CN110911834A - Phased array antenna capable of realizing left-right rotation circular polarization switching - Google Patents
Phased array antenna capable of realizing left-right rotation circular polarization switching Download PDFInfo
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- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H01Q15/24—Polarising devices; Polarisation filters
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- H—ELECTRICITY
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- H01Q21/00—Antenna arrays or systems
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Abstract
The application relates to the field of phased array antennas, in particular to a phased array antenna capable of realizing left-right rotation circular polarization switching, which comprises N2X 2 TR sub-arrays, wherein each TR sub-array comprises 4 phased array antenna radiation units, and the number of TR channels of each TR sub-array is 1X 4; each phased array antenna radiating element comprises a patch and a feed point A located on the patch, and each phased array antenna radiating element is a single feed point. This application only uses the phased array antenna equipment of one set of this scheme, can realize needing the function that 2 sets of phased array antenna equipment possessed in the past, like left and right-handed polarization switch, very big reduction cost, structure size to and avoided using the parasitic effect that the active device produced. The method is mainly realized by combining an n-in-1 multifunctional chip and a phased array antenna layout.
Description
Technical Field
The application relates to the field of phased array antennas, in particular to a phased array antenna capable of achieving left-right rotation circular polarization switching.
Background
The phased array antenna is an array antenna formed by a plurality of antenna element arrays, and beam scanning and beam forming are realized by adjusting the feeding phase of each antenna element. The device has the advantages of small volume, light weight, easy formation of multiple beams, capability of realizing the pointing of antenna beams and the rapid change of beam shapes, capability of realizing the adjustment of communication capacity among the beams and the like, and has the capability of stably tracking a plurality of high-speed moving targets; in addition, the phased array antenna can also realize the synthesis of signal power in space, thereby obtaining the antenna with larger EIRP (isotropic equivalent radiated power), which provides technical potential for increasing the system acting distance, improving the system measurement accuracy and observing various low observable targets including stealth targets. Due to the advantages, the phased array antenna technology becomes a key technology which is developed rapidly in the radar and communication system in recent years.
In the current technical scheme, a polarization design is partially adopted, and once the design is finished, the polarization of an antenna cannot be changed; and partially adopting a polarization variable scheme, such as using a controllable diode technology, controlling the conduction and the open circuit of a diode through a direct current bias voltage, and changing the current distribution of the antenna so as to realize the reconstruction of polarization, a directional diagram or frequency. In addition, the polarization angle rotation of the circularly polarized radiation unit is realized by adopting motor control to realize left-right rotation reconstruction.
In the variable polarization scheme, the former would increase the loss, and some parasitic effects introduced by the diode, while also increasing the cost of the antenna; the latter will increase the profile height of the antenna, and the complexity.
Disclosure of Invention
To the above-mentioned not enough in the prior art, this application provides one kind with low costs, occupation space is little, can realize the multi-functional phased array antenna of arbitrary polarization switching.
In order to achieve the technical effects, the technical scheme of the application is as follows:
the utility model provides a can realize controlling phased array antenna that circle polarization switches which characterized in that: the antenna comprises N2 x 2 TR sub-arrays, each TR sub-array comprises 4 phased array antenna radiation units, and the number of TR channels of each TR sub-array is 1 x 4; each phased array antenna radiating element comprises a patch and a feed point A located on the patch, and each phased array antenna radiating element is fed by a single feed point.
Further, the structure of the TR subarray is tile type or brick type.
Furthermore, the transceiver channel module of each TR subarray includes 4 transceiver channels; each receiving and transmitting channel module comprises a receiving and transmitting amplification multifunctional circuit, an attenuation phase-shifting amplification multifunctional circuit, a power supply control circuit, a wave control circuit and a power divider; the receiving and transmitting amplification multifunctional circuit realizes the functions of power amplification of a transmitting signal, low-noise amplification of a receiving signal and receiving and transmitting switching; the attenuation phase-shift amplification multifunctional circuit realizes attenuation, phase-shift control and signal amplification of the component; the wave control circuit converts high-speed serial data sent by the wave control machine into parallel control codes to control the attenuation phase-shifting circuit; the power supply control circuit realizes that the channel receiving power supply and the transmitting power supply are independently controllable; the power divider realizes power division or synthesis of channel signals; the amplitude and the phase of the multifunctional chip are changed by controlling the phase shifting, attenuating and amplifying functions of the multifunctional chip, so that the change of the polarization mode is realized.
Furthermore, the transceiving channel module of each TR subarray comprises 1 four-in-one multifunctional integrated SOC chip or a half eight-in-one multifunctional integrated SOC chip, 4 TR transceiving chips are respectively driven, and amplitude phase control, transceiving power control and working mode switching are achieved through the wave control board.
Specifically, the transceiver channel module is a radio frequency integrated board, and comprises a multi-channel multifunctional integrated SOC chip, a radio frequency channel feed network, a control and power supply feed line network, the radio frequency integrated board is designed by a plurality of microwave boards, the plurality of microwave boards are in a radio frequency integrated board and FR4 mixed-pressure structure, the radio frequency channel feed network, the control and power supply feed line network are integrated, and the multifunctional integrated SOC chip and the plurality of microwave boards are interconnected in a gold wire bonding mode.
Furthermore, all the area blocks of the TR channel module are controlled in parallel, and 4 channels of each area are read and written in series; the whole TR channel module shares a clock signal, a chip selection signal, a latch signal and a receiving and transmitting switch signal, and control data of each channel adopts a parallel receiving and transmitting mode, so that high-speed phase and amplitude control and working state control on a multifunctional chip of each channel are realized.
Furthermore, the polarized wave of the phased array antenna which correspondingly works comprises left-hand circular polarization, right-hand circular polarization, left-hand elliptical polarization and right-hand elliptical polarization.
Furthermore, the phased array antenna is in a rectangular grid arrangement or a triangular grid arrangement, and the like.
Furthermore, the position relationship among the sub-arrays is a rotation relationship or translation and mirror image relationship; the sub-array surface radiation units are square, circular, triangular, hexagonal and the like.
Further, the single feed excites the radiating element and finally outputs a feed interface connected with the TR channel.
The phased array antenna radiation unit and the feed point are placed in a rotating mode, a non-vertical mode or a horizontal mode according to any included angle.
The working principle of this application does:
during transmitting, signals are input to the N sub-arrays through a common port, specifically, the signals are divided into N paths through a 1-N power division network and the like, are respectively input to each multifunctional integrated SOC chip, are divided into 4 paths through the multifunctional integrated SOC chip and the like (if the SOC multifunctional chip is 4-in-1), are transmitted to a TR transceiver chip for power amplification, and are finally output to an antenna port.
During receiving, signals are input from an antenna port, are input into the multifunctional integrated SOC chip after being amplified by low noise of the TR transceiver chip, are subjected to driving amplification, phase shifting and attenuation, are combined into 4 paths through the N paths, are output from the SMP main port, are combined into 4 paths on the subarray, and are output from the main port of the subarray.
The invention has the beneficial effects that:
1. this application only uses the phased array antenna equipment of one set of this scheme, can realize needing in the past that 2 sets of phased array antenna equipment possessed function (left and right-handed polarization switch), very big reduction cost, structure size to and avoided using the parasitic effect that active device produced. The method is mainly realized by combining an n-in-1 multifunctional chip (at least 4-in-1, 8-in-one and the like) with a phased array antenna layout (such as a single feed point).
2. The phased array antenna capable of switching left-handed circular polarization and right-handed circular polarization is convenient to use, short in polarization switching time, small in size and low in loss compared with the existing phased array antenna which needs to prepare different polarized antennas respectively and independently.
3. The utility model provides a control phased array antenna that circular polarization switches revolves about, 4 radiating element homogeneous phases in the subarray, square radiation paster is 45 degrees edges and corners with the unit center and places, and placing between the unit is the rotation relation among the subarray, and the rotation number of degrees is 90 degrees, and such relation of putting can make phased array antenna keep left and right circular polarization's performance unanimous almost, and phi = 45's section scanning effect is better simultaneously.
4. The phased array antenna with left-right-handed circular polarization switching does not need to add other electronic devices on a radiating unit or a feed network of the phased array antenna, can work in different polarization modes only by electronically controlling the phase of the phase shifter, and has the advantages of small loss and stable use compared with the conventional phased array antenna needing to add a PIN switch, a variable capacitance diode and the like, and the performance of the antenna unit is not influenced due to the fact that the electronic devices bring capacitance and inductance effects.
5. The mode that this application multi-functional CMOS chip and gallium arsenide TR chip combined together not only utilizes the GaAs technology to obtain better power and noise performance, utilizes the high characteristics of silica-based technology integrated level to realize moving looks ware and attenuator miniaturized, the design of integration again, but silica-based chip internal integration digital control circuit in addition, control interface adopts serial signal control to shift the phase and the attenuation state to reduce external circuit's design complexity and size, make the integrated level of radio frequency channel improve greatly.
Drawings
Fig. 1 is a schematic diagram of a rectangular array of 8 × 8=64 array elements according to the present invention.
Fig. 2 is a schematic diagram of the placement of the radiation elements in the 64-array element subarray according to the present invention.
Fig. 3 is a phase matching layout of a phased array antenna of the present invention, incorporating phase shifters and attenuators.
FIG. 4 is a table of phase compensation for right hand circular polarization synthesis for phased array antennas in accordance with the present invention.
Fig. 5 is a scanning pattern for right hand circular polarization synthesis by the phased array antenna of the present invention.
FIG. 6 is a table of phase compensation for synthesizing left-hand circular polarization for a phased array antenna according to the present invention.
Fig. 7 is a scanning pattern of the phased array antenna of the present invention when synthesizing left-hand circular polarization.
Fig. 5 and 7 and further verified by full-wave simulation of three-dimensional software as follows, scan verification is performed with a 0 ° section:
the middle abscissa is the angle and the ordinate is the normalized gain.
Detailed Description
Example 1
A phased array antenna capable of realizing left-right rotation circular polarization switching comprises N2 x 2 TR sub-arrays, each TR sub-array comprises 4 phased array antenna radiation units, and the number of TR channels of each TR sub-array is 1 x 4; each phased array antenna radiating element comprises a patch and a feed point A located on the patch, and each phased array antenna radiating element is fed by a single feed point. The TR subarray is in a tile type or brick type structure;
the phased array antenna radiation unit and the feed point are placed in a rotating mode, a non-vertical mode or a horizontal mode according to any included angle.
The TR subarrays are in tile type or brick type structures. The transceiving channel module of each TR subarray comprises 4 transceiving channels; each receiving and transmitting channel module comprises a receiving and transmitting amplification multifunctional circuit, an attenuation phase-shifting amplification multifunctional circuit, a power supply control circuit, a wave control circuit and a power divider; the receiving and transmitting amplification multifunctional circuit realizes the functions of power amplification of a transmitting signal, low-noise amplification of a receiving signal and receiving and transmitting switching; the attenuation phase-shift amplification multifunctional circuit realizes attenuation, phase-shift control and signal amplification of the component; the wave control circuit converts high-speed serial data sent by the wave control machine into parallel control codes to control the attenuation phase-shifting circuit; the power supply control circuit realizes that the channel receiving power supply and the transmitting power supply are independently controllable; the power divider realizes power division or synthesis of channel signals; the amplitude and the phase of the multifunctional chip are changed by controlling the phase shifting, attenuating and amplifying functions of the multifunctional chip, so that the change of the polarization mode is realized.
The receiving and dispatching channel module of each TR subarray comprises 1 four-in-one multifunctional integrated SOC chip or a half eight-in-one multifunctional integrated SOC chip, 4 TR receiving and dispatching chips are respectively driven, and amplitude phase control, receiving and dispatching power supply control and working mode switching are achieved through a wave control board.
Specifically, the transceiver channel module is a radio frequency integrated board, and comprises a multi-channel multifunctional integrated SOC chip, a radio frequency channel feed network, a control and power supply feed line network, the radio frequency integrated board is designed by a plurality of microwave boards, the plurality of microwave boards are in a radio frequency integrated board and FR4 mixed-pressure structure, the radio frequency channel feed network, the control and power supply feed line network are integrated, and the multifunctional integrated SOC chip and the plurality of microwave boards are interconnected in a gold wire bonding mode.
All the area blocks of the TR channel module are controlled in parallel, and 4 channels of each area are read and written in series; the whole TR channel module shares a clock signal, a chip selection signal, a latch signal and a receiving and transmitting switch signal, and control data of each channel adopts a parallel receiving and transmitting mode, so that high-speed phase and amplitude control and working state control on a multifunctional chip of each channel are realized.
The polarized waves of the phased array antenna which correspondingly works comprise left-hand circular polarization, right-hand circular polarization, left-hand elliptical polarization and right-hand elliptical polarization.
The phased array antenna is rectangular grid array or triangular grid array.
The position relation among the subarrays is a rotation relation or a translation and mirror image relation; the sub-array surface radiation units are square, circular, triangular, hexagonal and the like.
The single feed point excites the radiating element and finally outputs a feed interface which is connected with the TR channel.
During transmitting, signals are input to the N sub-arrays through a common port, specifically, the signals are divided into N paths through a 1-N power division network and the like, are respectively input to each multifunctional integrated SOC chip, are divided into 4 paths through the multifunctional integrated SOC chip and the like (if the SOC multifunctional chip is 4-in-1), are transmitted to a TR transceiver chip for power amplification, and are finally output to an antenna port.
During receiving, signals are input from an antenna port, are input into the multifunctional integrated SOC chip after being amplified by low noise of the TR transceiver chip, are subjected to driving amplification, phase shifting and attenuation, are combined into 4 paths through the N paths, are output from the SMP main port, are combined into 4 paths on the subarray, and are output from the main port of the subarray.
Example 2
The utility model provides a realize phased array antenna of left and right sides circular polarization switching, includes TR passageway module, and the TR passageway module adopts CMOS multifunctional chip and the mode that combines together with the gallium arsenide chip, and phased array radiating element uses single feed point excitation, connects a phase shifter behind every feed point, therefore a phased array antenna radiating element corresponds 1 TR passageway to four radiating elements are a TR subarray, and every TR subarray passageway number is 4 x 1, totally 4 passageways. The GaAs TR chip mainly completes the functions of polarization switching, transceiving switching, low-noise amplification of a receiving link and power amplification of a transmitting link, and therefore the GaAs TR chip is composed of a switch, a low-noise amplifier and a power amplifier. The silicon-based multifunctional chip mainly completes the functions of phase shifting, attenuating and amplifying signals, and therefore the silicon-based multifunctional chip is composed of an amplifier, an attenuator, a phase shifter, a digital control circuit, a power supply control circuit and the like. By adopting the technical scheme, the miniaturization and integration design of the phase shifter and the attenuator is realized by utilizing the characteristic of high integration level of the silicon-based process while the GaAs process is utilized to obtain better power and noise performance, in addition, a digital control circuit can be integrated in the silicon-based chip, and a control interface adopts serial signals to control the phase shifting and attenuation states, thereby reducing the design complexity and size of an external circuit.
The TR channel module comprises; and each receiving and transmitting channel module comprises a receiving and transmitting amplification multifunctional circuit, an attenuation phase-shifting amplification multifunctional circuit, a power supply control circuit, a wave control circuit and a power divider network. The receiving and transmitting amplification multifunctional circuit realizes the functions of power amplification of a transmitting signal, low-noise amplification of a receiving signal and receiving and transmitting switching; the attenuation phase-shift amplification multifunctional circuit realizes attenuation, phase-shift control and signal amplification of the component; the wave control circuit converts high-speed serial data sent by the wave control machine into parallel control codes to control the attenuation phase-shifting circuit; the power supply control circuit realizes that the channel receiving power supply and the transmitting power supply are independently controllable; the power divider realizes power division or synthesis of channel signals.
The TR channel module is a radio frequency integrated board and comprises a multi-channel multifunctional integrated SOC chip, a radio frequency channel feed network, a control and power supply feed line network, the radio frequency integrated board is designed by a plurality of microwave boards, the plurality of microwave boards are of a radio frequency integrated board and FR4 mixed-voltage structure, the radio frequency channel feed network, the control and power supply feed line network are integrated, and the multifunctional integrated SOC chip and the plurality of microwave boards are interconnected in a gold wire bonding or ball bonding mode.
The receiving and dispatching channel module comprises N multifunctional integrated SOC chips, N4 TR receiving and dispatching chips are respectively driven (if the SOC multifunctional chips are 4-in-1), amplitude phase control, receiving and dispatching power supply control and working mode switching are realized by a wave control daughter board, each channel comprises a final-stage power amplifier, receiving low-noise amplifier, receiving and dispatching driving amplifier, receiving and dispatching phase shift, receiving attenuation, a receiving and dispatching switch and a mode switching switch function, wherein the TR receiving and dispatching chips are integrated with the final-stage power amplifiers, the receiving low-noise amplifiers, the receiving and dispatching switch and the mode selection switch, the multifunctional integrated SOC chips are integrated with the receiving and dispatching phase shift, the receiving attenuation, the receiving and dispatching switch and the receiving and dispatching driving amplifier.
During transmitting, signals are input to the N sub-arrays through a common port, specifically, the signals are divided into N paths through a 1-N power division network and the like, are respectively input to each multifunctional integrated SOC chip, are divided into 4 paths through the multifunctional integrated SOC chip and the like (if the SOC multifunctional chip is 4-in-1), are transmitted to a TR transceiver chip for power amplification, and are finally output to an antenna port.
During receiving, signals are input from an antenna port, are input into the multifunctional integrated SOC chip after being amplified by low noise of the TR transceiver chip, are subjected to driving amplification, phase shifting and attenuation, are combined into 4 paths through the N paths, are output from the SMP main port, are combined into 4 paths on the subarray, and are output from the main port of the subarray.
The control module receives a wave control command from a superior motherboard, completes wave control command analysis, and reads and writes the amplitude and the phase of the multifunctional chip through an SPI protocol. In such a working mode, the TR module includes 4 multifunctional integrated SOC chip areas, each area block controls in parallel, and 4 channels of each area read and write in series. Thus, the wave control instruction can be executed quickly.
The whole TR channel module shares a clock signal, a chip selection signal, a latch signal and a receiving and transmitting switch signal, and control data of each channel adopts a parallel receiving and transmitting mode, so that high-speed phase and amplitude control and working state control on a multifunctional chip of each channel are realized.
The polarized wave of the phased array antenna which correspondingly works comprises left-hand circular polarization, right-hand circular polarization, left-hand elliptical polarization and right-hand elliptical polarization.
The phased array antenna which correspondingly works comprises a rectangular grid array or a triangular grid array and the like.
The phased array antenna which correspondingly works is N sub-arrays, and each sub-array comprises 4 radiation units.
The position relation between the sub-arrays of the phased array antenna which correspondingly works is a rotation relation or a translation and mirror image relation.
The sub-array surface radiation unit of the phased array antenna which correspondingly works is square, circular, triangular, hexagonal and the like.
The 4 radiation units in the sub-arrays of the phased array antenna which correspondingly works are the same and are placed in a rotating relationship, and the rotating degree is any suitable angle.
The phased array antenna unit which correspondingly works excites the radiation unit by using a single feed point or a plurality of feed points, but finally outputs a feed interface which is connected with the TR channel.
And a TR channel is connected behind each feed point (excitation) of the radiation unit of the phased array antenna which correspondingly works.
The TR channel module of the sub-array of the phased array antenna which correspondingly works adopts an all-in-one multifunctional CMOS chip.
The TR channel of the phased array antenna which correspondingly works changes the amplitude and the phase of the multifunctional chip by controlling the phase shifting, attenuating and amplifying functions of the multifunctional chip, thereby realizing the change of the polarization mode.
The phased array antenna radiation unit and the feed point are placed in a rotating mode, a non-vertical mode or a horizontal mode according to any included angle.
Example 3
Taking a phased array antenna with 8 × 8=64 array elements as an example, the front plane in fig. 3 includes N =16 sub-arrays, and each sub-array includes 2 × 2 array elements. The radiating elements are square, 4 element positions in the subarray are rotated by 90 degrees, the effect of the rotation is better when the wavefront scans a phi = 45-degree section, single feed point excitation is carried out, a phase shifter and an attenuator are connected behind each feed point, the phase of each feed point is ɸ 1, ɸ 2, ɸ 3 and ɸ 4, and the work of electromagnetic waves with different circular polarizations can be realized by controlling the amplitude and the phase of the phase shifter and the phase of the attenuator.
The polarization waves which correspondingly work comprise left-hand circular polarization, right-hand circular polarization, left-hand elliptical polarization and right-hand elliptical polarization.
The phased array antennas working correspondingly are the same as array surface radiation units, and the placement mode of the units in the sub-arrays is a rotating relationship.
The phased array antenna which correspondingly works is in a translation relation, a rotation relation or a mirror image relation among the sub-arrays.
The phased array antenna which correspondingly works excites the radiation unit by using a single feed point.
And each correspondingly working phased array antenna is excited and then connected with a TR channel, and a phase shifter and an attenuator are arranged in the phased array antenna.
The TR channel module of the phased array antenna which correspondingly works adopts m-in-one multifunctional CMOS chips, and each CMOS chip drives m gallium arsenide TR chips.
According to the theory of electromagnetic field, for two perpendicular components E of the resultant electric fieldxAnd EyThere are the following definitions:
when the components Ex and Ey of the electric field are of the same amplitude, the phase difference is pi/2, i.e. Ex=Ey，ɸx-ɸyAnd when the value is not less than +/-pi/2, the synthesized wave is a circularly polarized wave. When the wave is seen along the wave propagation direction, if the wave propagation direction shows a right-handed spiral rule along with the time change, the wave is a right-handed circularly polarized wave; otherwise, if the left-handed spiral rule is satisfied, the left-handed circularly polarized wave is obtained.
In fig. 4, taking an 8 × 8 array as an example, the cells in the sub-array are excited by a single feed point, each feed point is followed by a phase shifter, and when performing right-hand circular polarization operation, the phase of the cell 1 is taken as a reference, and the compensation phase inside the sub-array is ɸ1=0°，ɸ2=90°，ɸ3=180°，ɸ4=270 ° (or-90 °).
Claims (9)
1. The utility model provides a can realize controlling phased array antenna that circle polarization switches which characterized in that: the antenna comprises N2 x 2 TR sub-arrays, each TR sub-array comprises 4 phased array antenna radiation units, and the number of TR channels of each TR sub-array is 1 x 4; each phased array antenna radiating unit comprises a patch and a feed point A positioned on the patch, and each phased array antenna radiating unit feeds power for a single feed point;
the TR subarray is in a tile type or brick type structure;
the phased array antenna radiation unit and the feed point are placed in a rotating mode, a non-vertical mode or a horizontal mode according to any included angle.
2. A phased array antenna capable of performing left-right hand circular polarization switching according to claim 1, wherein: the transceiving channel module of each TR subarray comprises 4 transceiving channels; each receiving and transmitting channel module comprises a receiving and transmitting amplification multifunctional circuit, an attenuation phase-shifting amplification multifunctional circuit, a power supply control circuit, a wave control circuit and a power divider; the receiving and transmitting amplification multifunctional circuit realizes the functions of power amplification of a transmitting signal, low-noise amplification of a receiving signal and receiving and transmitting switching; the attenuation phase-shift amplification multifunctional circuit realizes attenuation, phase-shift control and signal amplification of the component; the wave control circuit converts high-speed serial data sent by the wave control machine into parallel control codes to control the attenuation phase-shifting circuit; the power supply control circuit realizes that the channel receiving power supply and the transmitting power supply are independently controllable; the power divider realizes power division or synthesis of channel signals; the amplitude and the phase of the multifunctional chip are changed by controlling the phase shifting, attenuating and amplifying functions of the multifunctional chip, so that the change of the polarization mode is realized.
3. A phased array antenna capable of performing left-right hand circular polarization switching according to claim 2, wherein: the receiving and dispatching channel module of each TR subarray comprises 1 four-in-one multifunctional integrated SOC chip or a half eight-in-one multifunctional integrated SOC chip, 4 TR receiving and dispatching chips are respectively driven, and amplitude phase control, receiving and dispatching power supply control and working mode switching are achieved through a wave control board.
4. A phased array antenna capable of performing left-right hand circular polarization switching according to claim 2, wherein: the receiving and transmitting channel module is a radio frequency integrated board and comprises a multi-channel multifunctional integrated SOC chip, a radio frequency channel feed network, a control and power supply feed line network, the radio frequency integrated board is designed by a plurality of microwave boards, the plurality of microwave boards are of a radio frequency integrated board and FR4 mixed pressure structure, the radio frequency channel feed network, the control and power supply feed line network are integrated, and the multifunctional integrated SOC chip and the plurality of microwave boards are interconnected in a gold wire bonding mode.
5. A phased array antenna capable of performing left-right hand circular polarization switching according to claim 1, wherein: all the area blocks of the TR channel module are controlled in parallel, and 4 channels of each area are read and written in series; the whole TR channel module shares a clock signal, a chip selection signal, a latch signal and a receiving and transmitting switch signal, and control data of each channel adopts a parallel receiving and transmitting mode, so that high-speed phase and amplitude control and working state control on a multifunctional chip of each channel are realized.
6. A phased array antenna capable of performing left-right hand circular polarization switching according to claim 1, wherein: the polarized waves of the phased array antenna which correspondingly works comprise left-hand circular polarization, right-hand circular polarization, left-hand elliptical polarization and right-hand elliptical polarization.
7. A phased array antenna capable of performing left-right hand circular polarization switching according to claim 1, wherein: the phased array antenna is rectangular grid array or triangular grid array.
8. A phased array antenna capable of performing left-right hand circular polarization switching according to claim 1, wherein: the position relation among the subarrays is a rotation relation or a translation and mirror image relation; the sub-array surface radiation units are square, circular, triangular or hexagonal.
9. The phased array antenna capable of performing left-right hand circular polarization switching according to claim, wherein: the single feed point excites the phased array antenna radiation unit and finally outputs a feed interface to be connected with the TR channel.
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| CN113451786A (en) * | 2021-06-25 | 2021-09-28 | 重庆两江卫星移动通信有限公司 | Control method for compact feed network and circularly polarized antenna array |
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| CN115051152A (en) * | 2021-08-11 | 2022-09-13 | 成都华芯天微科技有限公司 | Phase compensation method of low-profile broadband dual-circularly-polarized phased array antenna system |
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| CN116470304A (en) * | 2023-06-19 | 2023-07-21 | 成都恪赛科技有限公司 | Full polarization phased array antenna |
| CN116470304B (en) * | 2023-06-19 | 2023-08-29 | 成都恪赛科技有限公司 | Full polarization phased array antenna |
| CN118380772A (en) * | 2024-06-20 | 2024-07-23 | 深圳大学 | Low-cost electrically-tunable circularly-polarized phased array antenna |
| CN118380772B (en) * | 2024-06-20 | 2024-09-27 | 深圳大学 | A low-cost electrically tunable circularly polarized phased array antenna |
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