CN204651472U - A kind of low section broadband inversed F antenna being applicable to vehicle mobile communication - Google Patents
A kind of low section broadband inversed F antenna being applicable to vehicle mobile communication Download PDFInfo
- Publication number
- CN204651472U CN204651472U CN201420846605.8U CN201420846605U CN204651472U CN 204651472 U CN204651472 U CN 204651472U CN 201420846605 U CN201420846605 U CN 201420846605U CN 204651472 U CN204651472 U CN 204651472U
- Authority
- CN
- China
- Prior art keywords
- antenna
- radiant body
- mobile communication
- inversed
- applicable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Details Of Aerials (AREA)
Abstract
The utility model discloses a kind of low section broadband inversed F antenna being applicable to vehicle mobile communication, comprise monopole radiant body and metal base plate, it is characterized in that, described monopole radiant body is mainly formed through edge contour figuration by a rectangular metal sheet, monopole radiant body stands on metal base plate, the rear and front end of monopole radiant body is respectively arranged with distributing point and short dot, and by feed coaxial connector connection metal base plate on distributing point, short dot is directly connected with metal base plate.This antenna can work in two frequency ranges, low-frequency range is 813MHz-968MHz (VSWR≤2.0, bandwidth is 17.41%), high band is 1430MHz-6500MHz (VSWR≤2.0, bandwidth is 126.51%), cover all mobile communication frequency ranges of three large operator 2G/3G/4G, there is frequency range extremely wide, good directionality, efficiency is high, size is little, low section, lightweight, easy processing, the advantages such as low cost, it is the preferred antenna type of applicable vehicle mobile communication, especially its miniaturized and low profile features, be conducive to reducing the vehicle air drag suffered when running at high speed.
Description
Technical field
The utility model relates to communication antenna equipment technical field, relates to a kind of antenna being applicable to vehicle cellular mobile communication more specifically.
Background technology
The information technology such as the Internet and mobile communication profoundly changes human lives, and message becomes valuable source indispensable in people's daily life.Wherein, mobile communication technology becomes most important, the most convenient, the most the most frequently used approach of people's obtaining information with the advantage of its uniqueness.At present, mobile communication achieves the network coverage of the wide geographic area such as cities and towns and rural area substantially, and middle low speed user can obtain good communication quality in most of region.But for the user of high-speed motion, such as automobile, train, high ferro passenger, because handover is frequent, Doppler effect is remarkable, and communication link robustness is poor, often occurs the problems such as call drop interrupts, information transmission is not smooth, time delay is longer.Along with people's trip is day by day frequent, the time spent on a vehicle gets more and more.Naturally, people wish, when the vehicles such as used during taking train and high ferro, can enjoy as high-quality wireless communication service the same in urban district with family.Therefore, only have and solve the mobile communication problem of rapid, " anyone, at any time, Anywhere, obtaining information in any way " dream could really become a reality.At present, highway and the many employings of high-speed railway build special mobile base station along the line to realize the scheme of at full line seamless coverage.Because body construction intensity is general comparatively large, cause radio wave transmission loss to increase, cab signal level significantly declines.In view of this, repeater in car is adopted just can to overcome above-mentioned difficulties well.But antenna protrudes from car body surface, can bring and travel windage problem.In sum, the car antenna of high-performance, broadband, miniaturization, low section, light weight, low cost becomes the key of hot-short wireless communication technology.
Summary of the invention
The purpose of this utility model is exactly deficiency in order to solve prior art and a kind of vehicles be intended to for running at high speed provided, as long-distance big bus, train, high ferro train etc., provide the mobile communication broad band antenna solutions that a kind of high-performance, miniaturization, low section, light weight, structure are simple, with low cost.
The utility model adopts following technical solution to realize above-mentioned purpose: a kind of low section broadband inversed F antenna being applicable to vehicle mobile communication, comprise monopole radiant body and metal base plate, it is characterized in that, described monopole radiant body is obtained through the thickening of edge contour figuration by one piece of rectangular metal sheet, monopole radiant body stands on metal base plate, the rear and front end of monopole radiant body is respectively arranged with distributing point and short dot, by feed coaxial connector connection metal base plate on distributing point, short dot is directly connected with metal base plate, the external periphery outline of monopole radiant body is from distributing point, upwards extend to arc section and spline curve section successively, horizontal segment is connected with at the end of spline curve section, the end of horizontal segment is bent to stepped edges one downwards, the lower end of stepped edges one is connected with main groove, in the other end side direction of main groove, bending extends to the stepped edges two corresponding with stepped edges one, interval is provided with between stepped edges one and stepped edges two, the end bending of stepped edges two is stepped edges three downwards, stepped edges three is through short dot, extend to distributing point direction and form the inward flange groove be connected between distributing point and short dot.
