CN212542699U - Polarization switching control device for satellite antenna feed source transition waveguide - Google Patents
Polarization switching control device for satellite antenna feed source transition waveguide Download PDFInfo
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- CN212542699U CN212542699U CN202021702363.7U CN202021702363U CN212542699U CN 212542699 U CN212542699 U CN 212542699U CN 202021702363 U CN202021702363 U CN 202021702363U CN 212542699 U CN212542699 U CN 212542699U
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Abstract
The utility model discloses a polarization switching control device of satellite antenna feed transition waveguide aims at a collection ripples efficiently, polarization switching control device that polarization switching is swift. The utility model discloses a following technical scheme realizes: the transition waveguide is fixed on a support through a feed source clamp and a clamping groove on an automatic portable antenna, the transition waveguide is connected with a waveguide adapting flange through a joint waveguide end, the joint waveguide is connected with a fixing flange assembling hole in an interference fit mode, a circular polarizer connected with the adapting flange by the fixing flange is rotatably connected in a central hole of the fixing flange, the circular polarizer is fixed on a corresponding position of a Transceiver module Transceiver12 through a pan head screw distributed from the end to a circumferential circular array of the flange, and a conversion control device for switching the transition waveguide polarization to antenna feed sources with different frequency bands is assembled.
Description
Technical Field
The utility model relates to a satellite broadcast and communication field are particularly useful for transition wave polarization auto-change over device that ka frequency channel satellite receiving and dispatching subassembly polarization switched.
Background
The satellite television receiving system mainly comprises a satellite receiving antenna, a satellite receiving tuner and a satellite television receiver. The antenna is arranged at the forefront end of the receiving system and is used for gathering weak ultrahigh frequency electromagnetic waves from the satellite transponder, converting the weak ultrahigh frequency electromagnetic waves into electromagnetic waves in guided waves or high frequency current in a transmission cable, and transmitting the electromagnetic waves or the high frequency current to the satellite receiving tuner through the waveguide or the high frequency cable. Since the satellite television transmission signal has polarization properties, the receiving antenna must have the same polarization and handedness characteristics as the transmitting antenna to achieve polarization matching and thus receive the full energy. If the parts match, only part of the energy can be received. According to the antenna theory, one linearly polarized wave can be decomposed into two circularly polarized waves with opposite rotation directions; a circularly polarized wave can also be decomposed into mutually orthogonal linearly polarized waves, so that an antenna receiving a linearly polarized wave can also receive a circularly polarized wave, and an antenna receiving a circularly polarized wave can also receive a linearly polarized wave, but with a 3dB energy attenuation.
The technical index of the satellite receiving antenna has a decisive influence on the receiving effect of the whole system, and the receiving effect is determined by three factors: elevation angle, azimuth angle and polarization mode, and polarization adjustment has great influence on satellite signal receiving strength. However, the polarization adjustment is often not considered during the installation and debugging of the receiving antenna. The polarization reflects the rule that the electromagnetic wave electric field vector changes along with time, and is a means for improving the utilization rate of channels. The polarization of the antenna refers to the direction of the electric field intensity formed when the antenna radiates. And the polarization of the satellite signal is determined not by the satellite receiving antenna. The polarization characteristic of the radio wave depends on the polarization characteristic of the transmitting antenna feed system, and comprises a left-hand polarization antenna, a linear polarization antenna and the like. The linearly polarized waves transmitted by the satellite are defined with respect to the axis of the satellite. When the electric field intensity direction (polarization direction) is perpendicular to the ground, the electric wave is called a vertical polarization wave; when the electric field strength is directed parallel to the ground, the electric wave is called a horizontally polarized wave. Only the electric field component parallel to the waveguide axis has excellent cross-polarization characteristics. The satellite is mostly in a circular polarization mode, and when circular polarization waves forwarded by the satellite are reflected by a metal paraboloid, polarization needs to be converted, namely, left rotation is changed into right rotation, and right rotation is changed into left rotation.
In a satellite receiving antenna, a horn antenna is widely used as a feed source, the feed source is the heart of the antenna and is used as a primary radiator of a high-gain focusing antenna, and the core of the horn antenna is a circular waveguide, so that the circular waveguide is adopted, the circular waveguide is used for ensuring that the satellite receiving antenna can not only circularly polarize signals, but also receive linearly polarized signals, and the problem that the hardware of the antenna is greatly changed due to the change of the polarization type of the satellite signals is avoided. The feed source can be divided into a feed-forward feed source and a feed-backward feed source according to the using mode, and can be divided into a C frequency band feed source, a Ku frequency band feed source and a Ka frequency band feed source according to the satellite frequency band. As a part of the antenna, the feed source is connected with the high-frequency head through a flange plate, and the input end of the high-frequency head is a rectangular waveguide which can only receive linearly polarized waves, so a circular-moment conversion section is required to be arranged in the feed source to gradually transit the circular waveguide to the rectangular waveguide. The feed horn receives circularly polarized waves, and the polarization type of signals needs to be changed in front of the tuner so that the tuner which can only receive linear polarization can receive the converted circular polarization. Since a circularly polarized wave is a linearly polarized wave that can be decomposed into two linearly polarized waves of equal amplitude and polarization isolation, it can be received by the tuner of the rectangular waveguide only by changing the phase difference between the two linearly polarized waves and trying to be in phase. Generally, in the field of satellite broadcasting and communication, an elliptical polarization mode is not adopted, because the size and the direction of an electric field change in one period, a receiving end is not easy to receive signals, and receiving equipment becomes complex.
The adjustment of the satellite receiving antenna requires a certain theoretical knowledge and practical working experience. In actual work, engineers often pay attention to the azimuth angle and the elevation angle of a receiving satellite antenna, and little is known about the polarization mode and the polarization angle. Since the antenna feed output is usually connected to an outdoor receiving unit with a rectangular interface, the feed of a reflector antenna usually requires a section of polarization converter and a rectangular transition waveguide. For receiving satellite broadcast signals adopting circularly polarized waves, a polarizer arranged behind a receiving antenna feed source converts the circularly polarized waves into linearly polarized waves, and then converts wave patterns in a circular waveguide into wave patterns in a rectangular waveguide through a rectangular-circular transition waveguide, so that the polarizer is matched with a satellite receiving tuner (LNB) interface behind the polarizerAnd (6) connecting. Waveguide-type feeds are usually excited with a circular waveguide in order to obtain a rotationally symmetric pattern. The polarizer immediately behind the feed is also formed by a circular waveguide. Most of the inputs of the high-frequency head (LNB) are rectangular waveguides, so a circular-rectangular transition waveguide section is usually added to the output port of the feed source to complete TE in the circular waveguide11Electromagnetic wave of mode to TE mode in rectangular waveguide10Conversion of electromagnetic waves.
The antenna rotating mechanism generally adopts a servo motor fixed in an antenna base and a gear transmission adopted between the servo motor and a rotating shaft of a rotating antenna, and microwave signals are transmitted to a horizontally polarized waveguide slot antenna (HH antenna) through a joint waveguide in the middle of the rotating shaft. HH. Switching between VV antennas is achieved by a waveguide switch mounted inside the antenna. The work of the waveguide switch needs 24V direct current voltage and a corresponding control circuit, the dual-polarization transformation of a satellite television receiving system firstly needs to change an HH polarization antenna into an HH and VV dual-polarization antenna, and at the moment, a polarization switching control signal is a low-frequency direct current signal and cannot be transmitted by using a waveguide. The most direct solution is to add a slip ring at the rotary joint to realize the transmission of the antenna switching control signal. But the collector ring is bulky, the cost is higher, brush contact wearing and tearing lead to the life-span limited, maintain the maintenance inconvenient to install the process of collector ring additional and must destroy original antenna servo structure, the engineering volume is big, the cost is reformed transform, high brush contact wearing and tearing lead to the life-span limited, maintain the maintenance inconvenient. If a contact type collector ring scheme is adopted for transformation, the whole antenna servo mechanism is required to be designed and manufactured again, wherein the whole antenna servo mechanism comprises a transmission mechanism, a microwave transmission structure and a microwave transmission mode, and the economic efficiency and the practicability of the scheme are influenced by the high cost and excessive mechanical structure changes of the antenna servo mechanism. How to send the switching signal and the power supply to the rotating antenna becomes a main problem for the dual-polarization transformation of the navigation radar.
The commonly used dual-polarized feed source for the high-flux Ka-band satellite has two types, one type is a Ku-band dual-polarized feed source with two flange plates of the feed source positioned on the same plane, the other type is a Ku-band dual-polarized feed source with two flange plates of the feed source positioned on mutually vertical planes, and in addition, a combined feed source for mounting the C, Ku-band dual-polarized feed source together is also arranged. The transition waveguide serves to fix the polarization direction for tuner connection. Most of the navigation antenna feed systems are continuous rotating antenna systems adopting joint waveguides, and microwave power transmission between a fixed base and a rotating antenna is mainly realized through the joint waveguides.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the weak point that exists to above-mentioned prior art, the utility model provides a ripples collection is efficient, and the reliability is high, and polarization switching is swift, need not to change current sky and presents servo structure and realize the satellite antenna feed transition waveguide polarization switching control device that switches the antenna polarization mode.
The utility model provides a technical scheme that its technical problem adopted is, a satellite antenna feed transition waveguide polarization switching control device, include: arbitrary feed horn 1 corresponds flange disc axial connection's transition waveguide 5 through the afterbody, assembles mounting flange 8 of waveguide adaptation flange 9, and the circular polarizer 10 of waveguide adaptation flange 9 is connected to the end, its characterized in that: arbitrary feed horn 1 passes through the feed clamp 4 through the hand, draw-in groove fixes transition waveguide 5 on the support on the automatic portable antenna, transition waveguide 5 passes through 6 end connection waveguide adaptation flanges 9 of joint waveguide, 6 clearance fit connection mounting flange 8 pilot holes of joint waveguide, mounting flange 8 is with circular polarization ware 10 that adaptation flange 9 is connected, rotationally connect in mounting flange 8 centre bore, circular polarization ware 10 passes through the dish head screw that the end distributes to flange circumference circle matrix and fixes on Transceiver module Transceiver12 corresponding position, assemble transition waveguide 5 polarization switching different frequency channel antenna feed's conversion controlling means.
The utility model discloses compare and have following beneficial effect in prior art:
the wave collection efficiency is high. The utility model discloses a draw-in groove mode on hand, the automatic portable antenna is pushed into it and is fixed with the screw by feed clamp 4 bottom flanges, can realize the conversion of different frequency channel antenna feed on same antenna face. The receiving and transmitting polarization of the satellite antenna signal receiving and transmitting frequency conversion and amplification equipment and a satellite Modem (Modem) can be switched quickly under the condition of not disassembling screws on a Transceiver. And by matching with the offset feed antenna, the signal reflected by the antenna surface can be absorbed to the maximum extent, and the wave collection efficiency is improved.
The reliability is high. The waveguide of circular polarizer and the convenient polarization switching design that possesses of light Transceiver module Transceiver junction need not to change current sky and present the servo structure, can adapt to satellite antenna, and can be under the condition of the screw on the non-dismantling Transceiver, swiftly switch receiving and dispatching polarization, arbitrary feed loudspeaker 1 adopts general flange interface through the transition waveguide 5's that the afterbody corresponds the ring flange axial connection the other end simultaneously, can match the feed loudspeaker of installing different cross-diameter ratios, only need realize the transmission microwave signal through joint waveguide between antenna and the base, no other signal of telecommunication transmission, thereby make Transceiver can high-reliability ground adaptation in various antennas.
The polarization switching is fast. The utility model discloses a through annular knurl crew head screw 3 open feed clamp 4, turn round the pine hexagon socket head screw 7 with the hexagon socket head wrench, rotate arbitrary feed loudspeaker 1 according to shown orientation in figure 2, through the circular polarizer 10 that is shown in figure 2, waveguide adaptation flange 9, transition waveguide 5, arbitrary feed loudspeaker 1 links together each other, and circular polarizer 10 in Transceiver module Transceiver12 mounting hole can together rotate along with arbitrary feed loudspeaker 1. Meanwhile, when the circular polarizer 10 is indirectly connected with the transition waveguide 5, a connecting clamping ring which is designed in the inner hole and has a rotation range of 0-180 degrees and is shown in the figure 3 can be assembled through a Transceiver 12. The radial protrusion 14 of the circular polarizer 10 rotates in the clamping ring groove, the marks of the radial protrusion 14 on the circular polarizer 10 and the arrows on the joint waveguide 6 which are in one-to-one correspondence are used for representing the left polarization of the antenna on the fixing flange 8 shown in fig. 3, the mark B is used for representing the mark A of the right polarization of the antenna, the circular polarizer 10 does not need to be detached, the horn 1 of any feed source is rotated through the loosening of the hexagon socket head cap screw 7, and the switching of the antenna polarization mode can be completed through the arrow marks on the joint waveguide 6 and the marks on the fixing flange 8. The feed source horn or the Transceiver body can be rotated without separating any feed source horn 1, circular polarizer 10 and Transceiver module Transceiver12, and only a hexagonal screw in a Transceiver fixing stud needs to be unscrewed by a tool without being disassembled, so that an arrow mark on the outer side of a transition waveguide aligns to a mark on a fixing flange, and then the hexagonal screw in the Transceiver fixing stud is screwed down, thereby realizing low-cost rapid polarization switching.
Drawings
Fig. 1 is an exploded schematic view of the polarization switching control device for the satellite antenna feed transition waveguide of the present invention.
Fig. 2 is a partial cross-sectional view of fig. 1.
Fig. 3 is a left side view of the transceiver module of fig. 1.
Fig. 4 is a front view of a backfeed source employing pin phase shifting.
Fig. 5 is a top view of fig. 4.
In the figure: 1. any feed source horn, 2.M3 socket head cap screw, 3. knurling flat head screw, 4. feed source clamp, 5. transition waveguide, 6. joint waveguide, 7. socket head cap screw, 8. fixed flange, 9. waveguide adapting flange, 10. circular polarizer, 11. pan head screw, 12. Transceiver module Transceiver, 13.F radio frequency female head, 14. radial bulge
Detailed Description
See fig. 1-3. In a preferred embodiment described below, a satellite antenna feed transition waveguide polarization switching control apparatus includes: the arbitrary feed source loudspeaker 1 is provided with a fixed flange 8 for assembling a waveguide adapting flange 9 and a circular polarizer 10 connected with the waveguide adapting flange 9 at the end through a transition waveguide 5 with the tail part axially connected with a corresponding flange plate. Arbitrary feed horn 1 passes through feed clamp 4 and fixes transition waveguide 5 on the support, transition waveguide 5 passes through 6 end connection waveguide adaptation flanges 9 of joint waveguide, 6 clearance fit connection mounting flange 8 pilot holes of joint waveguide, mounting flange 8 is the circular polarization ware 10 of adapter flange 9 connection, rotationally connect in mounting flange 8 centre bore, circular polarization ware 10 passes through the dish head screw that end to flange circumference circle matrix distribution and fixes on Transceiver module Transceiver12 corresponding position, assemble transition waveguide 5 polarization switching different frequency channel antenna feed's conversion controlling means.
A flange plate at one end of a transition waveguide 5 is connected with a flange corresponding to any feed source horn 1 through an inner hexagon screw 2, a transition waveguide adaptive flange 9 is connected with a circular polarizer 10 through a pan head screw 11 arranged in a circumferential circular array and is connected with the other end of a joint waveguide 6 inserted into a hole of a fixing flange 8 of the waveguide adaptive flange 9 in an interference fit mode, the transition waveguide adaptive flange and the circular polarizer can rotate together in a center hole of the fixing flange 8, the fixing flange 8 is fixed at a corresponding position of a Transceiver12 of a receiving and transmitting module through an inner hexagon screw 7, and finally the transition waveguide polarization switching control device shown in the section of figure 2 is assembled.
The upper end of the transition waveguide 5 is provided with a 30-degree chamfer angle towards two sides, a flange plate of the joint waveguide is matched with the feed source clamp 4, a flange at the bottom of the feed source clamp 4 is pushed into a hand, the corresponding clamping groove of the automatic portable antenna is fixed by a screw and is fixed together by a knurled flat head screw 3, and the clamping groove mode on the automatic portable antenna realizes the conversion of antenna feed sources with different frequency bands on the same antenna surface by the flange at the bottom of the feed source clamp 4 and the hand. Just so can open feed clamp 4 through knurling grub screw 3, turn round loose M4 hexagon socket head cap screw 7 with the hexagon socket head cap spanner, rotate arbitrary feed horn 1 according to the direction shown in figure 2, because of circular polarizer 10, waveguide adaptation flange 9, transition waveguide 5, arbitrary feed horn 1 links together each other, through the 0-180 rotation range draw-in groove of design in the transmission 12 hole of sending module, circular polarizer 10 in the transmission 12 of receiving module can together rotate along with arbitrary feed horn 1. In order to reduce reflection and ensure impedance matching, an impedance converter consisting of two transition sections with the length of lambda/4 is arranged in the circular-moment converter, and the circular polarizer 10 realizes impedance matching by arranging a transition section of a gradually-changed ridge waveguide on a waveguide body through a joint waveguide adapter.
For the most common single-reflection offset-feed antenna of the small portable antenna, the structural design of the antenna needs the same cross-path ratio to be adapted, which affects the selection of the user antenna. In order to avoid the model selection of the reflective offset feed type antenna, the size adaptive cross-ratio of the feed horn adopted by the embodiment is 0.8.
See fig. 3. The end face of the fixed flange 8 is marked with a mark A representing the left polarization of the antenna and a mark B representing the right polarization of the antenna. When the circular polarizer 10 is indirectly connected with the transition waveguide 5 through the flange of the joint waveguide 6, the radial protrusion 14 on the disk of the circular polarizer 10 passes through the clamping groove on the Transceiver module driver 12, and the identification arrow on the radial protrusion 14 on the circular polarizer 10 corresponds to the identification arrow on the joint waveguide 6 during assembly. In this draw-in groove internal rotation, so need not to demolish circular polarizer 10, through not hard up hexagon socket screw 7, rotate arbitrary feed loudspeaker 1, through arrow on the joint waveguide 6 and the rotatory sign of left and right polarization on the mounting flange 8 terminal surface, the signal is exported from F radio frequency female head 13, can accomplish the switching to the antenna polarization mode.
A circular-rectangular conversion section for gradually converting the circular waveguide to the rectangular waveguide is arranged in any feed source horn 1 to form a circular-rectangular converter, and the circular-rectangular converter is a section of conversion waveguide for connecting the circular waveguide and the rectangular waveguide in a matching manner. The circular-moment converter decomposes the polarized wave into two linear polarized waves with equal amplitude and polarization isolation, and the circularly polarized wave received by the feed horn changes the phase difference of the two linear polarized waves which can only receive the linear polarized waves into the in-phase difference received by the tuner through the rectangular waveguide. After the circular-moment converter is adopted, the shape of the waveguide is changed, impedance matching is guaranteed, and meanwhile, the stability of the polarization direction is facilitated. No matter receiving circularly polarized signals or linearly polarized signals, the receiving without polarization loss can be realized only by changing the butt joint condition of the flange plate between the circular-moment conversion waveguide and the phase shifter.
A90-degree phase shifter is adopted in a satellite receiving antenna to realize conversion from circular polarization to linear polarization. The circular-moment converter can receive circular polarization signals and linear polarization signals. When the medium piece is used for a feed-forward antenna, a medium piece made of high-alumina porcelain or polytetrafluoroethylene is used as a polarization medium for phase shifting, the polarization medium is fixed in a circular waveguide of a feed source, and the direction is the diameter direction of the circular waveguide, so that when an electric field parallel to the medium piece and an electric field vertical to the medium piece pass through the medium piece, the influence of the medium piece on the electric field of the parallel medium and the electric field vertical to the medium is greatly different due to the electromagnetic property of the medium piece, the phase speed of the electric fields in two directions is changed, the phase change of the electric field vertical to the medium is large, and the phase generates 90-degree phase shift, thereby realizing the conversion from circular polarization to linear polarization. When a circularly polarized wave downlink signal is received, circular linear polarization conversion can be carried out as long as a polarized dielectric sheet is inserted between the circular-moment converter and the high-frequency head; and removing the dielectric sheet to receive the linearly polarized signal, wherein both the linearly polarized signal and the linearly polarized signal can be considered. For a C-band tuner using linear polarization, an organic glass can be inserted as a dielectric sheet to receive circularly polarized signals; for C-band tuner and Ku-band tuner, a packing belt can be inserted to complete the linear-circular polarization conversion.
For the feedback source, the pin phase shift shown in fig. 4 and 5 is adopted. The transition waveguide 5 and the joint waveguide 6 are provided with radial symmetrical circle centers in the barrel body, pin phase shifters are arranged in a gradient manner along the hole wall bus line array to form a trapezoid from big to small, pins in the joint waveguide barrel body are installed, the depth in the waveguide is adjustable, and the pins are odd pairs. The depth of the pins is changed, so that the reactance property of an electric field parallel to the arrangement direction of the pins can be changed, and the reactance property can be changed from capacitive to inductive or from inductive to capacitive; and the electric field component perpendicular to the pin arrangement direction has little influence, and the position of the pin is adjusted to realize that the electric field parallel to the pin arrangement direction generates 90-degree phase shift, thereby realizing the conversion from circular polarization to linear polarization.
The foregoing is directed to the preferred embodiment of the present invention, and it is noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. A polarization switching control device for a satellite antenna feed transition waveguide comprises: arbitrary feed horn (1) corresponds transition waveguide (5) of ring flange axial connection through the afterbody, and mounting flange (8) of assembly waveguide adaptation flange (9), end are circular polarization ware (10) of waveguide adaptation flange (9), its characterized in that: arbitrary feed horn (1) passes through the hand through feed clamp (4), draw-in groove fixes transition waveguide (5) on the support on the automatic portable antenna, transition waveguide (5) are through joint waveguide (6) end connection waveguide adaptation flange (9), joint wave interference fit connects mounting flange (8) pilot hole, circular polarizer (10) that mounting flange (8) will transition waveguide adaptation flange (9) are connected, rotationally connect in mounting flange (8) centre bore, disc head screw that circular polarizer (10) distribute to flange circumference array through the end is fixed on Transceiver module Transceiver (12) corresponding position, assemble transition waveguide (5) polarization and switch the conversion controlling means of different frequency channel antenna feed.
2. The satellite antenna feed transition waveguide polarization switching control device of claim 1, wherein: the transition waveguide adaptive flange (9) is connected with a circular polarizer (10) through pan head screws (11) arranged in a circumferential circular array, is connected with the other end of the transition waveguide (5) inserted into holes of a fixing flange (8) of the waveguide adaptive flange (9) in an interference fit manner, can rotate in the center hole of the fixing flange (8) together, and is fixed on the corresponding position of a Transceiver module Transceiver (12) through an inner hexagonal screw (7) to assemble a transition waveguide polarization switching control device.
3. The satellite antenna feed transition waveguide polarization switching control device of claim 1, wherein: the upper end of the transition waveguide (5) is provided with a 30-degree chamfer towards two sides, a flange plate passing through the joint waveguide is matched with the feed source clamp (4), a flange at the bottom of the feed source clamp (4) is pushed into a hand, the corresponding clamping groove of the automatic portable antenna is fixed by a screw and is fixed together by a knurled flat head screw (3), and the switching of antenna feed sources with different frequency bands on the same antenna surface is realized by the flange at the bottom of the feed source clamp (4) and the hand in a clamping groove mode on the automatic portable antenna.
4. The satellite antenna feed transition waveguide polarization switching control device of claim 1, wherein: a clamping groove with a rotation range of 0-180 degrees is arranged in an inner hole of the Transceiver module Transceiver (12), and a circular polarizer (10) assembled in the Transceiver module Transceiver (12) rotates along with any feed source loudspeaker (1).
5. The satellite antenna feed transition waveguide polarization switching control device of claim 1, wherein: in order to reduce reflection and ensure impedance matching, an impedance converter consisting of two transition sections with the length of lambda/4 is arranged in a circular moment converter of the circular polarizer (10), and the circular polarizer (10) realizes impedance matching by arranging a transition section of a gradually-changed ridge waveguide on a waveguide body through an articulated waveguide adapter.
6. The satellite antenna feed transition waveguide polarization switching control device of claim 1, wherein: the size adaptive cross-section ratio of the feed source horn is 0.8.
7. The satellite antenna feed transition waveguide polarization switching control device of claim 1, wherein: the end face of the fixed flange (8) is marked with a mark A representing the left polarization of the antenna and a mark B representing the right polarization of the antenna, the circular polarizer (10) passes through a flange plate of the joint waveguide (6), when the circular polarizer is indirectly connected with the transition waveguide (5), a radial bulge (14) on the disk of the circular polarizer (10) passes through a clamping groove on a Transceiver module Transceiver (12), and an arrow on the radial bulge (14) on the circular polarizer (10) corresponds to an arrow on the joint waveguide (6) during assembly; and the antenna is rotated in the clamping groove, and the switching of the antenna polarization mode is completed through an arrow on the joint waveguide (6) and left and right polarization rotation marks on the end surface of the fixed flange (8).
8. The satellite antenna feed transition waveguide polarization switching control device of claim 1, wherein: a circular-rectangular transformation section which gradually transforms the circular waveguide to the rectangular waveguide is arranged in any feed source horn (1) to form a circular-rectangular converter, and the circular-rectangular converter is a section of transition waveguide which connects the circular waveguide and the rectangular waveguide in a matching manner.
9. The satellite antenna feed transition waveguide polarization switching control device of claim 1, wherein: when the feed-forward antenna is used for a feed-forward antenna, a dielectric sheet made of high-alumina porcelain or polytetrafluoroethylene is used as a polarization medium for phase shifting, the polarization medium is fixed in a circular waveguide of a feed source, and the direction is the diameter direction of the circular waveguide.
10. The satellite antenna feed transition waveguide polarization switching control device of claim 1, wherein: the transition waveguide (5) and the joint waveguide (6) are internally provided with radial symmetrical circle centers, pin phase shifters which are gradually arranged into a trapezoid shape from big to small along a hole wall bus line array are arranged, pins in the joint waveguide cylinder are installed, the depth in the waveguide is adjustable, and the pin phase shifters are odd pairs.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007194A (en) * | 2021-03-16 | 2021-06-22 | 四川领航未来通信技术有限公司 | Quick detach interconnection device |
| CN114361809A (en) * | 2021-12-31 | 2022-04-15 | 苏州阿清智能科技有限公司 | Ku and ka dual-frequency receiving and transmitting assembly fast switching device |
| CN116914441A (en) * | 2023-09-14 | 2023-10-20 | 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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2020
- 2020-08-17 CN CN202021702363.7U patent/CN212542699U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007194A (en) * | 2021-03-16 | 2021-06-22 | 四川领航未来通信技术有限公司 | Quick detach interconnection device |
| CN114361809A (en) * | 2021-12-31 | 2022-04-15 | 苏州阿清智能科技有限公司 | Ku and ka dual-frequency receiving and transmitting assembly fast switching device |
| CN116914441A (en) * | 2023-09-14 | 2023-10-20 | 迪泰（浙江）通信技术有限公司 | Satellite antenna spin polarization switching method based on Ka band planar array |
| 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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