CN117293545A - Multi-body multi-band composite antenna with integrated conducting function - Google Patents
Multi-body multi-band composite antenna with integrated conducting function Download PDFInfo
- Publication number
- CN117293545A CN117293545A CN202310055059.XA CN202310055059A CN117293545A CN 117293545 A CN117293545 A CN 117293545A CN 202310055059 A CN202310055059 A CN 202310055059A CN 117293545 A CN117293545 A CN 117293545A
- Authority
- CN
- China
- Prior art keywords
- band
- antenna
- composite antenna
- band composite
- matching network
- 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.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 172
- 230000010287 polarization Effects 0.000 claims abstract description 57
- 238000002955 isolation Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000005855 radiation Effects 0.000 claims description 30
- 238000013461 design Methods 0.000 claims description 11
- 239000000523 sample Substances 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 42
- 238000010586 diagram Methods 0.000 description 27
- 238000004088 simulation Methods 0.000 description 14
- 239000010410 layer Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000013332 literature search Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/002—Protection against seismic waves, thermal radiation or other disturbances, e.g. nuclear explosion; Arrangements for improving the power handling capability of an antenna
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
- H01Q1/523—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas of an array
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
- H01Q1/525—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between emitting and receiving antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0428—Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The application provides a lead integrative multisystem multiband composite antenna, include: a plurality of antenna radiating elements for radiating and receiving radio electromagnetic energy to a space, the antenna radiating elements including an S-band composite antenna and an L-band composite antenna; the S frequency band matching network unit is connected with the S frequency band composite antenna and is used for feeding power to the S frequency band composite antenna; the S frequency band duplexer unit is electrically connected with the S frequency band matching network unit and is used for realizing the high isolation of the receiving and transmitting of the S frequency band composite antenna; and the L-band matching network unit is connected with the L-band composite antenna and is used for feeding power to the L-band composite antenna. According to the antenna combination and arrangement method, shielding of the top antenna to the bottom antenna is avoided, a circular polarization mode is adopted to provide a high gain angle, orthogonal equal-amplitude feeding is achieved through the feeding circuit of each frequency band, and the functions of middle-distance and long-distance short message communication and two-way voice communication based on Beidou and space communication are achieved.
Description
Technical Field
The application relates to the technical field of communication navigation, in particular to a communication and guide integrated multi-body multi-band composite antenna.
Background
The existing satellite communication and navigation equipment is of a single system, and is provided with a single system antenna, namely, the equipment only works in one frequency band, and the antenna frequency band is single, such as communication equipment and SART of VHF, 9GHz, GPS, beidou and other frequency bands; even if the frequency band is various, but use the frequency band different compared with this antenna, like "trinity" buoy antenna has integrated VHF, big dipper short message, 9GHz. With the development of satellite communication navigation technology, more and more satellite communication means can be suitable for long-distance communication, and the demand of a communication system for satellite communication capability is further expanded. Since satellite communication mostly adopts a circular polarization mode, a Wei Tongtian line radiation surface refers to the sky, and shielding which has no influence on antenna receiving and transmitting should be avoided above the antenna, so most of composite antennas simply and horizontally arrange a plurality of frequency band antennas, and the requirement that the tops of the frequency band antennas are not shielded is met. If the common stacked design is adopted, the top antenna can be shielded from the bottom antenna, so that the performance of the bottom antenna is reduced.
In the prior art, the development of the antenna just overcomes the influence of the top antenna on the shielding of the bottom antenna, multiplexes the top space, fully considers the requirements of installation elements, antenna performance, full duplex operation and the like, combines multi-band communication equipment, provides global positioning function based on the Beidou anti-interference system for the system, and is based on the Beidou and the communication of middle and long-distance short messages and two-way voice communication functions. Because the applicable satellite communication system needs, the antenna working under the system should meet the system requirements in the working frequency band and polarization mode.
Disclosure of Invention
The application provides a lead integrative multisystem multiband composite antenna to realize middle, long distance short message communication and two-way voice communication function based on big dipper, heaven are led to.
The embodiment of the application provides a lead integrative multisystem multiband composite antenna, includes:
the antenna radiation units are used for radiating and receiving radio electromagnetic energy to the space and comprise S-band composite antennas and L-band composite antennas which are sequentially arranged from top to bottom; the S-band composite antenna is a broadband double-circularly polarized antenna, and covers three required frequency bands, namely the broadband double-circularly polarized antenna; the L-band composite antenna is a dual-band dual-circularly polarized antenna, and covers two required frequency bands, namely the dual-band dual-circularly polarized antenna;
the S frequency band matching network unit is connected with the S frequency band composite antenna and is used for feeding power to the S frequency band composite antenna; the method comprises the steps that a rigid cable is used as a feeder line for connecting an S-band composite antenna and an S-band matching network, the S-band composite antenna and the S-band matching network conduct radio frequency signal transmission and balance conversion on S-band signals through the feeder line, and the feeder line is used for connecting two pairs of butterfly dipole antennas and fixing the S-band composite antenna on the upper portion of the L-band composite antenna;
the S frequency band duplexer unit is electrically connected with the S frequency band matching network unit and is used for realizing the high isolation of the receiving and transmitting of the S frequency band composite antenna;
the L-band matching network unit is connected with the L-band composite antenna and is used for feeding power to the L-band composite antenna; and carrying out double-probe feed on the L-band composite antenna by using the structural form of the double-layer microstrip patch antenna, and carrying out circular polarization passive feed on the L-band composite antenna by using the L-band matching network unit.
Further, the S-band composite antenna adopts a structural form of a crisscrossed butterfly dipole antenna.
Further, the S-band composite antenna comprises a radiation patch, wherein the radiation patch is composed of 4 radiation units, the middle of the radiation patch is hollowed out, and the two pairs of radiation units are opposite to each other to form two pairs of butterfly dipole antennas.
Further, the cross section of the radiating element is square.
Further, the L-band composite antenna adopts a structure form of a double-layer microstrip patch antenna.
Further, the L-band composite antenna is formed by stacking two layers of microstrip patch antennas with different thicknesses and diameters.
Further, the circularly polarized passive feed network adopts a broadband 90-degree bridge design.
Further, the L-band matching network unit is electrically connected with the 90-degree bridge and provides required dual-port orthogonal constant-amplitude feed so as to realize circular polarization.
Further, the S-band duplexer unit is located at an output end of the S-band matching network unit and is combined with the S-band composite antenna.
Further, a balun structure is further arranged between the S-band composite antenna and the S-band matching network unit, the balun structure penetrates through the L-band composite antenna, and the balun structure is electrically connected with the S-band matching network unit and the S-band composite antenna.
Compared with the prior art, the utility model provides a lead integrative multisystem multiband composite antenna, include: the antenna radiation units are used for radiating and receiving radio electromagnetic energy to the space and comprise S-band composite antennas and L-band composite antennas which are sequentially arranged from top to bottom; the S-band composite antenna is a broadband double-circularly polarized antenna, and covers three required frequency bands, namely the broadband double-circularly polarized antenna; the L-band composite antenna is a dual-band dual-circularly polarized antenna, and covers two required frequency bands, namely the dual-band dual-circularly polarized antenna; the S frequency band matching network unit is connected with the S frequency band composite antenna and is used for feeding power to the S frequency band composite antenna; the S frequency band duplexer unit is electrically connected with the S frequency band matching network unit and is used for realizing the high isolation of the receiving and transmitting of the S frequency band composite antenna; and the L-band matching network unit is connected with the L-band composite antenna and is used for feeding power to the L-band composite antenna. Through the mode, the shielding of the top antenna to the bottom antenna is effectively avoided by combining and arranging the antenna in the vertical space according to the radiation characteristics of each antenna, a better high-gain angle is provided by adopting a circular polarization mode, the feed circuit of each frequency band is redesigned, orthogonal constant-amplitude feed is realized to the two ports of the antenna, and the functions of middle-distance and long-distance short message communication and two-way voice communication based on Beidou and heaven-earth are finally realized.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a detailed schematic diagram of a structure of a multi-band composite antenna with integrated multi-system for communication and conduction according to an embodiment of the present application;
fig. 2 is a schematic diagram illustrating a structure of a multi-band composite antenna with integrated multi-system for communication and conduction according to an embodiment of the present application;
fig. 3 is an external schematic view of a multi-band composite antenna with integrated multi-system for communication and conduction according to an embodiment of the present application;
fig. 4 is a schematic top view of a multi-band composite antenna with integrated multi-system for conducting and guiding according to an embodiment of the present application;
fig. 5 is a schematic side view of a multi-band composite antenna with integrated multi-body system according to an embodiment of the present application;
fig. 6 is a schematic bottom view of a multi-band composite antenna with integrated multi-system for communication and conduction according to an embodiment of the present application;
fig. 7 is a schematic diagram of an S-band composite antenna simulation model according to an embodiment of the present application;
fig. 8 is a schematic diagram of an L-band composite antenna simulation model according to an embodiment of the present application;
fig. 9 is a schematic diagram of an L-band passive circular polarization feeding network according to an embodiment of the present application;
fig. 10 is a schematic diagram of an S-band passive duplexer provided in an embodiment of the present application;
fig. 11 is a schematic diagram of an S-band passive circular polarization feeding network according to an embodiment of the present application;
fig. 12 is a schematic diagram of a far-field pattern simulation curve (f=1980 MHz) of a top S-band composite antenna according to an embodiment of the present application;
fig. 13 is a schematic diagram of a far-field pattern simulation curve (f=2170 MHz) of a top S-band composite antenna according to an embodiment of the present application;
fig. 14 is a schematic diagram of a far-field pattern simulation curve (f=2491 MHz) of a top S-band composite antenna according to an embodiment of the present application;
fig. 15 is a schematic diagram of a bottom L-band composite antenna far-field pattern simulation curve (f=1268mhz) according to an embodiment of the present application;
fig. 16 is a schematic diagram of a bottom L-band composite antenna far-field pattern simulation curve (f=1616mhz) according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the described embodiments are some, but not all, examples of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
It is to be understood that the terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that, in order to clearly describe the technical solutions of the embodiments of the present application, in the examples of the present application, the words "first", "second", and the like are used to distinguish the same item or similar items having substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
The inventor finds that the prior art method has the signal receiving capability of L frequency bands and S frequency bands, but lacks the working frequency band corresponding to the Beidou broadband anti-interference receiving within the L frequency bands, belongs to a communication antenna, does not have the receiving capability of navigation signals, and belongs to a Beidou space-through dual-system four-frequency band composite antenna in technical aspect. At present, antennas of 2 sub-frequency bands in an S frequency band can be used independently to realize remote signal transmission or antennas of 3 sub-frequency bands in an L frequency band and an S frequency band are combined to realize global positioning and satellite communication functions. If the functions of the two antennas are required to be realized, the requirements of the working frequency bands, the radiation polarization and the working bandwidth of the 5 antenna radiating units must be met, in order to reduce the mutual interference, the antennas are required to be taken as a comprehensive consideration whole to avoid the influence of each antenna and each frequency band feed network, the composition and the mutual influence relationship among the antennas and the composition and the influence of each frequency band feed network must be fully considered, and no related report exists in the literature search. Therefore, the five-frequency-band antenna for realizing the three systems and the combined multiplexing method for realizing the antenna can meet the demands of communication and navigation service, can realize the global positioning function based on the Beidou anti-interference system by combining a plurality of satellite communication devices, and realize the functions of middle-distance and long-distance short message communication and two-way voice communication based on Beidou and Tiantong.
In order to solve the problems, the application provides a multi-system multi-band composite antenna with a plurality of integrated conductors.
Referring to fig. 1, fig. 1 is a detailed schematic diagram of a structure of a multi-band composite antenna with integrated multi-system for conducting and conducting according to an embodiment of the present application, where the multi-band composite antenna with integrated multi-system for conducting and conducting includes:
the antenna radiation units are used for radiating and receiving radio electromagnetic energy to space, and comprise S-band composite antennas (namely broadband double circularly polarized antennas) (namely crisscrossed butterfly dipole antennas at the top in fig. 1) and L-band composite antennas (namely double circularly polarized antennas) (namely double microstrip patch antennas at the bottom in fig. 1) which are sequentially arranged from top to bottom, wherein the S-band composite antennas cover three required frequency bands, namely 1980 MHz-2010 MHz &2170MHz & 2491.75+/-4.08 MHz, and the L-band composite antennas cover two required frequency bands, namely 1615.68 +/-5 MHz & 1268.52+/-10.23 MHz.
An S-band matching network unit (i.e., an S-band passive feed network in fig. 1) connected to the S-band composite antenna for feeding the S-band composite antenna; utilizing a rigid cable (namely an S-band feed balun in fig. 1) as a feeder line for connecting the S-band composite antenna and the S-band matching network, wherein the S-band composite antenna and the S-band matching network transmit radio frequency signals through the feeder line and perform balanced conversion on the S-band signals, and the feeder line is utilized to connect two pairs of butterfly dipole antennas and fix the S-band composite antenna on the upper part of the L-band composite antenna;
an S-band duplexer unit (i.e., an S-band passive duplexer in fig. 1) electrically connected to the S-band matching network unit, for implementing a high isolation of the transceiving of the S-band composite antenna;
an L-band matching network unit (i.e., an L-band passive feed network in fig. 1) connected to the L-band composite antenna for feeding the L-band composite antenna; and carrying out double-probe feed on the L-band composite antenna by using the structural form of the double-layer microstrip patch antenna, and carrying out circular polarization passive feed on the L-band composite antenna by using the L-band matching network unit.
In this embodiment, as shown in fig. 2, the structure of the disassembled conductive integrated multi-body multi-band composite antenna includes: the antenna comprises a mounting flange, an L-band circular polarization feed network, an S-band circular polarization feed network, a mounting upright post, an L-band double-probe feed, an L-band antenna radiation group, an S-band feed, a balun and an S-band antenna. The multi-band composite antenna (fig. 3-6 are respectively an appearance schematic diagram, a plan schematic diagram, a side view schematic diagram, and a bottom view schematic diagram of the multi-band composite antenna) comprises a plurality of antenna radiating units for radiating and receiving radio electromagnetic energy to space, wherein the antenna radiating units comprise two orthogonal S-band composite antennas (i.e. the S-band antenna in fig. 2, the S-band composite antenna simulation model schematic diagram in fig. 7) and L-band composite antennas (i.e. the L-band antenna radiation group in fig. 2, the L-band composite antenna simulation model schematic diagram in fig. 8) which are sequentially arranged from top to bottom; an L-band matching network unit (i.e., an L-band circular polarization feed network in fig. 2) electrically connected to the L-band composite antenna (i.e., implemented by using L-band dual-probe feed in fig. 2) for feeding the L-band composite antenna; the S-band matching network unit (namely an S-band circular polarization feed network in fig. 2) is electrically connected with the S-band composite antenna (namely realized by using S-band feed and balun in fig. 2) and is used for feeding the S-band composite antenna, and is electrically connected with the L-band circular polarization feed network (fig. 9 is an L-band passive circular polarization feed network schematic diagram, namely an electric bridge 1) to play a supporting role; an S-band duplexer unit (fig. 10 is a schematic diagram of an S-band passive duplexer, and as shown in fig. 10, the duplexer includes a high-frequency interface, a low-frequency interface, and a total interface) is electrically connected to an S-band circular polarization feed network (fig. 11 is a schematic diagram of an S-band passive circular polarization feed network, i.e. a bridge 2) for implementing a transceiving high isolation of an S-band composite antenna. Through carrying out the combination arrangement according to the radiation characteristics of each antenna in the vertical space for the electromagnetic radiation of each frequency channel antenna all is in the space direction that needs, can carry out the effective transmission and the receipt of each frequency channel signal, provides great open angle and gain, and the feed circuit of each frequency channel can accomplish the effective feed to each frequency channel, has guaranteed the standing wave index requirement of antenna, is used for receiving the wide band navigation signal of big dipper in the global scope, receives the communication signal of big dipper and the communication signal of heaven.
Further, the S-band composite antenna adopts a structural form of a crisscrossed butterfly dipole antenna.
In this embodiment, the S-band composite antenna is a dual-band antenna with left-hand circular polarization or right-hand circular polarization, and is located at the top of the overall antenna, and adopts a structural form of a crisscross butterfly dipole antenna, where circular polarizations of the L-band composite antenna and the S-band composite antenna are both the same and have opposite directions of rotation.
Further, the S-band composite antenna comprises a radiation patch, wherein the radiation patch is composed of 4 radiation units, the middle of the radiation patch is hollowed out, and the two pairs of radiation units are opposite to each other to form two pairs of butterfly dipole antennas.
In this embodiment, the S-band composite antenna is a crisscross butterfly dipole antenna, two pairs of dipoles are formed by two pairs of diagonal radiating elements, and a radiating structure of the crisscross butterfly dipole antenna adopts a radiating patch, and the middle is hollowed out.
Further, the cross section of the radiating element is square.
In this embodiment, the radiating structure of the crisscrossed butterfly dipole antenna adopts a square radiating patch.
Further, the L-band composite antenna adopts a structure form of a double-layer microstrip patch antenna.
In this embodiment, in order to implement dual-band operation characteristics, the L-band composite antenna adopts a structure of a dual-layer microstrip patch antenna. And meanwhile, the L-band matching network unit is matched with the circular polarization feed network by using double-probe feed, so that double frequency and double circular polarization can be realized at the same time.
Further, the L-band composite antenna is formed by stacking two layers of microstrip patch antennas with different thicknesses and diameters.
In this embodiment, the L-band composite antenna is a dual-frequency dual-circularly polarized antenna, and is located at the bottom of the integral antenna, and adopts a structural form of a multi-layer microstrip antenna
Further, the circularly polarized passive feed network adopts a broadband 90-degree bridge design.
In this embodiment, considering that the top antenna and the bottom antenna have wider operating frequency bands, each of which includes a plurality of operating frequency bands, and circular polarization directions of different frequency bands are different, a wideband 90-degree bridge is used as a circular polarization feeding network.
Further, the L-band matching network unit is electrically connected with the 90-degree bridge and provides required dual-port orthogonal constant-amplitude feed so as to realize circular polarization.
In this embodiment, the L-band passive matching network unit provides two orthogonal linear polarizations required by the L-band composite antenna circular polarization, and provides a required dual-port orthogonal constant-amplitude feed through electrical connection with the bridge, so as to realize the circular polarization. The L-band composite antenna and the S-band composite antenna respectively use a 90-degree bridge to realize left-handed and right-handed circular polarization through the phase lead and lag relation of the through and coupling ports.
Further, the S-band duplexer unit is located at an output end of the S-band matching network unit and is combined with the S-band composite antenna.
In the implementation, the S-band passive duplexer unit is positioned at the front end of the S-band matching network unit, and is combined with the antenna assembly to realize the high isolation required by the full duplex operation of the frequency band, thereby meeting the requirement of the synchronous operation of the guard, communication and receiving of the S-band.
Further, a balun structure is further arranged between the S-band composite antenna and the S-band matching network unit, the balun structure penetrates through the L-band composite antenna, and the balun structure is electrically connected with the S-band matching network unit and the S-band composite antenna.
In this embodiment, the cross butterfly dipole antenna of the S-band composite antenna uses a balun structure passing through the center of the L-band composite antenna for supporting and direct feeding.
In this embodiment, in order to achieve the purpose of solving the radiation needs of the L-band composite antenna and the S-band composite antenna and simultaneously considering the interference between the two bands, the two bands are comprehensively constructed and considered, the S-band matching network unit also has the balun structure function, the S-band matching network unit is electrically connected with the S-band circular polarization feed network, the L-band composite antenna is a dual-band dual-circular polarization antenna, and can respectively realize left-handed circular polarization and right-handed circular polarization in two working bands, which are located at the bottom of the multi-band antenna; the S-band composite antenna is a dual-polarized broadband antenna, and realizes multi-band and multi-circular polarization by being connected with a duplexer and a circular polarization feed network in a feed network. Wherein, the upper and lower frequency bands of the Tiantong are left-hand circular polarization, and the frequency band of the Beidou 2492 is right-hand circular polarization; the circular polarization rotation direction of the L-band composite antenna is opposite to that of the S-band composite antenna, the L-band composite antenna adopts a structural form of a multi-layer microstrip antenna and is realized by adopting a double-port feed and parasitic mode, and the dielectric constant of a dielectric plate used by the antenna is 2.65. The S-band composite antenna radiating body adopts a cross butterfly dipole antenna, the radiating body realizes dual polarization performance through the cross feed of two coaxial lines, in order to keep current balance, two coaxial lines are added to serve as a balun structure, and meanwhile, the S-band feed and the balun and the coaxial lines penetrate through the center of the L-band antenna, so that the S-band composite antenna is supported. Meanwhile, in order to solve the radiation bandwidth problem of the S-band composite antenna, a radiation structure of the cross butterfly dipole adopts the cross butterfly dipole as a radiation arm.
In this embodiment, in order to achieve the purpose of solving the circular polarization radiation characteristics of the L-band and the S-band, the L-band matching network unit is configured to provide dual-port orthogonal equal-amplitude feed required by circular polarization of the L-band composite antenna, and the S-band matching network unit is configured to provide dual-port orthogonal equal-amplitude feed required by circular polarization of the S-band composite antenna, and to implement the left-handed and right-handed circular polarization characteristics of the L-band composite antenna and the S-band composite antenna by using 90-degree bridges through the phase lead and lag relationships of the through and coupling ports, respectively.
In this embodiment, there is also provided a method for implementing a combination multiplexing of a multi-band composite antenna with integrated multi-body system, including:
1. the L-band composite antenna is a right-hand circularly polarized antenna or a left-hand circularly polarized antenna which is positioned at the bottom of the integral antenna, and adopts the structural form of a multi-layer microstrip antenna; the S frequency band composite antenna is a double-circularly polarized broadband antenna, covers a plurality of available frequency bands, achieves the functions of frequency division and direction division through a feed network, is located at the top of the whole antenna, adopts a pair of horizontally placed crossed butterfly-shaped dipole antenna structural forms, and avoids the influence of shielding of the top antenna on the bottom antenna while guaranteeing the S frequency band communication capability. The antenna is of a planar printing structure, the height is about 36mm, the diameter of the floor is 90mm, the dielectric plate is 55mm multiplied by 55mm, the radiation patch is composed of 4 square radiation units with the length of 25mm multiplied by 25mm, two pairs of diagonal radiation units form two pairs of dipoles, the patch distance is 0.5mm after parameter optimization, the S frequency band composite antenna is hollowed out in the middle, and shielding brought to the bottom L frequency band composite antenna is avoided.
2. The L-band passive matching network is redesigned, two orthogonal linear polarizations are realized through probe feeding, and then double-port orthogonal constant-amplitude feeding required by the circular polarization of the L-band composite antenna is provided through electric connection with a designed electric bridge. Considering that the bottom antenna needs to meet a wider working frequency band, comprises a plurality of working frequency bands, and circular polarization rotation directions of different frequency bands are also different, a Lange coupler is adopted for the purpose, and the mode is a circular polarization feed network. The feed network is manufactured by adopting a planar printed circuit board process, has the performance characteristics of miniaturization, wide bandwidth and small insertion loss, is simple in structure, easy to process and integrate, realizes matching by a passive technology, and avoids the influence of thermal noise on the performance of an antenna.
3. The S-band passive matching network is redesigned, two orthogonal linear polarizations are realized through cross feeding, double-port orthogonal constant-amplitude feeding required by the circular polarization of the S-band composite antenna is provided through electric connection with a designed bridge, and the corresponding S-band bridge is designed to serve as a circular polarization feeding network. The L-band composite antenna and the S-band composite antenna respectively use a 90-degree bridge to realize left-handed and right-handed circular polarization through the phase lead and lag relation of the through and coupling ports.
And the S frequency band passive duplexer unit is positioned at the rear end of the S frequency band matching network unit and is combined with the antenna assembly to realize the high isolation required by the full duplex operation of the frequency band. The antenna duplexer comprises three ports, namely a total port, a low-frequency port and a high-frequency port. The main port is connected with the heaven port of the S-band bridge, the low-band port and the high-frequency port realize the separation of the frequency bands of 1980 MHz-2010 MHz and 2170 MHz-2200 MHz, and the antenna is manufactured by adopting a planar printed circuit board process and has the advantages of simple structure, easy processing and easy integration.
Therefore, in this embodiment, by arranging the three system five frequency band antennas (fig. 12-16 are respectively schematic diagrams of far field pattern simulation curves (f=1980 MHz) of top S frequency band composite antennas, schematic diagrams of far field pattern simulation curves (f=2170 MHz) of top S frequency band composite antennas, schematic diagrams of far field pattern simulation curves (f=2491 MHz) of top S frequency band composite antennas, schematic diagrams of far field pattern simulation curves (f=1268 MHz) of bottom L frequency band composite antennas, schematic diagrams of far field pattern simulation curves (f=1616 MHz) of bottom L frequency band composite antennas) in the required spatial direction according to the radiation characteristics of each antenna in the vertical space, the top antennas effectively avoid shielding of the bottom antennas while increasing wideband working frequency bands, a circular polarization mode is adopted for communication systems conforming to signals of each frequency band, a better high gain angle is provided, and a new circular polarization electric network adopts a circuit form of a Lange coupler (bridge), and the bridge can realize isolation, low-frequency band, high-frequency band loss, high-phase loss, and realization of the antenna can realize multiple-width-channel communication based on the antenna, and the realization of multiple-band antenna orthogonal feed system, and the realization of the antenna can realize the communication system with multiple antenna types.
The technology comprises a combined design technology of a plurality of radiation units required by Beidou satellite communication and Tiantong satellite communication and navigation working frequency points; the design technology of the L-band matching network unit realizes the feeding of two sub-bands at the port in the L-band through the novel passive bridge design; the S frequency band matching network unit design technology realizes the feeding of two sub-frequency bands at ports in the S frequency band through the novel passive bridge design; the five-frequency-band double-rotation double-circular polarization feed network design technology realizes the adaptation of the antenna to various satellite communication systems; the design technology of the passive duplexer realizes the low-noise and low-insertion-loss duplexer, and can realize the simultaneous receiving and transmitting of radio frequency signals with five frequency bands, large open angles, high gain and high bandwidth in a small physical space, thereby meeting the requirements of simultaneous operation of various satellite communication and navigation systems.
While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the invention. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a lead integrative multisystem multiband composite antenna, its characterized in that, lead integrative multisystem multiband composite antenna includes:
the antenna radiation units are used for radiating and receiving radio electromagnetic energy to the space and comprise S-band composite antennas and L-band composite antennas which are sequentially arranged from top to bottom; the S-band composite antenna is a broadband double-circularly polarized antenna, and covers three required frequency bands, namely the broadband double-circularly polarized antenna; the L-band composite antenna is a dual-band dual-circularly polarized antenna, and covers two required frequency bands, namely the dual-band dual-circularly polarized antenna;
the S frequency band matching network unit is connected with the S frequency band composite antenna and is used for feeding power to the S frequency band composite antenna; the method comprises the steps that a rigid cable is used as a feeder line for connecting an S-band composite antenna and an S-band matching network, the S-band composite antenna and the S-band matching network conduct radio frequency signal transmission and balance conversion on S-band signals through the feeder line, and the feeder line is used for connecting two pairs of butterfly dipole antennas and fixing the S-band composite antenna on the upper portion of the L-band composite antenna;
the S frequency band duplexer unit is electrically connected with the S frequency band matching network unit and is used for realizing the high isolation of the receiving and transmitting of the S frequency band composite antenna;
the L-band matching network unit is connected with the L-band composite antenna and is used for feeding power to the L-band composite antenna; and carrying out double-probe feed on the L-band composite antenna by using the structural form of the double-layer microstrip patch antenna, and carrying out circular polarization passive feed on the L-band composite antenna by using the L-band matching network unit.
2. The integrated multi-system multi-band composite antenna according to claim 1, wherein the S-band composite antenna adopts a cross butterfly dipole antenna structure.
3. The multi-band composite antenna of claim 2, wherein the S-band composite antenna comprises a radiating patch, the radiating patch comprises 4 radiating elements, the middle is hollowed out, and the radiating elements of two pairs of angles form two pairs of butterfly dipole antennas.
4. A conductive integrated multi-body multi-band composite antenna according to claim 3, wherein the radiating element has a square cross section.
5. The integrated multi-system multi-band composite antenna according to claim 1, wherein the L-band composite antenna adopts a structure form of a double-layer microstrip patch antenna.
6. The integrated multi-system multi-band composite antenna of claim 5, wherein the L-band composite antenna is formed by stacking two layers of microstrip patch antennas with different thicknesses and diameters.
7. The all-in-one multi-body multi-band composite antenna of claim 1, wherein the circularly polarized passive feed network is a wideband 90 degree bridge design.
8. The conductive integrated multi-body multi-band composite antenna of claim 7, wherein the L-band matching network element is electrically connected to the 90-degree bridge and provides the required dual-port orthogonal constant-amplitude feed to achieve circular polarization.
9. The integrated multi-system multi-band composite antenna of claim 1, wherein the S-band diplexer unit is located at an output end of the S-band matching network unit and combined with the S-band composite antenna.
10. The multi-band composite antenna of the integrated multi-body system of claim 1, wherein a balun structure is further arranged between the S-band composite antenna and the S-band matching network unit, the balun structure is arranged in the L-band composite antenna in a penetrating manner, and the balun structure is electrically connected with the S-band matching network unit and the S-band composite antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310055059.XA CN117293545A (en) | 2023-02-03 | 2023-02-03 | Multi-body multi-band composite antenna with integrated conducting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310055059.XA CN117293545A (en) | 2023-02-03 | 2023-02-03 | Multi-body multi-band composite antenna with integrated conducting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117293545A true CN117293545A (en) | 2023-12-26 |
Family
ID=89257724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310055059.XA Pending CN117293545A (en) | 2023-02-03 | 2023-02-03 | Multi-body multi-band composite antenna with integrated conducting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117293545A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117254263A (en) * | 2023-02-03 | 2023-12-19 | 苏州市江海通讯发展实业有限公司 | Multi-body multi-band composite antenna with integrated conducting function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2919563Y (en) * | 2006-02-20 | 2007-07-04 | 西安海天天线科技股份有限公司 | Triple-frequency broad circular polarized antenna |
| CN105811121A (en) * | 2016-04-27 | 2016-07-27 | 苏州市江海通讯发展实业有限公司 | Multi-band antenna and combination and multiplexing method for implementing antenna |
| CN211126050U (en) * | 2019-12-31 | 2020-07-28 | 华南理工大学 | Compact high-isolation dual-frequency and dual-polarization filtering antenna |
| WO2022012023A1 (en) * | 2020-07-17 | 2022-01-20 | 摩比天线技术（深圳）有限公司 | Low-frequency radiation unit and base station antenna |
| CN114883797A (en) * | 2022-04-22 | 2022-08-09 | 北京邮电大学 | Dual-frequency dual-polarized antenna unit, sub-array phase shifting module and phased array antenna array |
| CN117254263A (en) * | 2023-02-03 | 2023-12-19 | 苏州市江海通讯发展实业有限公司 | Multi-body multi-band composite antenna with integrated conducting function |
-
2023
- 2023-02-03 CN CN202310055059.XA patent/CN117293545A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2919563Y (en) * | 2006-02-20 | 2007-07-04 | 西安海天天线科技股份有限公司 | Triple-frequency broad circular polarized antenna |
| CN105811121A (en) * | 2016-04-27 | 2016-07-27 | 苏州市江海通讯发展实业有限公司 | Multi-band antenna and combination and multiplexing method for implementing antenna |
| CN211126050U (en) * | 2019-12-31 | 2020-07-28 | 华南理工大学 | Compact high-isolation dual-frequency and dual-polarization filtering antenna |
| WO2022012023A1 (en) * | 2020-07-17 | 2022-01-20 | 摩比天线技术（深圳）有限公司 | Low-frequency radiation unit and base station antenna |
| CN114883797A (en) * | 2022-04-22 | 2022-08-09 | 北京邮电大学 | Dual-frequency dual-polarized antenna unit, sub-array phase shifting module and phased array antenna array |
| CN117254263A (en) * | 2023-02-03 | 2023-12-19 | 苏州市江海通讯发展实业有限公司 | Multi-body multi-band composite antenna with integrated conducting function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117254263A (en) * | 2023-02-03 | 2023-12-19 | 苏州市江海通讯发展实业有限公司 | Multi-body multi-band composite antenna with integrated conducting function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10847902B2 (en) | Enhanced phase shifter circuit to reduce RF cables | |
| US8350771B1 (en) | Dual-band dual-orthogonal-polarization antenna element | |
| CN101110499B (en) | Antenna apparatus of BGAN system portable terminal | |
| WO2016004001A1 (en) | Systems and methods for polarization control | |
| US10038235B2 (en) | Multi-mode, multi-band antenna | |
| WO2009137302A4 (en) | Single cable antenna module for laptop computer and mobile devices | |
| CN102842756B (en) | Dual-polarization MIMO (Multiple Input Multiple Output) antenna array | |
| US20120081259A1 (en) | Inverted-U Crossed-Dipole Satcom Antenna | |
| CN117254263A (en) | Multi-body multi-band composite antenna with integrated conducting function | |
| CN117293545A (en) | Multi-body multi-band composite antenna with integrated conducting function | |
| CN211320349U (en) | Dual-frequency dual-circular polarization array antenna unit | |
| WO2019172981A1 (en) | Compact multiband feed for small cell base station antennas | |
| CN210040568U (en) | Single-layer coaxial feed dual-polarization microstrip array antenna | |
| Greco et al. | A dual-band, dual-polarized array element for Ka band satcom on the move terminals | |
| CN105811121B (en) | A kind of multiband aerial and the combination multiplexing method for realizing the antenna | |
| CN103474787B (en) | Dual-polarized planar array satellite TV receiving antenna | |
| WO2018120593A1 (en) | Dual-frequency, broadband, circularly polarized patch antenna | |
| CN217363071U (en) | Dual-circularly-polarized antenna radio frequency receiving front end capable of polarization switching | |
| CN114709627B (en) | Multi-band configurable receiving antenna | |
| CN216354792U (en) | Ka-band high-isolation double-circularly-polarized antenna unit and array | |
| CN113113762B (en) | Dual-frequency dual-polarization common-aperture base station antenna and mobile communication system | |
| CN115882223A (en) | Dual-band dual-circularly polarized antenna and antenna system | |
| Yang et al. | A planar passive dual band array feed antenna for Ku band satellite communication terminals | |
| CN116368687A (en) | Antenna sub-array and base station antenna | |
| CN113078457A (en) | Double-frequency double-fed high-gain antenna and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |