a base (73) and a plurality of channel interfaces (74); the adapter part (71) is fixedly arranged at one end of the pipe body (1) close to the automobile body, and the base (73) is connected with the automobile body; the flexible connecting part is fixedly arranged between the adapter part (71) and the base (73); the base (73) is provided with a plurality of channel interfaces (74), and one ends, close to the automobile body, of the second coaxial cable (35), the fourth coaxial cable (45) and the fifth coaxial cable (64) respectively penetrate through the switching part (71) and the flexible connecting part and are correspondingly and electrically connected with one channel interface (74) on the base (73).

Still further preferably, the flexible connection (72) is a drum spring.

Compared with the prior art, the vehicle-mounted broadband multipurpose antenna provided by the utility model has the following beneficial effects:

(1) according to the utility model, the radiation units in specific frequency bands are organically combined, so that the antenna has a wider applicable frequency band, and the corresponding frequency band signals are effectively enhanced, so that the communication or interference effect of one antenna in the corresponding frequency band is better, and the comprehensive integrated utilization of various discontinuous frequency bands is realized;

(2) a plurality of choke assemblies are correspondingly arranged among the radiation units, so that mutual interference of signals in different frequency bands can be prevented;

(3) the second radiating unit adopts two pairs of second oscillators, so that the combining gain and the signal intensity of the same-frequency signals can be effectively improved; each coaxial cable can also realize different impedance matching functions;

(4) the flexible connection part of the movable base can enable the antenna to have good flexibility and passing performance, and is not easy to deform or damage.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view, partly in section, of a vehicle-mounted broadband multipurpose antenna according to the present invention;

fig. 2 is a half-sectional front view of a combined state of a first radiation unit and a first combining unit of the vehicle-mounted broadband multipurpose antenna according to the present invention;

fig. 3 is a half-sectional front view of a combined state of a second radiation unit and a second combining unit of the vehicle-mounted broadband multi-purpose antenna according to the present invention;

FIG. 4 is a front view, partly in section, of a third radiating element and a movable base of the broadband multipurpose antenna;

FIG. 5 is a schematic diagram of a wire-stripping of coaxial cables connected to terminals of a vehicle-mounted broadband multipurpose antenna according to the present invention;

in the figure: 1. a pipe body; 2. a first radiation unit; 3. a first combining unit; 4. a second radiation unit; 5. a second combining unit; 6. a third radiation unit; 7. a movable base; 21. a first coaxial cable; 22. a first vibrator; 23. a fixed seat; 31. a first combiner; 32. a first choke assembly; 33. a first bracket; 34. a second choke assembly; 35. a second coaxial cable; 41. a second vibrator; 42. a hollow spacer sleeve; 43. a third coaxial cable; 44. a third choke assembly; 45. a fourth coaxial cable;

61. a fourth choke assembly; 62. a fifth choke assembly; 63. a third vibrator; 64. a fifth coaxial cable;

71. a switching part; 72. a flexible connection; 73. a base; 74. a channel interface.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1, the present invention provides a vehicle-mounted broadband multipurpose antenna, which includes a tube body 1, a first radiation unit 1, a first combining unit 3, a second radiation unit 4, a second combining unit 5, a third radiation unit 6 and a movable base 7; specifically, the method comprises the following steps:

the movable base 7 is arranged on the automobile body and is fixedly connected with the automobile; one end of the movable base 7, which is far away from the automobile body, is provided with a hollow pipe body 1; the movable base 7 is used for installing the pipe body 1 and fixing other components;

the pipe body 1 extends along the vertical direction; a first radiation unit 2, a first combining unit 3, a second radiation unit 4, a second combining unit 5 and a third radiation unit 6 are sequentially arranged in the tube body 1 from top to bottom; the first radiation unit 2, the second radiation unit 4 and the third radiation unit 6 are correspondingly provided with terminals; the tube body 1 can be made of a light insulating material, and the tube body 1 is used for accommodating and restraining specific positions of the first radiation unit 2, the first combining unit 3, the second radiation unit 4, the second combining unit 5, the third radiation unit 6 and the like;

the wiring end of the first radiation unit 2 is electrically connected with the first combining unit 3, and the output end of the first combining unit 3 passes through the second radiation unit 4 and the third radiation unit 6 and is electrically connected with the movable base 7; the wiring terminal of the second radiation unit 4 is electrically connected with two input terminals of the second combining unit 5, respectively, and the output terminal of the second combining unit 5 passes through the third radiation unit 6 and is electrically connected with the movable base 7; the terminal of the third radiating element 6 is electrically connected with the movable base 7.

When the utility model is used, different first radiation unit 1, second radiation unit 4 and third radiation unit 6 work independently respectively, and output signals of different frequency bands.

As shown in fig. 1 in conjunction with fig. 2, a specific structure of the first radiation unit 2 is schematically shown. The first radiating unit 2 comprises a first coaxial cable 21, two first oscillators 22 and a fixed seat 23; the two first vibrators 22 are oppositely and alternately arranged inside one end, away from the automobile body, of the pipe body 1, a fixed seat 23 is arranged between the two first vibrators 22, and the two first vibrators 22 are fixedly connected with the fixed seat 23 respectively; the two first vibrators 22 are hollow, the two first vibrators 22 serve as wiring ends of the first radiation unit 2, the first coaxial cable 21 sequentially extends into the two first vibrators 22 along the extending direction of the tube body 1, a core wire of the first coaxial cable 21 is electrically connected with the first vibrator 22 at one end far away from the automobile body, and a shielding net of the first coaxial cable 21 is electrically connected with the first vibrator 22 at one end close to the automobile body; the first coaxial cable 21 further extends toward the vehicle body and is electrically connected to an input end of the first combining unit 3. The two first oscillators 22 are used as symmetrical oscillators in a specific frequency band, and the opposite end surfaces of the two first oscillators form a terminal together, namely a feed port is used for being connected with the first coaxial cable 21; the first coaxial cable 21 supplies a high-frequency current to the two first oscillators 22.

As shown in fig. 2, the first combining unit 3 includes a first combiner 31, a first choke member 32, a first holder 33, a second choke member 34, and a second coaxial cable 35; the first support 33, the first combiner 31, and the second choke member 34 are sequentially disposed along the extending direction of the pipe body 1; the first bracket 33 is arranged on the inner surface of the tube body 1 far away from the first radiation unit 2; the first bracket 33 is provided with an annular first choke assembly 32 at one end close to the automobile body; the first combiner 31 has two input terminals and one output terminal; one end of the first coaxial cable 21 close to the automobile body is wound on the first choke assembly 32 and is electrically connected with one input end of the first combiner 31; the other input end of the first combiner 31 is electrically connected to the first support 33, and the first support 33 serves as the other terminal of the first radiating element 2; the output end of the first combiner 31 is electrically connected to one end of the second coaxial cable 35, and the other end of the second coaxial cable 35 passes through the second radiating unit 4 and the third radiating unit 6 and is electrically connected to the movable base 7. Two input ends of the first combiner 31 connect the two first oscillators 22 and the first support 33 through the first coaxial cable 21 and a feeder line, respectively. The first choke assembly 32 may be a hollow magnetic ring.

The frequency ranges of two signals of the first coaxial cable 21 and a feeder line are different, for example, the first coaxial cable 21 is a 108-400 MHz radiation matching coaxial line; the feeder line matches the 20-108 MHz band signal, and the second coaxial cable 35 combined by the first combiner 31 transmits the 20-400 MHz band signal. The second coaxial cable 35 is electrically connected to the movable base 7. The two first elements 22 are used as radiators of frequency band signals of 20-400 MHz.

As shown in fig. 3, a specific connection structure of the second radiation unit 4 and the second combining unit 5 is provided. The second radiating unit 4 includes two pairs of second oscillators 41, a hollow isolation sleeve 42, two third coaxial cables 43, a third choke assembly 44 and a fourth coaxial cable 45; the isolation sleeve 42 and the third choke assembly 44 are sequentially arranged in the tube body 1 between the first combining unit 3 and the second combining unit 5, two pairs of second oscillators 41 are symmetrically fixed in the tube body 1 at two ends of the extension direction of the isolation sleeve 42, and the two pairs of second oscillators 41 at different positions are respectively used as terminals of the second radiation unit 4; a core wire and a shielding net at one end of a third coaxial cable 43 are respectively electrically connected with a pair of second oscillators 41 arranged at intervals on one side of the isolation sleeve 42 far away from the automobile body, and the other end of the third coaxial cable 43 is electrically connected with one input end of the second combining unit 5; a core wire and a shielding net at one end of another third coaxial cable 43 are respectively electrically connected with a pair of second oscillators 41 arranged at intervals on one side of the isolation sleeve 42 close to the automobile body, and the other end of the third coaxial cable 43 is wound on the outer surface of the third choke component 44 and then is electrically connected with the other input end of the second combining unit 5; the output end of the second combining unit 5 is electrically connected to one end of the fourth coaxial cable 45, and the other end of the fourth coaxial cable 45 passes through the third radiating unit 6 and is electrically connected to the movable base 7. Two groups of second vibrators 41 are symmetrically arranged at two ends of the isolation sleeve 42; the two third coaxial cables 43 transmit completely same-frequency signals such as 1600-3000 MHz, the second combining unit 5 combines the two third coaxial cables 43 at the same frequency, and the two groups of second oscillators 41 can effectively improve the gain and signal intensity of the same-frequency combination; the second element 41 acts as a radiator in the 1600-3000 MHz band. The combined and enhanced signal is electrically connected to the movable base 7 through the fourth coaxial cable 45. The adjacent end face between each pair of adjacent second vibrators 41 constitutes one terminal of the second radiating element 4. The first combiner 31 and the second combiner unit 5 may adopt a common combiner in the market.

As shown in fig. 4, the third radiating unit 6 includes a fourth choke element 61, a fifth choke element 62, two third oscillators 63, and a fifth coaxial cable 64, which are disposed oppositely and at intervals; the fourth choke assembly 61 and the fifth choke assembly 62 are arranged in the pipe body 1 on one side of the second combining unit 5 close to the automobile body in a spaced and relatively fixed mode; the two third vibrators 63 are respectively arranged on the fourth choke component 61 and the fifth choke component 62, the two third vibrators 63 are oppositely arranged at intervals, and the two third vibrators 63 are used as terminals of the third radiating unit 6; a core wire of the fifth coaxial cable 64 is electrically connected with one end, close to the automobile body, of the third vibrator 63 arranged on the fourth choke component 61, and a shielding net of the fifth coaxial cable 64 is electrically connected with one end, far away from the automobile body, of the third vibrator 63 arranged on the fifth choke component 62; after the end of the second coaxial cable 35 far from the first combiner 31 and the end of the fourth coaxial cable 45 far from the second combiner are wound around the outer surface of the extending direction of the fourth choke element 61 in the same direction, the end of the second coaxial cable 64 far from the fourth choke element 61 and the outer surface of the extending direction of the fifth choke element 62 are wound together in the same direction, and are respectively and correspondingly electrically connected with the movable base 7. Similarly, the adjacent end surface between the two third oscillators 63 forms the terminal of the third radiating unit 6, and the two third oscillators 63 can be used as radiators of another frequency band, such as 5725-5850 MHz; the second coaxial cable 35 and the fourth coaxial cable 45 are wound around the fourth choke element 61, and the second coaxial cable 35, the fourth coaxial cable 45 and the fifth coaxial cable 64 are respectively wound around the fifth choke element 62, so that the functions of common mode interference suppression and frequency selection can be realized.

As shown in fig. 4, the surrounding directions of the second coaxial cable 35 and the fourth coaxial cable 45 on the fourth choke member 61 are the same as the surrounding directions of the second coaxial cable 35, the fourth coaxial cable 45 and the fifth coaxial cable 64 on the fifth choke member 62. The length of the fourth choke assembly 61 in the axial extension direction of the tubular body 1 is smaller than the length of the fifth choke assembly 62 in the axial extension direction of the tubular body 1.

As shown in fig. 2 to 4, first oscillator 22, second oscillator 41, and third oscillator 63 are each provided with a conical radiation portion; conical radiating portions of first oscillator 22, second oscillator 41, and third oscillator 63 provided adjacent to each other in pairs are provided facing each other at an interval.

As shown in fig. 4, the movable base 7 includes a hollow adaptor portion 71, a hollow flexible connecting portion 72, a base 73 and a plurality of channel interfaces 74; the adapter 71 is fixedly arranged at one end of the pipe body 1 close to the automobile body, and the base 73 is connected with the automobile body; the flexible connecting part 72 is fixedly arranged between the adapter part 71 and the base 73; the base 73 is provided with a plurality of channel interfaces 74, and one ends of the second coaxial cable 35, the fourth coaxial cable 45 and the fifth coaxial cable 64 close to the automobile body respectively penetrate through the adaptor portion 71 and the flexible connecting portion 72 and are electrically connected with one channel interface 74 on the base 73 correspondingly. The flexible connection 72 may be a drum spring. The base 73 of the present invention can be provided with three channel interfaces of different frequency bands: for example, the channel interfaces respectively correspond to a frequency band of 20-400 MHz, a frequency band of 1600-3000 MHz and a frequency band of 5725-5850 MHz, so that the communication or interference requirements of three different frequency bands can be met by the same antenna and the channel interfaces of three different frequency bands, and each channel can work independently. The integration level of the antenna is greatly improved.

As shown in fig. 5, the first radiating unit 2, the second radiating unit 4, and the third radiating unit 6 are respectively provided with a terminal, and accordingly, the connection between one end of the first coaxial cable 21, one end of the third coaxial cable 43, and one end of the fifth coaxial cable 64, and the terminal needs to be stripped. Generally, a coaxial cable comprises a core wire made of oxygen-free copper, an insulating layer is arranged around the core wire, and a shielding net is arranged outside the insulating layer; the shielding net is externally provided with a sheath; therefore, the outer skin of one end of the coaxial cable needs to be stripped during connection, and the shielding net and the core wire need to be welded on the end faces of the adjacent oscillators respectively.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (9)

1. A vehicle-mounted broadband multipurpose antenna is characterized in that: the device comprises a tube body (1), a first radiation unit (2), a first combining unit (3), a second radiation unit (4), a second combining unit (5), a third radiation unit (6) and a movable base (7);

the movable base (7) is arranged on the automobile body and is fixedly connected with the automobile; one end of the movable base (7) far away from the automobile body is provided with a hollow pipe body (1);

the pipe body (1) extends along the vertical direction; a first radiation unit (2), a first combining unit (3), a second radiation unit (4), a second combining unit (5) and a third radiation unit (6) are sequentially arranged in the tube body (1) from top to bottom; the first radiation unit (2), the second radiation unit (4) and the third radiation unit (6) are correspondingly provided with wiring terminals;

the wiring end of the first radiation unit (2) is electrically connected with the first combining unit (3), and the output end of the first combining unit (3) passes through the second radiation unit (4) and the third radiation unit (6) and is electrically connected with the movable base (7); the wiring end of the second radiation unit (4) is respectively electrically connected with two input ends of the second combining unit (5), and the output end of the second combining unit (5) passes through the third radiation unit (6) and is electrically connected with the movable base (7); the terminal of the third radiation unit (6) is electrically connected with the movable base (7).

2. The vehicle-mounted broadband multipurpose antenna according to claim 1, wherein: the first radiation unit (2) comprises a first coaxial cable (21), two first vibrators (22) and a fixed seat (23); the two first vibrators (22) are oppositely and alternately arranged inside one end, away from the automobile body, of the pipe body (1), a fixed seat (23) is arranged between the two first vibrators (22), and the two first vibrators (22) are fixedly connected with the fixed seat (23) respectively; the two first vibrators (22) are hollow, the two first vibrators (22) serve as wiring ends of the first radiation unit (2), the first coaxial cable (21) sequentially extends into the two first vibrators (22) along the extending direction of the tube body (1), a core wire of the first coaxial cable (21) is electrically connected with the first vibrator (22) far away from one end of the automobile body, and a shielding net of the first coaxial cable (21) is electrically connected with the first vibrator (22) close to one end of the automobile body; the first coaxial cable (21) further extends towards the automobile body direction and is electrically connected with one input end of the first combining unit (3).

3. The vehicle-mounted broadband multipurpose antenna of claim 2, wherein: the first combining unit (3) comprises a first combiner (31), a first choke component (32), a first bracket (33), a second choke component (34) and a second coaxial cable (35); the first bracket (33), the first combiner (31) and the second choke component (34) are sequentially arranged along the extending direction of the tube body (1); the first support (33) is arranged on the inner surface, far away from the first radiation unit (2), of the tube body (1); one end of the first bracket (33) close to the automobile body is provided with an annular first choke component (32); the first combiner (31) has two input terminals and one output terminal; one end of the first coaxial cable (21) close to the automobile body is wound on the first choke component (32) and is electrically connected with one input end of the first combiner (31); the other input end of the first combiner (31) is electrically connected with a first support (33), and the first support (33) is used as the other wiring terminal of the first radiation unit (2); the output end of the first combiner (31) is electrically connected with one end of the second coaxial cable (35), and the other end of the second coaxial cable (35) passes through the second radiation unit (4) and the third radiation unit (6) and is electrically connected with the movable base (7).

4. The vehicle-mounted broadband multipurpose antenna according to claim 3, wherein: the second radiation unit (4) comprises two pairs of second vibrators (41), a hollow isolation sleeve (42), two third coaxial cables (43), a third choke component (44) and a fourth coaxial cable (45); the isolation sleeve (42) and the third choke assembly (44) are sequentially arranged in the tube body (1) between the first combining unit (3) and the second combining unit (5), two pairs of second vibrators (41) are symmetrically fixed in the tube body (1) at two ends of the isolation sleeve (42) in the extending direction, and the two pairs of second vibrators (41) at different positions are respectively used as terminals of the second radiation unit (4); a core wire and a shielding net at one end of a third coaxial cable (43) are respectively electrically connected with a pair of second vibrators (41) which are arranged at intervals and are arranged on one side, far away from the automobile body, of the isolating sleeve (42), and the other end of the third coaxial cable (43) is electrically connected with one input end of the second combining unit (5); a core wire and a shielding net at one end of another third coaxial cable (43) are respectively and electrically connected with a pair of second vibrators (41) which are arranged at intervals on one side, close to the automobile body, of the isolating sleeve (42), and the other end of the third coaxial cable (43) is wound on the outer surface of the third choke component (44) and then is electrically connected with the other input end of the second combining unit (5); the output end of the second combining unit (5) is electrically connected with one end of a fourth coaxial cable (45), and the other end of the fourth coaxial cable (45) passes through the third radiation unit (6) and is electrically connected with the movable base (7).

5. The vehicle-mounted broadband multipurpose antenna according to claim 4, wherein: the third radiating unit (6) comprises a fourth choke component (61), a fifth choke component (62), two third oscillators (63) and a fifth coaxial cable (64) which are arranged oppositely and at intervals; the fourth choke component (61) and the fifth choke component (62) are arranged in the pipe body (1) on one side, close to the automobile body, of the second combining unit (5) at intervals and are relatively fixed; the two third vibrators (63) are respectively arranged on the fourth choke component (61) and the fifth choke component (62), the two third vibrators (63) are oppositely arranged at intervals, and the two third vibrators (63) are used as terminals of the third radiating unit (6); the core wire of the fifth coaxial cable (64) is electrically connected with one end, close to the automobile body, of the third vibrator (63) arranged on the fourth choke component (61), and the shielding net of the fifth coaxial cable (64) is electrically connected with one end, far away from the automobile body, of the third vibrator (63) arranged on the fifth choke component (62); one end of the second coaxial cable (35) far away from the first combiner (31) and one end of the fourth coaxial cable (45) far away from the second combiner are wound on the outer surface of the extending direction of the fourth choke component (61) in the same direction, and then are wound on the outer surface of the extending direction of the fifth choke component (62) in the same direction together with one end of the fifth coaxial cable (64) far away from the fourth choke component (61), and are respectively electrically connected with the movable bases (7) in a one-to-one correspondence mode.

6. The vehicle-mounted broadband multipurpose antenna according to claim 5, wherein: the surrounding directions of the second coaxial cable (35) and the fourth coaxial cable (45) on the fourth choke component (61) are the same as the surrounding directions of the second coaxial cable (35), the fourth coaxial cable (45) and the fifth coaxial cable (64) on the fifth choke component (62).

7. The vehicle-mounted broadband multipurpose antenna according to claim 5, wherein: the length of the fourth choke component (61) along the axial extension direction of the pipe body (1) is smaller than the length of the fifth choke component (62) along the axial extension direction of the pipe body (1).

8. The vehicle-mounted broadband multipurpose antenna according to claim 5, wherein: the first vibrator (22), the second vibrator (41) and the third vibrator (63) are all provided with conical radiation parts; conical radiation parts of first oscillators (22), second oscillators (41) or third oscillators (63) which are arranged in adjacent pairs are arranged oppositely and at intervals.

9. The vehicle-mounted broadband multipurpose antenna according to claim 5, wherein: the movable base (7) comprises a hollow adapter part (71), a hollow flexible connecting part (72), a base (73) and a plurality of channel interfaces (74); the adapter part (71) is fixedly arranged at one end of the pipe body (1) close to the automobile body, and the base (73) is connected with the automobile body; the flexible connecting part is fixedly arranged between the adapter part (71) and the base (73); the base (73) is provided with a plurality of channel interfaces (74), and one ends, close to the automobile body, of the second coaxial cable (35), the fourth coaxial cable (45) and the fifth coaxial cable (64) respectively penetrate through the switching part (71) and the flexible connecting part and are correspondingly and electrically connected with one channel interface (74) on the base (73).

Images