CN105226394B - C/Ku dual-band array antenna - Google Patents
C/Ku dual-band array antenna Download PDFInfo
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- CN105226394B CN105226394B CN201510634110.8A CN201510634110A CN105226394B CN 105226394 B CN105226394 B CN 105226394B CN 201510634110 A CN201510634110 A CN 201510634110A CN 105226394 B CN105226394 B CN 105226394B
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Abstract
The invention discloses a C/Ku dual-band array antenna, which comprises a C-band antenna and a Ku-band antenna arranged parallelly and in the same direction, wherein the C-band antenna comprises a waveguide coaxial converter, a C-band power division network and a uniform linear array which is formed by a plurality of C-band horn antennas; the Ku-band antenna comprises an input waveguide, a Ku-band power division network and a uniform linear array which is formed by a plurality of Ku-band horn antennas; the waveguide coaxial converter and the input waveguide receive a signal source of the same way; and the uniform linear array formed by the C-band horn antennas and the uniform linear array formed by the Ku-band horn antennas are arranged parallelly. According to the dual-band array antenna provided by the invention, cable assemblies and radio frequency devices are saved, physical space is saved, miniature design can be realized, the tree-shaped power division network is adopted to ensure the wireless signal transmission efficiency, and amplitude and phase consistency of multiple ways of signals can be ensured.
Description
Technical field
The present invention relates to array antenna technique field, specifically, is related to a kind of C/Ku dual-band array antennas.
Background technology
In existing multi-channel rf signal emission system, end transmitting antenna adopts individual antenna mostly by wireless signal
Launch, but aerial array constituted using multichannel unit by less transmitting antenna also, using aerial array transmitting multichannel without
Line signal.Wherein, multiple wireless signal emitting-source is typically connected multigroup coaxial cable by the latter respectively, using multigroup coaxial electrical
Cable is respectively by each antenna element of each road signal transmission to transmitting antenna array.
Due to when multiple wireless signal is transmitted, needing the cable assembly and radio-frequency devices of configuration more, therefore, it is difficult to protecting
The amplitude-phase consistency of card multiple wireless signal, causes width facial difference larger, it is difficult to meet such as operation such as antenna power synthesis
Specific demand.
Therefore, when needing a kind of multiple wireless signal of transmitting at the same time badly, it is ensured that the amplitude-phase consistency of each road wireless signal
Array antenna.
The content of the invention
Embodiments of the invention provide a kind of C/Ku dual-band array antennas, including the C band antennas being set up in parallel in the same direction
With Ku band antennas；
The C band antennas include waveguide coaxial converter, C frequency ranges power division network and by several C frequency range electromagnetic horns
The uniform linear array of composition, if C frequency band signals to be divided into C frequency ranges power division network the branch letter of main line same magnitude and phase place
Number, C frequency range shunting signs are launched respectively by each C frequency ranges electromagnetic horn；
The Ku band antennas include input waveguide, Ku frequency ranges power division network and are made up of some Ku frequency ranges electromagnetic horns
Uniform linear array, if Ku frequency band signals to be divided into Ku frequency ranges power division network the shunting sign of main line same magnitude and phase place,
Ku frequency range shunting signs are launched respectively by each Ku frequency ranges electromagnetic horn；
Wherein, the waveguide coaxial converter and input waveguide are received with signal source all the way, and C frequency ranges electromagnetic horn is constituted
The uniform linear array that constitutes with Ku frequency ranges electromagnetic horn of uniform linear array be arranged in parallel.
In one embodiment, the input of the C frequency ranges power division network connects waveguide coaxial converter to receive C frequency ranges
Signal, some outfans of the C frequency ranges power division network connect C frequency range electromagnetic horns correspondingly.
In one embodiment, the C band antennas are additionally provided with C frequency range connecting plates, the outfan of C frequency range power division networks
The both sides of the C frequency ranges connecting plate are correspondingly arranged at C frequency range electromagnetic horns.
In one embodiment, the input connection input waveguide of the Ku frequency ranges power division network is believed with receiving Ku frequency ranges
Number, some outfans of the Ku frequency ranges power division network connect Ku frequency range electromagnetic horns correspondingly.
In one embodiment, the Ku band antennas are additionally provided with Ku frequency range connecting plates, Ku frequency range power division networks it is defeated
Go out end the both sides of the Ku frequency ranges connecting plate are correspondingly arranged at Ku frequency range electromagnetic horns.
In one embodiment, the C frequency ranges power division network is tree network, and its input is to the ripple of any outfan
Guide passage electrical path length is identical.
In one embodiment, the C frequency ranges power division network is provided with a primary work(partial wave and leads and two secondary work(point
Waveguide, respectively with an input and two outfans；
Two outfans that the primary work(partial wave is led connect the input that two secondary work(partial waves are led respectively.
In one embodiment, the Ku frequency ranges power division network is tree network, and its input is to any outfan
Waveguide path length is identical.
In one embodiment, the Ku frequency ranges power division network is provided with a primary work(partial wave and leads and two secondary work(point
Waveguide, respectively with an input and two outfans；
Two outfans that the primary work(partial wave is led connect the input that two secondary work(partial waves are led respectively.
In one embodiment, the Ku frequency ranges power division network be provided with a primary work(partial wave lead, two secondary work(point
Waveguide and four three-level work(partial waves are led, respectively with an input and two outfans；
Two outfans that the primary work(partial wave is led connect the input that two secondary work(partial waves are led respectively；
Four outfans that described two secondary work(partial waves are led connect the input that four three-level work(partial waves are led.
Dual-band array antenna provided in an embodiment of the present invention can be used for the transmission and transmitting of C/Ku dual-band antenna signals.
Radio-frequency signal source all the way is received in the input of aerial signal and is delivered to C band antennas and Ku band antennas respectively.In C frequency ranges day
Line and Ku band antenna near-ends are utilized respectively waveguide power division network and carry out work(point, then transmit to the electromagnetic horn transmitting of aerial array
Go out.
The dual-band array antenna that embodiments of the invention are provided can optionally be operated in C or Ku frequency ranges, dislike
Also wireless signal normal transmission is can guarantee that under bad weather condition.
Compared with prior art, the dual-band array antenna that the present invention is provided saves cable assembly and radio-frequency devices, saves
About physical space, can realize Miniaturization Design.And transmission of wireless signals efficiency ensure that using tree-shaped power division network, protect
The amplitude-phase consistency of card multiple signals.
Additionally, can also flexibly arrange quantity and the arrangement of electromagnetic horn in aerial array, be conducive in single frequency band antenna
Figuration is carried out to wave beam during transmitting.
Other features and advantages of the present invention will be illustrated in the following description, also, partly be become from description
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by description, rights
In claim and accompanying drawing, specifically noted structure is realizing and obtain.
Description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for description, the reality with the present invention
Apply example to be provided commonly for explaining the present invention, be not construed as limiting the invention.In the accompanying drawings：
Structural representations of the Fig. 1 for the C/Ku dual-band array antennas of the embodiment of the present invention；
Structural representations of Fig. 2 a for the C band antennas of the embodiment of the present invention；
E face directional diagrams of Fig. 2 b for the C band antennas of the embodiment of the present invention；
H face directional diagrams of Fig. 2 c for the C band antennas of the embodiment of the present invention；
Structural representations of Fig. 3 a for the Ku band antennas of the embodiment of the present invention；
E face directional diagrams of Fig. 3 b for the Ku band antennas of the embodiment of the present invention；
H face directional diagrams of Fig. 3 c for the Ku band antennas of the embodiment of the present invention；
Schematic diagrams of the Fig. 4 for another kind of structure of the Ku band antennas of the embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, further is made to the present invention below in conjunction with accompanying drawing
Ground is described in detail.
Embodiments of the invention are illustrated below in conjunction with Figure of description, it will be appreciated that described herein preferred
Embodiment is merely to illustrate and explains the present invention, is not intended to limit the present invention.And in the case where not colliding, the present invention
Embodiment in feature can be combined with each other.
Embodiments of the invention provide a kind of C/Ku dual-band array antennas, and its structure is as shown in figure 1, arranged side by side including homophase
The C band antennas 130 and Ku band antennas 150 of setting.Wherein, C band antennas 130 include waveguide coaxial converter 131, C frequency
Section power division network 132 and the uniform linear array 133 being made up of several C frequency range electromagnetic horns, similar, Ku band antennas
150 uniform linear arrays for including input waveguide 151, Ku frequency ranges power division network 152 and being made up of some Ku frequency ranges electromagnetic horns
153.Waveguide coaxial converter 131 and input waveguide 151 are received with signal source all the way, and C frequency ranges electromagnetic horn constitute it is uniform
The uniform linear array 153 that linear array 133 is constituted with Ku frequency ranges electromagnetic horn be arranged in parallel.
Wherein, C frequency ranges (3.7-4.2GHz) are mainly used in ground communication, trunking traffic and microwave communication, and Ku frequency ranges
(11.7-12.2GHz) it is mainly used in satellite communication.In the space propagation characteristic of electromagnetic wave, C frequency ranges are better than Ku frequency ranges, because C
The transmission of frequency range is affected less by weather, and Ku is then affected larger by precipitation, can even cause transmission when running into torrential rain
Interrupt.Dual-band array antenna shown in Fig. 1 can optionally be operated in C or Ku frequency ranges, under inclement weather conditions
Can guarantee that wireless signal normal transmission.
Specifically, the input connection waveguide coaxial converter 131 of C frequency ranges power division network 132 is believed with receiving C frequency ranges
Number, some outfans of C frequency ranges power division network 132 connect C frequency range electromagnetic horns correspondingly.C frequency ranges power division network 132 will
If C frequency band signals are divided into the shunting sign of main line same magnitude and phase place, C is launched respectively by each C frequency ranges electromagnetic horn
Frequency range shunting sign.In order to the amplitude for ensureing each shunting sign is consistent with phase place, C frequency ranges power division network 132 is preferably using tree
Shape network, and its input is identical to the Waveguide path length of any outfan.
Structural representations of Fig. 2 a for C band antennas 130.As shown in Figure 2 a, C frequency ranges power division network 132 is provided with one
Primary work(partial wave is led C1 and two secondary work(partial wave and leads C2, respectively with an input and two outfans.Primary work(partial wave
The input connection waveguide coaxial converter 131 of C1 is led, for receiving armed signal source.Primary work(partial wave leads two of C1
Outfan connects the input that two secondary work(partial waves lead C2 respectively.Two secondary work(partial waves lead one a pair of four outfans of C2
Should four C frequency range electromagnetic horns of ground connection.These electromagnetic horns rearrange aerial array along straight uniform.
In order to ensure stablizing for antenna structure, C band antennas 130 are additionally provided with C frequency ranges connecting plate 135, C frequency range work(subnettings
The outfan of network 132 is fixed on the both sides of C frequency ranges connecting plate 135 correspondingly with C frequency ranges electromagnetic horn.
In the example of Fig. 2 a, primary work(partial wave leads C1 and secondary work(partial wave leads the tree network that C2 constitutes a point four,
Power distribution will be carried out signal source all the way, be divided into four C frequency range shunting signs with width homophase.Linear array 133 includes four
The electromagnetic horn arranged successively, is respectively used to launch this four C frequency range shunting signs.Its E faces directional diagram as shown in Figure 2 b, H faces
Directional diagram is as shown in Figure 2 c.As can be seen from Figure, 18 ° of C-band h faces beam angle, 4.4 ° of e faces beam angle, gain can reach
To 23.9dB.
Fig. 1 is turned again to, the input of Ku frequency ranges power division network 152 connects input waveguide 151 to receive Ku frequency band signals,
Some outfans of Ku frequency ranges power division network 152 connect Ku frequency range electromagnetic horns correspondingly.Ku frequency ranges power division network 152 will
If Ku frequency band signals are divided into the shunting sign of main line same magnitude and phase place, launched by each Ku frequency range electromagnetic horn respectively
Ku frequency range shunting signs.In order to the amplitude for ensureing each shunting sign is consistent with phase place, Ku frequency ranges power division network 152 is preferably adopted
Tree network, and its input is identical to the Waveguide path length of any outfan.
Structural representations of Fig. 3 a for Ku band antennas 150.As shown in Figure 3 a, Ku frequency ranges power division network 152 is provided with one
Individual primary work(partial wave is led K1, two secondary work(partial waves and leads K2 and four three-level work(partial wave and lead K3, respectively with an input and
Two outfans.
Primary work(partial wave leads the input connection input waveguide 151 of K1, for receiving armed signal source.Primary work(point
Two outfans of waveguide K1 connect the input that two secondary work(partial waves lead K2 respectively.Two secondary work(partial waves lead four of K2
Outfan correspondence four three-level work(partial waves of connection lead the input of K3.
Eight outfans that four three-level work(partial waves lead K3 connect eight Ku frequency range electromagnetic horns correspondingly.These loudspeakers
Antenna rearranges aerial array along straight uniform.
In order to ensure stablizing for antenna structure, Ku band antennas 150 are additionally provided with Ku frequency ranges connecting plate 155, Ku frequency range work(
The outfan of subnetwork 152 is fixed on the both sides of Ku frequency ranges connecting plate 155 correspondingly with Ku frequency ranges electromagnetic horn.
In the example of Fig. 3 a, primary work(partial wave leads K1, secondary work(partial wave leads K2 and three-level work(partial wave is led K3 and constitutes one
Divide eight tree network, signal source will carry out power distribution all the way, and be divided into eight Ku frequency range shunting signs with width homophase.Straight line
Array 153 includes eight electromagnetic horns arranged successively, is respectively used to launch this eight Ku frequency range shunting signs.Its E faces direction
As shown in Figure 3 b, H faces directional diagram is as shown in Figure 3 c for figure.As can be seen from Figure, 18 ° of ku wave bands h faces beam angle, e faces wave beam
2 ° of width, gain can reach 27dB.
It is easy to understand, the varying number of electromagnetic horn in aerial array can be set, different beam patterns are obtained.For example,
A kind of Ku band antennas, including four Ku frequency range electromagnetic horns are provided in the example of fig. 4.Wherein the structure of power division network with figure
In 2a, the structure of one point four of power division network is identical, repeats no more.
The dual-band array antenna that the embodiment of the present invention be can be seen that by the structure chart of Fig. 2 a, Fig. 3 a and Fig. 4 saves electricity
Cable assembly and radio-frequency devices, have saved physical space, can realize Miniaturization Design.And ensure that using tree-shaped power division network
Transmission of wireless signals efficiency, it is ensured that the amplitude-phase consistency of multiple signals.
While it is disclosed that embodiment as above, but described content only to facilitate understand the present invention and adopt
Embodiment, is not limited to the present invention.Technical staff in any the technical field of the invention, without departing from this
On the premise of the disclosed spirit and scope of invention, any modification and change can be made in the formal and details implemented,
But the scope of patent protection of the present invention, still must be defined by the scope of which is defined in the appended claims.
Claims (8)
1. a kind of C/Ku dual-band array antennas, it is characterised in that including the C band antennas and Ku frequency ranges day that are set up in parallel in the same direction
Line；
The C band antennas include waveguide coaxial converter, C frequency ranges power division network and are made up of several C frequency range electromagnetic horns
Uniform linear array, if C frequency band signals to be divided into C frequency ranges power division network the shunting sign of main line same magnitude and phase place,
C frequency range shunting signs are launched respectively by each C frequency ranges electromagnetic horn；The C frequency ranges power division network is tree network, and which is defeated
The Waveguide path length for entering any outfan at end to the C frequency range power division networks is identical；
The Ku band antennas include input waveguide, Ku frequency ranges power division network and be made up of some Ku frequency ranges electromagnetic horns it is uniform
Linear array, if Ku frequency band signals to be divided into Ku frequency ranges power division network the shunting sign of main line same magnitude and phase place, passes through
Each Ku frequency ranges electromagnetic horn launches Ku frequency range shunting signs respectively；The Ku frequency ranges power division network is tree network, and which is defeated
Enter end identical to the Waveguide path length of any outfan of Ku frequency range power division networks；
Wherein, the waveguide coaxial converter and input waveguide are received with signal source all the way, and C frequency ranges electromagnetic horn constitute it is equal
The uniform linear array that even linear array is constituted with Ku frequency ranges electromagnetic horn be arranged in parallel.
2. array antenna as claimed in claim 1, it is characterised in that the input connection waveguide of the C frequency ranges power division network
To receive C frequency band signals, some outfans of the C frequency ranges power division network connect C frequency range loudspeakers to coaxial converter correspondingly
Antenna.
3. array antenna as claimed in claim 2, it is characterised in that the C band antennas are additionally provided with C frequency range connecting plates, C
The outfan of frequency range power division network is correspondingly arranged at the both sides of the C frequency ranges connecting plate with C frequency range electromagnetic horns.
4. array antenna as claimed in claim 1, it is characterised in that the input connection input of the Ku frequency ranges power division network
To receive Ku frequency band signals, some outfans of the Ku frequency ranges power division network connect Ku frequency range loudspeaker day correspondingly for waveguide
Line.
5. array antenna as claimed in claim 4, it is characterised in that the Ku band antennas are additionally provided with the connection of Ku frequency ranges
Plate, outfan and the Ku frequency range electromagnetic horns of Ku frequency range power division networks are correspondingly arranged at the both sides of the Ku frequency ranges connecting plate.
6. array antenna as claimed in claim 1, it is characterised in that the C frequency ranges power division network is provided with a primary work(
Partial wave is led and is led with two secondary work(partial waves, is respectively provided with an input and two outfans；
Two outfans that the primary work(partial wave is led connect the input that two secondary work(partial waves are led respectively.
7. array antenna as claimed in claim 1, it is characterised in that the Ku frequency ranges power division network is provided with a primary work(
Partial wave is led and is led with two secondary work(partial waves, is respectively provided with an input and two outfans；
Two outfans that the primary work(partial wave is led connect the input that two secondary work(partial waves are led respectively.
8. array antenna as claimed in claim 1, it is characterised in that the Ku frequency ranges power division network is provided with a primary work(
Partial wave is led, two secondary work(partial waves are led and led with four three-level work(partial waves, is respectively provided with an input and two outfans；
Two outfans that the primary work(partial wave is led connect the input that two secondary work(partial waves are led respectively；
Four outfans that described two secondary work(partial waves are led connect the input that four three-level work(partial waves are led.
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| CN201510634110.8A CN105226394B (en) | 2015-09-29 | 2015-09-29 | C/Ku dual-band array antenna |
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| CN201510634110.8A CN105226394B (en) | 2015-09-29 | 2015-09-29 | C/Ku dual-band array antenna |
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| CN105226394B true CN105226394B (en) | 2017-04-12 |
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| CN109217894A (en) * | 2018-09-26 | 2019-01-15 | 四川大学 | A kind of passive RF front end for satellite communication of metal 3 D-printing |
| WO2020200461A1 (en) * | 2019-04-04 | 2020-10-08 | Huawei Technologies Co., Ltd. | Composite artificial dielectrics and multiband antenna feeder |
| CN112946585B (en) * | 2019-12-11 | 2024-03-01 | 东莞天速通信技术有限公司 | Jammer and jammer method based on space power synthesis |
| CN113904128B (en) * | 2021-11-16 | 2023-04-14 | 中国电子科技集团公司第二十九研究所 | Millimeter wave frequency band rectangular horn antenna substructure and N-element antenna array |
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| AU2001295677A1 (en) * | 2000-10-12 | 2002-04-22 | Thomson Licensing S.A. | Improvements to transmission/reception sources of electromagnetic waves for multireflector antenna |
| CN2476108Y (en) * | 2001-04-25 | 2002-02-06 | 信息产业部电子第五十四研究所 | Antenna multifrequency channel common feed network device |
| CN201682056U (en) * | 2010-04-16 | 2010-12-22 | 西安欧赛通信科技有限公司 | Dual-frequency range satellite communication antenna system of common antenna surface |
| CN102176542B (en) * | 2011-01-18 | 2014-09-03 | 南京中网卫星通信股份有限公司 | Feed source device capable of realizing antenna C/Ku band switching and method thereof |
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