Further illustrating as technique scheme, recessed in the middle part of described horizontal segment is top water flat grooves, and the lateral margin horizontal segment of top water flat grooves connects the initiating terminal of stepped edges one.
Be provided with center hole on the left of the main groove of described monopole radiant body, entire physical weight can be alleviated and save material.
The outer edge profile of described monopole radiant body has straight flange rounding of angle angle to process, to facilitate processing and manufacturing.
Described monopole radiant body and metal base plate all select common metal material, comprise silver, fine copper, gold, alloyed copper, fine aluminium and die casting aluminium.
Described feed coaxial connector is the coaxial connector of flanged dish, and as BNC-M, SMA-M connector, feed coaxial connector connects 50 Ω standard coaxial lines, and electrical connection is reliable and convenient.
The beneficial effect that the utility model adopts above-mentioned technical solution to reach is:
1, the monopole radiant body long edge horizontal direction of rectangle is placed to reduce section height by the utility model.
2, distributing point of the present utility model and short dot to be chosen on rectangular sheet two and are made low-frequency current have sufficiently long path at a distance of maximum location point, the windage brought when left side edge adopts smooth circular arc and spline curve can reduce installation.
3, monopole radiant body edge of the present utility model surrounding diverse location inwardly opens multiple groove, and carries out geometry bending to straight flange, increases current path further, reduces antenna size.
4, the shape of interior recessing of the present utility model, position, size not only determine the length of current path, also affect band gap width and mismatch, also determine passband width and coupling quality simultaneously.
5, monopole radiant body of the present utility model has certain thickness metal derby by becoming, then is shorted to floor in conjunction with end, thus realizes the good impedance match in wide frequency range.
6, the utility model gets the center hole that a radius is R, impenetrating thickness from Left-side center position, and cuts the groove of uniform depth from block-like radiator adjacent edges position toward core, can alleviate entire physical weight and save material.
7, rounding process is carried out, to facilitate processing and manufacturing in all straight flange angles of radiant body outer edge.
8, broadband inversed F antenna feed impedance of the present utility model is close to 50 Ω, but not with the direct feed of standard coaxial line, but pass through the coaxial connector of flanged dish, as BNC-M, SMA-M connector is connected with antenna, antenna feeder is electrically connected more reliable and convenient.
9, broadband inversed F antenna has broadband, omni-directional is good, efficiency is high, the advantage of miniaturized, low section, lightweight, low cost, be especially applicable to rapid as the mobile communication of high ferro train, but its application is not limited thereto.
Accompanying drawing explanation
Fig. 1 is broadband inversed F antenna front view;
Fig. 2 is broadband inversed F antenna vertical view;
Fig. 3 is broadband inversed F antenna side view;
Fig. 4 is broadband inversed F Antenna baseplate and feedback point position;
Fig. 5 is broadband inversed F antenna reflection coefficient | S
11|;
Fig. 6 is broadband inversed F antenna f
1=824MHz real gain pattern (solid line-Phi=0 °, XOZ plane; Dotted line-Theta=90o, XOY plane), G=3.31dBi;
Fig. 7 is broadband inversed F antenna f2=1710MHz real gain pattern (solid line-Phi=0 °, XOZ plane;-Theta=90 °, dotted line, XOY plane), G=4.77dBi;
Fig. 8 is broadband inversed F antenna f
1=5850MHz real gain pattern (solid line-Phi=0 °, XOZ plane;-Theta=90 °, dotted line, XOY plane), G=5.91dBi;
Fig. 9 is broadband inversed F antenna efficiency η and frequency f relation curve.
Description of reference numerals: 1, monopole radiant body; 1-1, arc section; 1-2, spline curve section; 1-3, top water flat grooves; 1-4, main slot opening place stepped edges; 1-5, main groove; 1-6, short-circuit point stepped edges; 1-7, short dot; 1-8, inward flange groove; 1-9, center hole; 1-10, distributing point; 1-11, feedback point coaxial connector; 1-12, rounding; 1-13, horizontal segment; 2, metal base plate.
Embodiment
Below in conjunction with specific embodiment, the technical solution of the utility model is explained in detail.
As Figure 1-Figure 4, the utility model is a kind of low section broadband inversed F antenna being applicable to vehicle mobile communication, and antenna structure comprises: monopole radiant body 1 and metal base plate 2.Wherein, monopole radiant body increases thickness by a rectangular metal sheet and obtains after edge contour figuration, monopole radiant body stands on metal base plate 2, the rear and front end of monopole radiant body is respectively arranged with distributing point 1-10 and short dot 1-7, by feed coaxial connector connection metal base plate on distributing point, short dot is directly connected with metal base plate.The external periphery outline of monopole radiant body comprises outer peripheral arc section 1, outer peripheral spline curve section 1-2, top water flat grooves 1-3, outer peripheral main slot opening place stepped edges 1-4, outer peripheral main groove 1-5, short-circuit point stepped edges 1-6, inward flange groove 1-8, top water flat grooves 1-3 is connected at the end of spline curve section 1-2, another side of top water flat grooves 1-3 is connected with horizontal segment 1-13, and the end of horizontal segment 1-13 connects main slot opening place stepped edges 1-4.Metal base plate 2 is oval floor, and its major axis is parallel with monopole radiant body length direction, as shown in Figure 2.The 1-12 process of straight flange rounding of angle angle is had, to facilitate processing and manufacturing at the outer edge profile of monopole radiant body.In order to realize miniaturization, low section, light weight, the utility model takes following technical measures: 1, place long for rectangle monopole edge horizontal direction to reduce section height; 2, distributing point and short dot to choose on rectangular sheet two at a distance of maximum location point, as shown in Figure 1, make low-frequency current have sufficiently long path; 3, left side edge adopts smooth circular arc and spline curve, to reduce the windage brought when installing; 4, rectangular monopole radiant body edge surrounding diverse location inwardly opens multiple groove, and carries out geometry bending to straight flange, increases current path further, reduces antenna size.It should be noted that, the groove opened in these not only plays a part to extend current path, also on original broadband character, produces band gap because of its fault of construction.And the width of band gap, mismatch all have substantial connection with the shape of groove, position, size, especially have direct relation with main groove.In addition, in order to realize and standard 50 Ω impedance matching, rectangular sheet be become there is certain thickness metal derby, then being shorted to floor in conjunction with end, just can realize the good impedance match in very broadband.Finally, for alleviating entire physical weight and saving material, get from the Left-side center position of main groove 1-5 the center hole 1-9 that a radius is r, impenetrating thickness, and cut the groove of uniform depth from monopole radiant body adjacent edges position toward core.
It should be noted that: metal base plate shape can be the arbitrary shapes such as rectangle, polygon, circle, ellipse.Preferably, the utility model selects the ellipse of applicable monopole shape, size.Described wideband monopole and oval floor material therefor are the common metal materials such as silver, fine copper, gold, alloyed copper, fine aluminium and die casting aluminium.Consider conductive capability and processing difficulty or ease, cost, the selection of material is fine aluminium or die casting aluminium here.
Finally it should be noted that, reliable and convenient in order to be electrically connected, 50 Ω coaxial lines are the coaxial connectors by flanged dish, as BNC-M, SMA-M connector is connected with antenna, and indirect connection distributing point.
As shown in Figure 5, inverse-F antenna has dual-band broadband characteristic, and low-frequency range is 813MHz-968MHz (VSWR≤2.0, bandwidth is 17.41%), and high band is 1463MHz-6500MHz (VSWR≤2.0, bandwidth is 126.51%).Cover all mobile communication frequency ranges of three large operator 2G/3G/4G, comprise GSM 900/1800, DCS, PCS, UMTS, TD-SCDMA, WCDMA, CDMA2000, WLAN, WiMAX, TDD-LTE, FDD-LTE, in addition from Fig. 6-Fig. 9, inverse-F antenna all has good horizontal omnidirectional radiation characteristic when low frequency, intermediate frequency and high frequency, in whole band, real gain is 3.3dBi-6.5dBi, and efficiency is greater than 83%.Know accordingly, this antenna is suitable for various mobile communication frequency range broadbands cover antenna.
Above-described is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (1)
1. one kind is applicable to the low section broadband inversed F antenna of vehicle mobile communication, comprise monopole radiant body and metal base plate, it is characterized in that, described monopole radiant body is mainly formed through edge contour figuration by a rectangular metal sheet, monopole radiant body stands on metal base plate, the rear and front end of monopole radiant body is respectively arranged with distributing point and short dot, by feed coaxial connector connection metal base plate on distributing point, short dot is directly connected with metal base plate, the external periphery outline of monopole radiant body is from distributing point, upwards extend to arc section and spline curve section successively, horizontal segment is connected with at the end of spline curve section, the end of horizontal segment bends downwards and is provided with stepped edges one, the lower end of stepped edges one is connected with main groove, in the other end side direction of main groove, bending extends to the stepped edges two corresponding with stepped edges one, the end bending of stepped edges two is stepped edges three downwards, stepped edges three is through short dot, extend to distributing point direction and form the inward flange groove be connected between distributing point and short dot.
2
.a kind of low section broadband inversed F antenna being applicable to vehicle mobile communication according to claim 1, is characterized in that, the edge contour figuration of described rectangular metal sheet thickeies.
3
.a kind of low section broadband inversed F antenna being applicable to vehicle mobile communication according to claim 1 and 2, it is characterized in that, recessed in the middle part of described horizontal segment is top water flat grooves.
4
.a kind of low section broadband inversed F antenna being applicable to vehicle mobile communication according to claim 1, is characterized in that, be provided with center hole on the left of the main groove of described monopole radiant body.
5
.a kind of low section broadband inversed F antenna being applicable to vehicle mobile communication according to claim 1, it is characterized in that, the outer edge profile of described monopole radiant body has straight flange rounding of angle angle to process.
6
.a kind of low section broadband inversed F antenna being applicable to vehicle mobile communication according to claim 1, it is characterized in that, described monopole radiant body and metal base plate all select the one in silver, fine copper, gold, alloyed copper, fine aluminium and die casting aluminium.
7
.a kind of low section broadband inversed F antenna being applicable to vehicle mobile communication according to claim 1, it is characterized in that, described feed coaxial connector is the coaxial connector of flanged dish, and feed coaxial connector connects 50 standard coaxial lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420846605.8U CN204651472U (en) | 2014-12-27 | 2014-12-27 | A kind of low section broadband inversed F antenna being applicable to vehicle mobile communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420846605.8U CN204651472U (en) | 2014-12-27 | 2014-12-27 | A kind of low section broadband inversed F antenna being applicable to vehicle mobile communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204651472U true CN204651472U (en) | 2015-09-16 |
Family
ID=54104185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420846605.8U Expired - Fee Related CN204651472U (en) | 2014-12-27 | 2014-12-27 | A kind of low section broadband inversed F antenna being applicable to vehicle mobile communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204651472U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834166A (en) * | 2017-10-10 | 2018-03-23 | 广东盛路通信科技股份有限公司 | A kind of double frequency omnibearing high ferro antenna |
| CN111211406A (en) * | 2020-03-24 | 2020-05-29 | 上海大学 | Monopole high-speed railway antenna |
| CN115275583A (en) * | 2022-09-23 | 2022-11-01 | 盛纬伦(深圳)通信技术有限公司 | Broadband multi-beam antenna array element and array applied to decimeter wave frequency band vehicle-mounted communication |
-
2014
- 2014-12-27 CN CN201420846605.8U patent/CN204651472U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834166A (en) * | 2017-10-10 | 2018-03-23 | 广东盛路通信科技股份有限公司 | A kind of double frequency omnibearing high ferro antenna |
| CN111211406A (en) * | 2020-03-24 | 2020-05-29 | 上海大学 | Monopole high-speed railway antenna |
| CN115275583A (en) * | 2022-09-23 | 2022-11-01 | 盛纬伦(深圳)通信技术有限公司 | Broadband multi-beam antenna array element and array applied to decimeter wave frequency band vehicle-mounted communication |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101114733B (en) | Integrated multi-frequency antenna with wide band function | |
| CN104701604A (en) | Inverted-F broadband antenna suitable for vehicle's mobile communication | |
| CN104505592B (en) | A kind of MIMO mobile terminal antennas with broadband character | |
| CN209232942U (en) | A kind of ring-like broadband dual-band antenna of rectangle | |
| CN108376831B (en) | Directional and double-frequency omni-directional combined vehicle-mounted antenna | |
| CN204029976U (en) | A kind of ultra wideband dual polarization base station antenna radiation unit | |
| CN204651472U (en) | A kind of low section broadband inversed F antenna being applicable to vehicle mobile communication | |
| CN103474755B (en) | A kind of dual-polarization broadband antenna oscillator unit and wide frequency antenna | |
| CN202712411U (en) | Wideband dual-polarization base station antenna radiation unit | |
| CN203800183U (en) | Triple-frequency monopole antenna applying to WLAN and WiMAX | |
| CN204706645U (en) | Ultra-wideband antenna | |
| CN101304119A (en) | Miniaturization plane ultra broad band time-domain antenna | |
| CN208189774U (en) | Orientation and double frequency omnibearing combined type car antenna | |
| CN204966683U (en) | Super wide band double polarization is symmetrical antenna unit not | |
| CN104466408B (en) | Rounded groove ultra-wide band microstrip patch antenna | |
| CN213184598U (en) | Miniaturized ultra-wideband multifunctional antenna | |
| CN102437409A (en) | Ultra-wideband dipole radiation unit | |
| CN111029755B (en) | Low-profile magnetoelectric dipole folding antenna | |
| CN201518350U (en) | Broad band radiation unit for mobile communication base station antennae | |
| CN204375969U (en) | Rounded groove ultra-wide band microstrip patch antenna | |
| CN103700923B (en) | A kind of High-gain dual-frequency base station antenna | |
| CN104078751A (en) | Directional dual-frequency base station antenna | |
| CN207368212U (en) | Vehicle-mounted 4G blade antennas | |
| CN109786958A (en) | A kind of minimized wide-band Vivaldi monopole antenna | |
| CN204732524U (en) | Automobile shark fin type antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20181227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |