CN106025571B - A kind of Ku frequency range transmit-receive sharing line circular polarisation multiplexing feed network - Google Patents
A kind of Ku frequency range transmit-receive sharing line circular polarisation multiplexing feed network Download PDFInfo
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- CN106025571B CN106025571B CN201610498204.1A CN201610498204A CN106025571B CN 106025571 B CN106025571 B CN 106025571B CN 201610498204 A CN201610498204 A CN 201610498204A CN 106025571 B CN106025571 B CN 106025571B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
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Abstract
The present invention relates to a kind of Ku frequency range transmit-receive sharing line circular polarisation to be multiplexed feed network, four port networks are received and dispatched by Ku frequency range and Ku frequency range line circular polarisation handover network is combined, it includes that door turns round formula partial wave head, four U-bend waveguides, two Wide-Band Waveguide Magic T, two waveguide loads ,+45 ° of twisted waveguides, -45 ° of twisted waveguides, a phase compensation waveguide, four Z-shaped waveguide bends and two transmitting-receiving frequency duplexers that Ku frequency range, which receives and dispatches four port networks,；Ku frequency range line circular polarisation handover network includes four waveguide switches, four face E waveguide bends, the two-sided waveguide bend of two EH, receives frequency range ± 45 ° phase shifter, transmitting frequency range ± 45 ° phase shifter and two waveguide magic Ts.The present invention is using waveguide switch as line circular polarisation switching part, and not only rapidly, arrival rate is high, and ensure that the air-tightness of feed network for switching.Meanwhile the present invention has compact-sized, from debugging, standing wave, axis are than outstanding features of electric properties such as, interport isolations.
Description
Technical field
The present invention relates to a kind of Ku frequency range transmit-receive sharing line circular polarisation to be multiplexed feed network, in particular to two kinds work shapes
State, respectively Ku frequency range receive and dispatch linear polarization working condition and Ku frequency range receives and dispatches circular polarisation working condition, belong to reflector antenna feedback
Source network field.
Background technique
In satellite communication and TT&C system, reflector antenna is indispensable important component, its performance is straight
Connect the performance for determining entire satellite communication and TT&C system.Core component of the feed network as reflector antenna, for real
The function of existing reflector antenna transmit-receive sharing or polarization multiplexing.With the development of satellite communication and observation and control technology, system is frequent
It is required that reflecting plane aerial feed source network has the function of transmit-receive sharing and polarization multiplexing simultaneously, and to its electric property, structure type,
Reliability and maintainability etc. requires higher and higher.
The transmit-receive sharing line circular polarisation multiplexing feed network of reflector antenna mostly uses greatly waveguide partial wave head both at home and abroad at present
It will receive and transmitting frequency band signals separate, receive and emit frequency band signals again respectively by waveguide phase shifter and orthomode coupler
Realize the polarization identification function of horizontal, vertical linear polarization or left and right hand circular polarization signal；The handoff functionality of line circular polarisation is benefit
It is realized with direct current generator driving waveguide phase shifter around the circular motion that feed network axis does 0 °~45 °, in waveguide phase shifter two
End is connected with circular waveguide rotary joint.The feed network of form using the above structure, although principle is simple, technology is more mature,
It is that the bandwidth of operation of feed network, and entire feed network debugging efforts are directly affected due to waveguide partial wave head narrower bandwidth
Amount is big, is not suitable for batch production.Simultaneously as being realized between linear polarization and circular polarisation using direct current generator driving waveguide phase shifter
Switching, complicated in mechanical structure, switching time is long, switching arrival rate it is low, reliability is poor.Sixty-four dollar question is, due to circle
The influence of waveguide junction, it is difficult to the air-tightness for realizing entire feed network, even with the airproof circular waveguide with oil sealing
Rotary joint, due to the abrasion and aging of oil sealing, it is difficult to realize the air-tightness of feed network whole life cycle, and replace oil sealing
Equal maintenance works are more difficult.
Summary of the invention
The purpose of the present invention is: overcome the above-mentioned deficiency of the prior art, a kind of transmit-receive sharing line circle of function admirable is provided
Polarization multiplexing feed network, it not only has wider working band, but also has simple structure, good electric property, from adjusting
The features such as examination, meanwhile, it also meets, and line circular polarisation switching time is fast, and in stable condition, high reliablity, air-tightness is well equal to be required, and fits
For high-performance reflector antenna.
The object of the present invention is achieved like this:
Provide a kind of Ku frequency range transmit-receive sharing line circular polarisation multiplexing feed network comprising, four ends are received and dispatched by Ku frequency range
Mouth network 1 and Ku frequency range line circular polarisation handover network 2 are combined, and Ku frequency range receives and dispatches four output ports of four port networks 1
Four input ports compound with Ku frequency range line circular polarisation handover network 2 correspond respectively to be connected；
The Ku frequency range line circular polarisation handover network 2 includes transmitting unit 2a and receiving unit 2b；
The transmitting unit 2a includes left-handed waveguide switch 201 and dextrorotation waveguide switch 202, and the left-handed waveguide is opened
A phase shifter, the reception frequency range phase difference of two phase shifters are respectively connected on pass 201 and the circular polarisation port of dextrorotation waveguide switch 202
It is 90 °, two phase shifters are connected to correspondingly respectively on two synthesis ports of a waveguide magic T 207, waveguide magic T 207
H arm port the left-handed signal receiving end of left-handed waveguide switch 201, waveguide magic T 207 are connected to by third U-bend waveguide 208
E arm port the right hand signal receiving end of dextrorotation waveguide switch 202 is connected to by the 4th U shape waveguide bend 209, in left-handed wave
It leads and is respectively connected to the 5th U-bend waveguide 203 on the signal transmitting and receiving port of switch 201 and dextrorotation waveguide switch 202；
The transmitting unit is identical with the structure of receiving unit.
Further, it includes that door turns round formula partial wave head 101, turns round formula partial wave in door that the Ku frequency range, which receives and dispatches four port networks 1,
It is connect respectively on first 101 four waveguide mouths there are two the first U-bend waveguide 102 and two the second U-bend waveguides 103, two the
The symmetrical setting of one U-bend waveguide 102, two symmetrical settings of the second U-bend waveguide 103, the first U-bend waveguide
102 are connected on the second Wide Band Magic T105, and the 2nd U shape waveguide bend 103 is connected on the first Wide Band Magic T104, and the first Wide Band Magic T is located at
Above second Wide Band Magic T, waveguide load 106 is connected on the first Wide Band Magic T, the E arm port of the first Wide Band Magic T104 is connected to
The public port of first duplexer 111, the second Wide Band Magic T105 are connected to waveguide load 106, the E arm end of the second Wide Band Magic T105
Mouth is connected to the public port of the second duplexer 112.
Further, the E arm port of the first Wide Band Magic T104 is connected with -45 ° of twisted waveguides 107, -45 ° of twisted waveguides
107 are connected to the public port of first duplexer, the E arm end of the second Wide Band Magic T105 by phase compensation waveguide 109
+ 45 ° of twisted waveguides 108 of mouth are connected, and+45 ° of twisted waveguides 108 are connected to the public port of the second duplexer by waveguide.
Further, the public port of the first duplexer 111 and the second duplexer 112 is flush.
Further, the center that the door turns round formula partial wave head 101 is equipped with matching ladder.
Further, the mating structure of the waveguide bend is 3 rank stepped forms.
Further, it is connected to+45 ° of phase shifters 204 on left-handed waveguide switch, is connected to -45 ° of shiftings in dextrorotation waveguide switch
Phase device 205.
Further, the standard rectangular WAVEGUIDE LOADED capacitive window knot of the 204 model BJ120 of+45 ° of phase shifters
Structure, the standard rectangular WAVEGUIDE LOADED inductance diaphragm form of -45 ° of 205 model BJ120 of phase shifter.
Further, the first Wide Band Magic T104 is the Wide Band Magic T that flat WAVEGUIDE LOADED metal matches cylinder design form,
Pass through three rank ladder transitions to BJ120 standard rectangular Waveguide interface.
Further, the electrical length difference of the first U-bend waveguide 102 and the second U-bend waveguide 103 is mended equal to phase
Repay the electrical length of waveguide 109.
Compared with prior art, the present invention has the following advantages:
(1) present invention turns round the main devices of the decomposition and synthesis of formula partial wave head and Wide-Band Waveguide Magic T as signal using door,
Good impedance matching is realized receiving in frequency range to the transmitting entire frequency range of frequency range, it is consistent to control phase well
Property, advantage is created to reduce the axis ratio of circularly polarized signal.
(2) present invention realizes the separation for receiving signal and emitting signal using transmitting-receiving frequency duplexer, receives and transmitting frequency
Isolation between section can accomplish 95dB or more.
(3) phase shifting device of the use ± 45 ° phase shifter of the present invention as synthesis circularly polarized signal, working band is wide, and
It realizes to receive frequency range circularly polarized signal and emit being separately synthesized for frequency range circularly polarized signal and reduces circle convenient for control amount of phase shift
Axial ratio.
(4) Primary Component that the present invention is switched using waveguide switch as line circular polarisation, switching rapidly, switch arrival rate
Height, and high reliablity, it is convenient for safeguarding.
(5) present invention has structure simple, the electric properties such as standing wave, differential loss, cross polarization, Circular polarization ratio, isolation
It is excellent, be convenient for modularization the advantages that.
(6) present invention can be realized the air-tightness requirement of entire feed network.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the structure chart that Ku frequency range of the invention receives and dispatches four port networks.
Fig. 3 is the structure chart of Ku frequency range line circular polarisation handover network of the invention.
Fig. 4 is the structure chart that door of the invention turns round formula partial wave head.
Fig. 5 is the structure chart of Wide-Band Waveguide Magic T of the invention.
Fig. 6 is the A-A sectional view of Wide-Band Waveguide Magic T.
Fig. 7 is the B-B sectional view of Wide-Band Waveguide Magic T.
Fig. 8 is the structural schematic diagram of waveguide switch A condition of the invention.
Fig. 9 is the structural schematic diagram of waveguide switch B state of the invention
Figure 10 is the structural schematic diagram of+45 ° of phase shifters of the invention.
Figure 11 is the structural schematic diagram of -45 ° of phase shifters of the invention.
Figure 12 is the face E waveguide bend mating structure schematic diagram of the invention.
Figure 13 is the face H waveguide bend mating structure schematic diagram of the invention.
Description of symbols: Ku frequency range receive and dispatch four port networks 1, door turn round formula partial wave head 101, the first U-bend waveguide 102,
Second U-bend waveguide 103, the first Wide Band Magic T104, the second Wide Band Magic T105,106, -45 ° of waveguide load, 107 ,+45 ° of twisted waveguide
Twisted waveguide 108, phase compensation waveguide 109, Z-shaped waveguide bend 110, first duplexer 111, the second duplexer 112.
Ku frequency range line circular polarisation handover network 2, transmitting unit 2a and receiving unit 2b, left-handed waveguide switch 201 and the right side
Revolve waveguide switch 202,203 ,+45 ° of the 5th U-bend waveguide 204, -45 ° of phase shifter phase shifter 205, waveguide magic T 207, third U-shaped
Waveguide bend 208, the 4th U-bend waveguide 209.
Specific embodiment
The present invention is described in further detail with specific implementation example with reference to the accompanying drawing:
The structure chart of feed network, Ku of the present invention are multiplexed for Ku frequency range transmit-receive sharing line circular polarisation of the present invention as shown in Figure 1
Frequency range transmit-receive sharing line circular polarisation is multiplexed feed network and receives and dispatches four port networks 1 and the switching of Ku frequency range line circular polarisation by Ku frequency range
Network 2 is combined.
It includes that door turns round formula partial wave head 101, the first U-bend waveguide 102, that Ku frequency range as shown in Figure 2, which receives and dispatches four port networks 1,
Two U-bend waveguides 103, the first Wide Band Magic T104, the second Wide Band Magic T105,106, -45 ° of waveguide load, 107 ,+45 ° of twisted waveguide are turned round
Waveguide 108, phase compensation waveguide 109, Z-shaped waveguide bend 110, first duplexer 111, the second duplexer 112 composition, door turn round formula
Partial wave head 101 is illustrated in figure 45 port wave-dividing devices, and circular waveguide port is public port, and 4 output ports are BJ120
Standard rectangular Waveguide interface, and be distributed in cross structure, the mating structure that door turns round formula partial wave head 101 is two rank frustum cone structures,
In the frequency range of 10.7GHz~14.5GHz, standing wave is less than 1.12, on four waveguide mouths that door turns round formula partial wave head 101 respectively
It connects there are two the first U-bend waveguide 102 and two the second U-bend waveguides 103, two the first U-bend waveguides 102 are symmetrical to be set
It sets, two symmetrical settings of the second U-bend waveguide 103, two 102 place planes of the first U-bend waveguide and two the second U-bends
103 place plane of waveguide is mutually orthogonal, and the first U-bend waveguide 102 is connected on the second Wide Band Magic T105, the second U-bend wave
It leads 103 to be connected on the first Wide Band Magic T104, the first Wide Band Magic T is located above the second Wide Band Magic T, the first Wide Band Magic T104 and the
Two Wide Band Magic T105 are connected to waveguide load 106, can divide in the E arm port of the first Wide Band Magic T104 and the second Wide Band Magic T105
The mutually orthogonal signal of the polarization of two frequency range 10.7GHz~14.5GHz is not obtained, in the first Wide Band Magic T104 and second
The H arm port of Wide Band Magic T105 is separately connected a waveguide load 106 for absorbing the antipole due to Sensor gain and phase perturbations excitation
Change signal, the contour structures and internal view of Wide-Band Waveguide Magic T104 are as shown in Fig. 5 Fig. 6 Fig. 7, due to former using the Wide-Band Design
Reason, in the frequency range of 10.7GHz~14.5GHz, the E arm port of Wide-Band Waveguide Magic T104 and H arm port standing wave are respectively less than
1.15, interport isolation is better than 40dB.The E arm port of first Wide Band Magic T is connected with -45 ° of twisted waveguides, and -45 ° of twisted waveguides 107 are logical
Cross the public port that phase compensation waveguide 109 is connected to first duplexer, the E arm port of the second Wide Band Magic T105 with+
45 ° of twisted waveguides 108 are connected, and+45 ° of twisted waveguides 108 are connected to the public port of the second duplexer, first duplexer by waveguide
111 and second the public port of duplexer 112 be flush.
The polarized signal of the E arm port output of first Wide-Band Waveguide Magic T104 is again respectively via -45 ° of torsions of sequential connection
Waveguide 107, Z-shaped waveguide bend 110, into first duplexer 111, transmit-receive sharing function is realized in two frequency band signals separation of sending and receiving
Energy.
The polarized signal of the E arm port output of second Wide-Band Waveguide Magic T105 is again respectively via the curved wave of Z shape of sequential connection
It leads ,+45 ° of twisted waveguides 108 using Z-shaped waveguide bend enter the second transmitting-receiving frequency duplexer 112, two frequency band signals of sending and receiving point
From realization transmit-receive sharing function.
The electrical length difference of the first U-bend waveguide 102 and the second U-bend waveguide 103 is equal to phase compensation waveguide 109
Electrical length.
To guarantee the phases such as signal, only distortion angle differs 90 ° to -45 ° of twisted waveguides 107 with+45 ° of twisted waveguides 108, electrical length phase
Together；
As indicated at 3 Ku frequency range line circular polarisation handover network 2 include transmitting unit 2a and receiving unit 2b, transmitting unit and
The structure of receiving unit is identical, and transmitting unit is by left-handed waveguide switch 201 and dextrorotation waveguide switch 202, the 5th U-bend waveguide
203,204, -45 ° of phase shifters 205 of+45 ° of phase shifters, waveguide magic T 207, the waveguide 208 of third U-bend, the 4th U-bend waveguide 209
Composition.
The transmitting unit 2a includes left-handed waveguide switch 201 and dextrorotation waveguide switch 202, and the left-handed waveguide is opened
A phase shifter, the reception frequency range phase difference of two phase shifters are respectively connected on pass 201 and the circular polarisation port of dextrorotation waveguide switch 202
It is 90 °, two phase shifters are connected to correspondingly respectively on two synthesis ports of a waveguide magic T 207, waveguide magic T 207
H arm port the left-handed signal receiving end of left-handed waveguide switch 201, waveguide magic T 207 are connected to by third U-bend waveguide 208
E arm port the right hand signal receiving end of dextrorotation waveguide switch 202 is connected to by the 4th U shape waveguide bend 209, in left-handed wave
Lead and be respectively connected to one the 5th U-bend waveguide 203 on the signal transmitting and receiving end of switch 201 and dextrorotation waveguide switch 202, transmitting unit and
Receiving unit is arranged side by side.
It can be received horizontal, vertical linear polarization and emission level, vertical line pole respectively in each 5th U-bend waveguide
Change signal, realizes the transmit-receive sharing function of Ku frequency range linear polarization signal.
As shown in Figure 8, Figure 9, left-handed waveguide switch is identical with dextrorotation waveguide construction of switch, and the two is all four port devices,
Can work in A, B two states respectively, when A condition, port 1 is connected to port 2, and port 3 is connected to port 4, two paths it
Between be isolated；When B state, port 1 is connected to port 4, and port 2 is connected to port 3, is isolated between two paths；
Each port is distinguished by function, the port 4 of left-handed waveguide switch is used as circular polarisation port, and left-handed waveguide is opened
The port 3 of pass is used as left-handed signal receiving end, and the port 2 of left-handed waveguide switch is used as signal transmitting and receiving end, left-handed waveguide switch and
The port 1 of dextrorotation waveguide switch is used as public port；The port 2 of dextrorotation waveguide switch is as circular polarisation port as circular polarisation end
Mouthful, the port 3 of dextrorotation waveguide switch is used as right hand signal receiving end, and the port 4 of dextrorotation waveguide switch is used as signal transmitting and receiving end, excellent
Select the port 1 of waveguide switch as public port.
The synthesis mode of the receiving and transmitting signal and the left and right hand circular polarization signal of progress is:
As shown in Figure 1, Figure 2 and Figure 3, the emission port of first duplexer and the second duplexer is connected respectively to transmitting unit
The left-handed waveguide switch 201 of 2a and the public port of dextrorotation waveguide switch 202, the receiving end of first duplexer and the second duplexer
Mouth is connected respectively to the left-handed waveguide switch 201 of receiving unit 2b and the public port of dextrorotation waveguide switch 202, in transmitting unit
+ 45 ° of phase shifters are connected to on the circular polarisation port of the left-handed waveguide switch 201 of receiving unit, in the circle of dextrorotation waveguide switch 202
- 45 ° of phase shifters are connected on polarization port, two phase shifters are connected to two synthesis of a waveguide magic T 207 correspondingly respectively
On port, the working condition conductive channel of left-handed waveguide switch and dextrorotation waveguide switch is thus controlled, two duplexs can be realized
The receiving port of device respectively with receiving unit, -45 ° of phase shifters, the connection of+45 ° of phase shifters or the reception with two duplexers
The port connection with the 5th U-bend waveguide 203 respectively, the emission port of two duplexers respectively with -45 ° of phase shifts of transmitting unit
Device, the connection of+45 ° of phase shifters or the emission port connection with the 5th U-bend waveguide 203 respectively of two duplexers.
When the sending port of first duplexer and the second duplexer is connected to phase shifter, due to -45 ° of phase shifters 205 with
+ 45 ° of phase shifters 204 differ 90 °, and two orthogonal frequency range linear polarization signals synthesize left-right-hand circular polarization in waveguide magic T
Signal, and respectively along the E arm port of waveguide magic T 207 dextrorotation waveguide switch is delivered to by the 4th U-bend waveguide and along the 5th
U-bend waveguide output, and left-handed waveguide switch is connected to along third U-bend waveguide 208 along the H arm port of waveguide magic T 207
201 and along the 5th U-bend waveguide export, realize the left and right hand circular polarization signal of Ku UHF band reception common functions.
Emit the synthesis mode of left and right hand circular polarization signal similarly.
When the sending port of first duplexer and the second duplexer is connected to the 5th U-bend waveguide, then first duplexer
It is directly exported via the 5th U-bend waveguide with the level in the second duplexer, vertical signal.
Emission level, vertical signal synthesis mode similarly.
As shown in Figure 10 and Figure 11, the structure of transmitting+45 ° of phase shifters of frequency range 204 and transmitting -45 ° of phase shifters of frequency range 205
Figure is the phase shifter of rectangular waveguide loading capacitance or inductance diaphragm form；
As shown in Figure 12 and Figure 13, the mating structure of above-mentioned various waveguide bend uses the mating structure of 3 rank stepped forms,
In the frequency range of 10.7GHz~14.5GHz, the standing wave of waveguide bend can be better than 1.02, and processing consistency mores easily guarantee.
Only external dimensions is different for above-mentioned Wide-Band Waveguide Magic T104 and waveguide magic T 207.
Claims (9)
1. a kind of Ku frequency range transmit-receive sharing line circular polarisation is multiplexed feed network, it is characterised in that: receive and dispatch four port nets by Ku frequency range
Network (1) and Ku frequency range line circular polarisation handover network (2) are combined, and Ku frequency range receives and dispatches four output ends of four port networks (1)
Mouth four input ports compound with Ku frequency range line circular polarisation handover network (2) correspond respectively to be connected；
The Ku frequency range line circular polarisation handover network (2) includes transmitting unit (2a) and receiving unit (2b)；
The transmitting unit (2a) includes left-handed waveguide switch (201) and dextrorotation waveguide switch (202), the left-handed waveguide
A phase shifter, the reception frequency range of two phase shifters are respectively connected on the circular polarisation port of switch (201) and dextrorotation waveguide switch (202)
Phase difference is 90 °, and two phase shifters are connected to correspondingly respectively on two synthesis ports of a waveguide magic T (207), waveguide
The H arm port of magic T (207) is received by the left-handed signal that third U-bend waveguide (208) is connected to left-handed waveguide switch (201)
End, the E arm port of waveguide magic T (207) are connected to the dextrorotation letter of dextrorotation waveguide switch (202) by the 4th U-bend waveguide (209)
Number receiving end, is respectively connected to the 5th U-shaped on the signal transmitting and receiving port of left-handed waveguide switch (201) and dextrorotation waveguide switch (202)
Waveguide bend (203)；
The transmitting unit is identical with the structure of receiving unit；
The Ku frequency range transmitting-receiving four port networks (1) includes that door turns round formula partial wave head (101), turns round formula partial wave head (101) in door
First U-bend waveguide (102) and two the second U-bend waveguides (103) there are two being connect respectively on four waveguide mouths, two the first U
Shape waveguide bend (102) symmetrical setting, two second U-bend waveguide (103) symmetrical settings, the first U-bend waveguide
(102) it is connected on the second Wide Band Magic T (105), the second U-bend waveguide (103) is connected on the first Wide Band Magic T (104), the first broadband
Magic T is located above the second Wide Band Magic T, is connected on the first Wide Band Magic T waveguide load (106), the E arm of the first Wide Band Magic T (104)
Port is connected to the public port of first duplexer (111), and the second Wide Band Magic T (105) is connected to waveguide load (106), and second is wide
The public port of the second duplexer (112) is connected to the E arm port of evil spirit T (105).
2. a kind of Ku frequency range transmit-receive sharing line circular polarisation according to claim 1 is multiplexed feed network, it is characterised in that: institute
The E arm port of the first Wide Band Magic T (104) stated is connected with -45 ° of twisted waveguides (107), and -45 ° of twisted waveguides (107) are mended by phase
Repay the public port that waveguide (109) is connected to first duplexer, the E arm port of the second Wide Band Magic T (105) and+45 ° of torsions
Waveguide (108) is connected, and+45 ° of twisted waveguides (108) are connected to the public port of the second duplexer by waveguide.
3. a kind of Ku frequency range transmit-receive sharing line circular polarisation according to claim 2 is multiplexed feed network, it is characterised in that: institute
The public port of the first duplexer (111) and the second duplexer (112) stated is flush.
4. a kind of Ku frequency range transmit-receive sharing line circular polarisation according to claim 1 is multiplexed feed network, it is characterised in that: institute
The center that the door stated turns round formula partial wave head (101) is equipped with matching ladder.
5. a kind of Ku frequency range transmit-receive sharing line circular polarisation according to claim 1 is multiplexed feed network, which is characterized in that institute
The mating structure for stating waveguide bend is 3 rank stepped forms.
6. a kind of Ku frequency range transmit-receive sharing line circular polarisation according to claim 1 is multiplexed feed network, it is characterised in that:
It is connected to+45 ° of phase shifters (204) on left-handed waveguide switch, is connected to -45 ° of phase shifters (205) in dextrorotation waveguide switch.
7. a kind of Ku frequency range transmit-receive sharing line circular polarisation according to claim 6 is multiplexed feed network, it is characterised in that: institute
+ 45 ° of phase shifters (204) stated are BJ120 standard rectangular WAVEGUIDE LOADED capacitive window structure, and -45 ° of phase shifters (205) are BJ120
Standard rectangular WAVEGUIDE LOADED inductance diaphragm form.
8. a kind of Ku frequency range transmit-receive sharing line circular polarisation according to claim 1 is multiplexed feed network, which is characterized in that institute
Stating the first Wide Band Magic T (104) is the Wide Band Magic T that flat WAVEGUIDE LOADED metal matches cylinder design form, passes through three rank ladder transitions
To BJ120 standard rectangular Waveguide interface.
9. a kind of Ku frequency range transmit-receive sharing line circular polarisation according to claim 2 is multiplexed feed network, which is characterized in that institute
The electrical length difference for stating the first U-bend waveguide (102) and the second U-bend waveguide (103) is equal to the electricity of phase compensation waveguide (109)
Length.
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| CN107369905B (en) * | 2017-07-19 | 2020-07-21 | 电子科技大学 | Broadband high-efficiency high-gain circularly polarized array antenna |
| CN108448255B (en) * | 2018-05-03 | 2024-02-23 | 中国电子科技集团公司第五十四研究所 | C/X/Ku broadband three-frequency shared feed source network |
| CN109004327B (en) * | 2018-08-08 | 2024-02-06 | 中国电子科技集团公司第五十四研究所 | Nonstandard waveguide magic T power distribution/synthesizer |
| CN112563746B (en) * | 2020-11-05 | 2021-10-26 | 星展测控科技股份有限公司 | Waveguide antenna |
| CN115513671A (en) * | 2022-08-26 | 2022-12-23 | 西安空间无线电技术研究所 | Ka ultra wide band transmitting-receiving integrated special-shaped choking compact low-PIM feed system |
| CN116914441B (en) * | 2023-09-14 | 2023-12-29 | 迪泰（浙江）通信技术有限公司 | Satellite antenna spin polarization switching method based on Ka band planar array |
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