A fully automatic portable satellite antenna capable of quickly switching between Kaku dual frequencies

Abstract

This invention discloses a fully automatic portable satellite antenna capable of quickly switching between Ka / Ku dual frequencies. It includes a tri-mode controller, a first cable interface electrically connected to it, and a limiting slot at its end. A fixed plate has a plug-in portion that slides into the limiting slot and a second cable interface electrically connected to the Ka / Ku feed assembly. The second cable interface moves synchronously with the plug-in portion and is located behind it along the sliding direction of the plug-in portion. An entry port for inserting the plug-in portion into the limiting slot is opened on one side wall of the tri-mode controller, and the first cable interface is located on the same side of the tri-mode controller as the entry port. The second cable interface is directly opposite the first cable interface along a direction perpendicular to the sliding direction of the plug-in portion and is inserted into the first cable interface along the sliding direction of the plug-in portion. The limiting slot has a locking mechanism for locking the plug-in portion. This eliminates the need for separate cable connection, ensuring quick and easy switching for the user, and ensuring communication quality is unaffected by external forces.

Description

Technical Field

[0001] This invention relates to the field of satellite communication technology, and in particular to a fully automatic portable satellite antenna capable of quickly switching between Kaku dual frequencies. Background Technology

[0002] Ka and Ku bands are two frequency bands commonly used for satellite communications. The Ka band roughly ranges from 18.7 GHz to 30.0 GHz, offering ample bandwidth and allowing for very small equipment size. Therefore, Ka-band satellite communication systems can provide a novel means for new services such as high-speed satellite communication, gigabit-level broadband digital transmission, high-definition television (HDTV), satellite news gathering (SNG), and personal satellite communication. The disadvantages of the Ka band include significant rain attenuation and higher requirements for components and manufacturing processes.

[0003] The Ku-band frequency typically ranges from 10.95 to 14.5 GHz. Utilizing multi-feed shaped beamforming technology, it provides effective coverage within its own country and is less susceptible to microwave interference. Ku-band downlink transponders offer high transmission power and concentrated energy, facilitating reception. Ku-band satellite digital broadcasting uplink systems employ uplink power control measures to automatically compensate for or eliminate the attenuation effects of rain, snow, clouds, and fog on the uplink signal. Furthermore, Ku-band satellites support point-to-point data transmission, ensuring high security.

[0004] China has a complex geographical environment and is prone to geological disasters, especially earthquakes and floods, which can easily damage terrestrial communication networks. Satellite communication is a very effective means of emergency communication. Communication speed, stability, security, and reliability are important indicators of satellite communication quality. Considering the characteristics of Ka and Ku bands, single-band satellite communication methods cannot meet the needs of emergency communication in various complex environments. Dual-band portable satellite communication equipment can effectively solve this problem.

[0005] Currently, both domestic and international satellite stations primarily operate on a single frequency band. While some manufacturers have launched Ka / Ku dual-band switching antennas, most dual-band switching structures cannot be freely switched in the field. Operation is complex, requiring the carrying of tools and numerous accessories, resulting in bulky and inconvenient equipment. Replacement requires hardware and software changes (generally, system software requires on-site or remote support from the manufacturer), leading to lengthy processing times. Furthermore, cable connections are necessary, and the cables, with their pre-designed bending radius, are aesthetically unappealing and prone to tangling. The complex structure also makes installation difficult, resulting in limited emergency response time. The switching time of the dual-band switching structure directly impacts the overall satellite alignment success time, directly affecting the timing of rescue intervention and potentially causing greater losses by missing the optimal rescue window. Therefore, there is an urgent need for a simple and quick Ka / Ku dual-band switching structure that is reliable, simple, and wind-stable, effectively solving the aforementioned problems. Summary of the Invention

[0006] The purpose of this invention is to provide a fully automatic portable satellite antenna that can quickly switch between Kaku dual frequencies, thereby solving the problems existing in the prior art. It is simple to install and operate, requires no separate connection cable, has a simple overall circuit connection structure, and has no external cables. It can ensure that users can switch quickly and easily, and ensure that the communication quality is not affected by external forces.

[0007] To achieve the above objectives, the present invention provides the following solution: The present invention provides a fully automatic portable satellite antenna capable of quickly switching between Ka / Ku dual frequencies, including a tri-mode controller for installing a Ka / Ku feed assembly. The tri-mode controller is provided with a first cable interface electrically connected to it and a limiting slot located at its end. The limiting slot is equipped with a fixing plate installed on the Ka / Ku feed assembly. The fixing plate is provided with a plug-in part that slides into the limiting slot and a second cable interface electrically connected to the Ka / Ku feed assembly. The second cable interface moves synchronously with the plug-in part and is located behind it along the sliding direction of the plug-in part. An entry port for inserting the plug-in part into the limiting slot is opened on one side wall of the tri-mode controller, and the first cable interface is located on the same side of the tri-mode controller side wall as the entry port. The second cable interface is arranged opposite to the first cable interface along the direction perpendicular to the sliding of the plug-in part and is inserted into the first cable interface along the sliding direction of the plug-in part. The limiting slot is provided with a locking mechanism for locking the plug-in part.

[0008] Preferably, the first cable interface is located on the side of the bottom of the groove away from the plug portion, and its orientation is opposite to the direction in which the plug portion slides.

[0009] Preferably, the second cable interface is located on the side of the fixing plate away from the Ka / Ku feed assembly, and its orientation is the same as the direction in which the plug portion slides.

[0010] Preferably, a first positioning area is provided between the limiting slot and the first cable interface, and a second positioning area is provided between the fixing plate and the second cable interface. A plurality of pairs of tightly fitted positioning blocks and positioning grooves are provided between the first positioning area and the second positioning area, and each pair of positioning blocks and positioning grooves are spaced apart along a direction perpendicular to the sliding of the fixing plate.

[0011] Preferably, both the positioning block and the positioning groove are wedge-shaped structures that are structurally adapted, and both inner walls of the positioning groove along the thickness direction of the limiting slot are sloped surfaces, or one of the inner walls of the two positioning grooves is a sloped surface.

[0012] Preferably, the limiting slot has inner walls on both sides along its width direction, and each inner wall of the slot slides against both sides of the insertion part along its width direction.

[0013] Preferably, each of the card slots has a baffle extending along the sliding direction of the fixing plate on its inner wall. The fixing plate abuts against the bottom of the limiting card slot, and the baffle abuts against the side of the fixing plate away from the bottom of the limiting card slot.

[0014] Preferably, the end of the plug portion away from the second cable socket is provided with a hook, the hook is located on the side of the plug portion near the bottom of the limiting slot, the bottom of the limiting slot is provided with a locking groove for accommodating the hook and allowing it to move, and the locking mechanism is detachably connected between the locking groove and the hook.

[0015] Preferably, the locking mechanism is a locking screw rotatably connected to the side wall of the locking groove, and the hook has a threaded hole for the locking screw to be connected and locked.

[0016] Preferably, the fixing plate corresponding to the Ku feed assembly is detachably connected to the feed base of the Ku feed assembly, and the fixing plate corresponding to the Ka feed assembly is detachably connected to the Ka transceiver of the Ka feed assembly.

[0017] The present invention achieves the following technical effects compared to the prior art:

[0018] First, when a quick switch between Ka / Ku feed assemblies is required, since both Ka and Ku feed assemblies are equipped with the same mounting plate, and the three-mode controller on which the Ka / Ku feed assemblies are installed has a limiting slot, after removing the original feed assembly from the three-mode controller, the Ka or Ku feed assembly can be directly inserted into the limiting slot via the mounting plate and its connector. The limiting slot has a limiting and guiding function for the mounting plate and its connector, allowing them to be inserted and mated in the same direction. Therefore, the second cable interface is positioned directly opposite the first cable interface along the direction perpendicular to the sliding of the connector. When the second cable interface slides into the limiting slot with the connector, it can be directly inserted into the first cable interface along the sliding direction of the connector. That is, the Ka / Ku feed assembly can be completed through the cooperation of the mounting plate, the connector, and the limiting slot. The installation of the component on the tri-mode controller allows for the connection of the first and second cable interfaces via the sliding of the plug-in part. This eliminates the need for bolts in existing technologies to connect the Ka / Ku feed assembly to the tri-mode controller, which still requires connecting cables and a reserved rotation radius for electrical connection. After connecting the plug-in part to the limiting slot, only a locking mechanism is needed to lock both. The overall structure and operation are simple, requiring no separate connecting cables. The overall circuit connection structure is simple, with no external cables, ensuring quick and easy switching for users. The limiting slot guides the plug-in part while limiting its position. The locking mechanism further stabilizes the connection between the Ka / Ku feed assembly, its mounting plate, and the tri-mode controller, ensuring that communication quality is not affected by external forces.

[0019] Secondly, a first positioning area is provided between the limiting slot and the first cable interface, and a second positioning area is provided between the fixing plate and the second cable interface. Several pairs of tightly fitted positioning blocks and positioning slots are provided between the first positioning area and the second positioning area, and each pair of positioning blocks and positioning slots are distributed at intervals along the direction perpendicular to the sliding of the fixing plate. Through the positioning blocks and positioning slots provided between the first positioning area and the second positioning area, after the plug-in part slides into the limiting slot, the plug-in part and the limiting slot can be equipped and positioned by the plug-in cooperation of the positioning blocks and positioning slots, and can further ensure the stability of the connection between the Ka / Ku feed assembly and its fixing plate and the three-mode controller.

[0020] Third, both the positioning block and the positioning groove are wedge-shaped structures that are structurally compatible. The two inner walls of the positioning groove along the thickness direction of the limiting groove are both slopes, or one of the two inner walls of the positioning groove is a slope. On the one hand, by setting the positioning block and the positioning groove in a wedge shape, the two are more tightly connected. On the other hand, since the slope of the positioning groove is the inner wall of the positioning groove along the thickness direction of the limiting groove, the limiting groove positions the fixing plate along the width direction, and the positioning groove positions the positioning block and the fixing plate along the thickness direction, further ensuring the stability of the connection between the fixing plate and the limiting groove.

[0021] Fourth, the limiting slot has inner walls on both sides along its width direction. Each inner wall slides against both sides of the insertion part along its width direction. The limiting slot can limit and guide the insertion part by sliding the inner wall of the limiting slot with the insertion part. The structure is simple and easy to process. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the satellite station with Ku-feed assembly according to the present invention;

[0024] Figure 2 This is a schematic diagram of the main structure of the satellite station of the present invention;

[0025] Figure 3 This is a schematic diagram showing the connection between the three-mode controller and the Ku-feed component of the present invention;

[0026] Figure 4 This is a schematic diagram of the Ku-type feed component of the present invention assembled into a three-mode controller;

[0027] Figure 5 This is an isometric view of the overall structure of the Ku-type feed assembly of the present invention;

[0028] Figure 6 This is an exploded view of the overall structure of the Ku-type feed assembly of the present invention;

[0029] Figure 7 Axonometric view of the overall structure of the Ka feed assembly of this invention Figure 1 ;

[0030] Figure 8 Axonometric view of the overall structure of the Ka feed assembly of this invention Figure 2 ;

[0031] Figure 9This is an exploded view of the overall structure of the Ka feed assembly of the present invention;

[0032] Figure 10 This is a schematic diagram of the limiting slot structure of the three-mode controller of the present invention. Figure 1 ;

[0033] Figure 11 This is a schematic diagram of the limiting slot structure of the three-mode controller of the present invention. Figure 2 ;

[0034] Figure 12 This is a schematic diagram of the installation of the fixing plate and the feed seat of the present invention;

[0035] Figure 13 This is a diagram showing the cable routing on the Ka feed assembly of the present invention;

[0036] Among them, 1-Feed horn, 2-Reflector center disk, 3-Waveguide port thin film gasket, 4-PTFE film, 5-Horn port waveguide, 6-Ku transceiver, 7-Feed base, 8-Turbine, 9-Feed base end cover, 10-Polypotentiometer, 11-Polypotentiometer adapter, 12-Worm bearing housing, 13-Worm bearing, 14-Tri-mode controller, 15-Docking waveguide, 16-Bearing baffle, 17-Circular polarizer, 18- Ka transceiver, 19-mounting adapter plate, 20-mounting support frame, 21-fixed plate, 22-plug part, 23-socket part, 24-servo motor, 25-worm gear, 26-base, 27-Ku feed assembly, 28-limiting slot, 29-positioning slot, 30-hook, 31-first cable interface, 32-locking screw, 33-second cable interface, 34-positioning block, 35-locking slot, 36-cable. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] The purpose of this invention is to provide a fully automatic portable satellite antenna that can quickly switch between Kaku dual frequencies, thereby solving the problems existing in the prior art. It is simple to install and operate, requires no separate connection cable, has a simple overall circuit connection structure, and has no external cables. It can ensure that users can switch quickly and easily, and ensure that the communication quality is not affected by external forces.

[0039] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] like Figures 1 to 13 As shown, this embodiment provides a fully automatic portable satellite antenna capable of quickly switching between Ka / Ku dual frequencies. It includes a tri-mode controller for mounting a Ka / Ku feed assembly, and a base 26 for supporting the tri-mode controller and the Ka / Ku feed assembly. The tri-mode controller has a first cable interface 31 for electrical connection and a limiting slot 28 at its end. The limiting slot 28 is fitted with a fixing plate 21 mounted on the Ka / Ku feed assembly. The fixing plate 21 has a slidable insertion part that connects to the limiting slot 28 and a connection point with the Ka / Ku feed assembly. The second cable interface 33, which is electrically connected between the two, moves synchronously with the plug-in part and is located behind it along the sliding direction of the plug-in part. An entry port for the plug-in part to be inserted into the limiting slot 28 is provided on one side wall of the three-mode controller. The first cable interface 31 is located on the same side of the three-mode controller side wall as the entry port. The second cable interface 33 is positioned directly opposite the first cable interface 31 along the direction perpendicular to the sliding of the plug-in part, and it is inserted into the first cable interface 31 in the opposite direction along the sliding direction of the plug-in part. The limiting slot 28 is provided with a locking mechanism for locking the plug-in part. It should be noted that the fixing plate 21 and locking mechanism connected to the three-mode controller for the Ka feed assembly and Ku feed assembly 27 are identical, allowing for flexible dual-frequency switching according to the site conditions. The three-mode controller contains three different modem cards.

[0041] When a quick switch between Ka / Ku feed components is required, since both the Ka and Ku feed components 27 are equipped with the same fixing plate 21, and the three-mode controller on which the Ka / Ku feed components are installed has a limiting slot 28, after removing the original feed component from the three-mode controller, the Ka or Ku feed component 27 can be directly inserted into the limiting slot 28 through the fixing plate 21 and its plug-in part. The limiting slot 28 has a limiting and guiding function for the fixing plate 21 and its plug-in part, allowing them to be inserted and mated in the same direction. Therefore, the second cable interface 33 is set opposite to the first cable interface 31 in the direction perpendicular to the sliding of the plug-in part. When the second cable interface 33 slides into the limiting slot 28 with the plug-in part, it can be directly inserted into the first cable interface 31 in the sliding direction of the plug-in part. That is, the Ka / Ku feed component can be switched through the cooperation of the fixing plate 21 and the plug-in part with the limiting slot 28. The structural installation of the Ka / Ku feed assembly and the tri-mode controller allows for the connection of the first cable interface 31 and the second cable interface 33 via the sliding of the plug-in part. This eliminates the need for bolts in existing technologies to connect the Ka / Ku feed assembly and the tri-mode controller, which still require a docking cable 36 with a reserved rotation and bend radius for electrical connection. After the plug-in part is connected to the limiting slot 28, only a locking mechanism is needed to lock them together. The overall structure and operation are simple, eliminating the need for a separate docking cable 36. The overall circuit connection structure is also simple, with no external cable 36. This ensures quick and easy switching for users. The limiting slot 28 guides the plug-in part and limits its position. The locking mechanism further stabilizes the connection between the Ka / Ku feed assembly, its fixing plate 21, and the tri-mode controller, ensuring that communication quality is not affected by external forces.

[0042] When it is necessary to replace the satellite system with a different frequency band (Ka feed assembly and Ku feed assembly 27 are interchangeable) during use, follow these steps: First, remove the antenna surface and feed horn 1 of the currently used antenna; Second, loosen the locking knob of the RF structure, hold the equipment component with both hands, and lift it off the currently used feed assembly with a little upward force; Third, take out the RF component to be replaced from the RF component accessory package or transport box; Fourth, align the second cable interface 33 of the feed assembly with the first cable interface 31 of the tri-mode controller on the host and insert it, apply a little downward force with both hands to tighten the interface, and lock the feed assembly with the locking knob;

[0043] In a preferred embodiment of the present invention, the first cable interface 31 is located on the side of the groove bottom away from the plug-in portion, and its orientation is opposite to the sliding direction of the plug-in portion. The second cable interface 33 is located on the side of the fixing plate 21 away from the Ka / Ku feed assembly, and its orientation is the same as the sliding direction of the plug-in portion. This facilitates the effective insertion of the first cable interface 31 and the second cable interface 33 together as the plug-in portion slides. Preferably, the first cable interface 31 and the second cable interface 33 have the same structure, both including a plug portion 22 and a socket portion 23. The plug portion 22 is welded with a cable and is detachably connected to one end of the socket portion 23 by screws or the like. The cable of the plug portion 22 is led out from the other end of the socket portion 23, and the socket portion 23 is then installed on the fixing plate 21 or the main structure of the three-mode controller. The socket portions 23 of the first cable interface 31 and the second cable interface 33 are snapped together, and the plug portions 22 of both have a pin and socket structure that interlocks with each other. Preferably, both the plug portion 22 and the socket portion 23 use aviation plugs and aviation sockets. It should be noted that after the cable of the plug part 22 is led out from the other end of the socket part 23, it is electrically connected to the two coaxial cables 36 of the Ka / Ku transceiver 6, the cable 36 of the servo motor 24, and the cable 36 of the potentiometer 10. The main structure of the transceiver on the Ka / Ku feed assembly and the feed base 7 are provided with cable trays for embedding each cable 36. Each cable 36 is routed along the designed cable trays to maintain the simplicity of the wiring of the entire device.

[0044] Furthermore, a first positioning area is provided between the limiting slot 28 and the first cable interface 31, and a second positioning area is provided between the fixing plate 21 and the second cable interface 33. Several pairs of tightly fitted positioning blocks 34 and positioning grooves 29 are provided between the first positioning area and the second positioning area, and each pair of positioning blocks 34 and positioning grooves 29 are distributed at intervals along the direction perpendicular to the sliding of the fixing plate 21. Through the positioning blocks 34 and positioning grooves 29 provided between the first positioning area and the second positioning area, after the plug-in part slides into the limiting slot 28, the fitting and positioning of the plug-in part and the limiting slot 28 can be completed through the plug-in cooperation of the positioning blocks 34 and positioning grooves 29, which can further ensure the stability of the connection between the Ka / Ku feed assembly and its fixing plate 21 and the three-mode controller.

[0045] Furthermore, both the positioning block 34 and the positioning groove 29 are wedge-shaped structures that are structurally compatible. The two inner walls of the positioning groove 29 along the thickness direction of the limiting groove 28 are both slopes, or one of the two inner walls of the positioning groove 29 is a slope. On the one hand, by setting the positioning block 34 and the positioning groove 29 in a wedge shape, the two are more tightly connected. On the other hand, since the slope of the positioning groove 29 is the inner wall of the positioning groove 29 along the thickness direction of the limiting groove 28, the limiting groove 28 positions the fixing plate 21 along the width direction, and the positioning groove 29 positions the positioning block 34 and the fixing plate 21 along the thickness direction, further ensuring the stability of the connection between the fixing plate 21 and the limiting groove 28.

[0046] As a preferred embodiment of the present invention, the limiting slot 28 has inner walls on both sides along its width direction, and each inner wall slides against both sides of the insertion part along its width direction. The limiting slot 28 can limit and guide the insertion part by sliding the inner wall of the limiting slot 28 with the insertion part. The structure is simple and easy to process.

[0047] Furthermore, each slot has a baffle extending along the sliding direction of the fixed plate 21 on its inner wall. The fixed plate 21 abuts against the bottom of the limiting slot 28, and the baffle abuts against the side of the fixed plate 21 away from the bottom of the limiting slot 28. This allows the fixed plate 21 to be stably inserted between the baffle and the bottom of the limiting slot 28, preventing wobbling and other adverse phenomena after the two are inserted together.

[0048] Furthermore, a hook 30 is provided at the end of the plug-in part away from the second cable socket. The hook 30 is located on the side of the plug-in part near the bottom of the limiting slot 28. A locking groove 35 is provided on the bottom of the limiting slot 28 to accommodate the hook 30 and allow it to move. A locking mechanism is detachably connected between the locking groove 35 and the hook 30. The hook 30 is provided to facilitate the locking connection between the plug-in part and the limiting slot 28. Preferably, the locking mechanism is a locking screw 32 rotatably connected to the side wall of the locking groove 35. The hook 30 is provided with a threaded hole for the locking screw 32 to be connected and locked. The entire locking mechanism is simple and convenient. By rotating the locking screw 32, it can be quickly plugged in and locked in the threaded hole to complete the locking between the fixing plate 21 and the limiting slot 28.

[0049] Furthermore, since the Ku transceiver 6 in the Ku feed assembly 27 is always in a rotating state, the fixing plate 21 corresponding to the Ku feed assembly 27 is detachably connected to the feed base 7 of the Ku feed assembly 27. Since the Ka transceiver 18 in the Ka feed assembly is always in a fixed state, the fixing plate 21 corresponding to the Ka feed assembly is detachably connected to the Ka transceiver 18 of the Ka feed assembly. Preferably, a mounting support frame 20 is provided between the fixing plate 21 corresponding to the Ka feed assembly and the Ka transceiver 18 to maintain the distance between the fixing plate 21 and the Ka transceiver 18 and prevent the fixing plate 21 from blocking the rotation of the rotating parts in the Ka feed assembly.

[0050] The Ku feed assembly 27 mainly consists of a Ku transceiver 6, a polarization drive assembly, a reflector center plate 2, and a feed horn 1. The Ka feed assembly mainly consists of a Ka transceiver 18, a polarization drive assembly, a reflector center plate 2, and a Ka feed horn 1. The specific structural connection relationship of the Ka / Ku feed assemblies is as follows: the feed base 7 houses the transmission structure, drive motor, and other components. A fixing plate 21 is mounted on the feed base 7, and a second cable interface 33 is provided on the fixing plate 21. The reflector center plate 2, the horn, and the transceiver are connected to each end of the feed base 7. The reflector can be connected to the center plate via hinges.

[0051] When installing the Ka feed assembly, S1: Connect the mounting adapter plate 19 to the Ka transceiver 18 with screws, and then connect the mounting support frame 20 to the Ka transceiver 18 with screws; S2: Weld the cable 36 onto the connector, then fix the connector to the connector with screws, lead the cable 36 out from the other end of the connector, and then fix the connector to the mounting plate 21 with screws; S3: First fix the bearing at the horn end to the feed base 7, then pass the horn waveguide 5 through the bearing, and after installation, install the turbine 8, the docking waveguide 15, and the bearing from the reverse side according to the positioning structure, and then tighten with screws. Then install the bearing baffle 16 and fix it with screws to prevent the bearing from moving. Then install the reflector center plate 2 at the horn waveguide end and fix it with screws. Then, install the PTFE film 4 and waveguide film gasket 3 sequentially at the horn waveguide port end, and then fix them with screws; S4: Install the worm 25 from the right side of the feed seat 7 into position to mesh with the turbine 8, and fix the worm bearing seat 12 with the worm bearing 13 from both the left and right ends of the worm 25 with screws respectively. Then install the servo 24 from the right side of the feed seat 7 into position, and fix the feed seat end cover 9 with screws. The right side installation is complete. Then install the potentiometer adapter 11 with the potentiometer 10 pre-installed from the left side into position, fix it with screws, and finally fix the feed seat end cover 9 with screws;

[0052] S5: Fix the polarizer to the bearing baffle 16 side of the polarization seat with screws, then fix the Ka transceiver 18 assembled in step S1 with screws, and finally fix the feed horn 1 in place by rotating it with threads. At this point, the Ka feed assembly is completed.

[0053] Furthermore, the rotation principle of the Ka feed assembly: The polarization rotation of the Ka feed assembly is achieved by fixing the Ka transceiver 18 and rotating the circular polarizer 17 to achieve the required polarization angle. As described in the Ka feed assembly installation step S1, the Ka transceiver 18 is fixed to the feed base 7. The circular polarizer 17 is fixed together with the docking waveguide 15, the horn waveguide 5, the turbine 8, and the feed horn 1 of the Ka transceiver 18, rotating around the axis. The servo motor 24 is connected to the worm gear 25 and the potentiometer 10 through bearings and other related structural components, rotating around the axis of the worm gear 25. After the Ka feed assembly is powered on, upon receiving the rotation command from the system, the servo motor 24 starts to drive the shafts of the worm gear 25 and the potentiometer 10 to rotate together. Then, the worm gear 25, through meshing with the turbine 8, drives the circular polarizer 17 connected to the turbine 8 to rotate together. During the rotation process, the potentiometer 10 will promptly feed back the rotation angle to the system to determine whether the rotation is in place.

[0054] When installing the Ku-type feed assembly 27, S1, weld the cable 36 onto the connector, then fix the connector to the connector with screws. Run the cable 36 out from the other end of the connector and then fix it to the mounting plate 21 with screws. S2, first fix the bearing at the horn end to the feed base 7, then pass the horn waveguide 5 through the bearing. After installation, install the turbine 8, the docking waveguide 15 for the Ku-type transceiver 6, and the bearing from the reverse side according to the positioning structure, and then tighten with screws. Then install the bearing baffle 16 and fix it with screws to prevent bearing movement. Finally, install the reflector center plate 2 at the horn waveguide end and fix it with screws. Next, connect the Ku transceiver 6 to its corresponding waveguide port, and then fix it to the docking waveguide 15 of the Ku transceiver 6 with screws from the horn end. Then, install the PTFE film 4 and the waveguide port film gasket 3 in sequence at the horn waveguide end, and then fix them with screws; S3, install the worm gear 25 from the right side of the feed seat 7 and engage it with the turbine 8. Fix the worm bearing seat 12 with the worm bearing 13 from both the left and right ends of the worm gear 25 with screws. Then install the servo motor 24 from the right side of the feed seat 7, and fix the feed seat end cover 9 with screws. The right side installation is complete. Then install the potentiometer adapter 11 with the potentiometer 10 pre-installed from the left side and fix it with screws. Finally, fix the feed seat end cover 9 with screws; S4, fix the Ku transceiver 6 assembled in step S1 with screws. Finally, fix the feed horn 1 in place by rotating it with threads. At this point, the Ku feed assembly 27 is assembled.

[0055] Furthermore, the rotation principle of the Ku feed assembly 27 is as follows: the polarization rotation of the Ku is achieved by rotating the Ku transceiver 6, thus reaching the required angle for polarization rotation. The Ku transceiver 6 is fixed together with the docking waveguide 15, the horn waveguide 5, the turbine 8, and the feed horn 1, rotating around its axis; the servo motor 24 is connected to the worm gear 25 and the potentiometer 10 through bearings and other related structural components, rotating around the axis of the worm gear 25; after the Ku feed assembly 27 is powered on, upon receiving the rotation command from the system, the servo motor 24 begins to drive the shafts of the worm gear 25 and the potentiometer 10 to rotate together. Then, the worm gear 25, through meshing with the turbine 8, drives the Ku transceiver 6 connected to the turbine 8 to rotate together. During the rotation process, the potentiometer 10 will promptly feed back the rotation angle to the system to determine whether the rotation is complete.

[0056] Any adaptive changes made according to actual needs are within the scope of protection of this invention.

[0057] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0058] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A fully automatic portable satellite antenna capable of quickly switching between Kaku and Ku frequencies, characterized in that, The system includes a three-mode controller for mounting a Ka / Ku feed assembly. The three-mode controller has a first cable interface for electrical connection and a limiting slot at its end. The limiting slot is fitted with a fixing plate mounted on the Ka / Ku feed assembly. The fixing plate has a plug-in portion that slides into the limiting slot and a second cable interface for electrical connection with the Ka / Ku feed assembly. The second cable interface moves synchronously with the plug-in portion and is located behind it along the sliding direction of the plug-in portion. An entry port for the plug-in portion to be inserted into the limiting slot is provided on one side wall of the three-mode controller. The first cable interface is located on the same side of the three-mode controller side wall as the entry port. The second cable interface is positioned opposite the first cable interface along the sliding direction perpendicular to the plug-in portion and is inserted into the first cable interface along the sliding direction of the plug-in portion. The limiting slot has a locking mechanism for locking the plug-in portion.

2. The fully automatic portable satellite antenna capable of quickly switching between Kaku dual frequencies as described in claim 1, characterized in that, The first cable interface is located on the side of the bottom of the limiting slot away from the plug-in part, and its orientation is opposite to the direction in which the plug-in part slides.

3. The fully automatic portable satellite antenna capable of quickly switching between Kaku dual frequencies as described in claim 2, characterized in that, The second cable interface is located on the side of the fixing plate away from the Ka / Ku feed assembly, and its orientation is the same as the direction in which the plug slides.

4. The fully automatic portable satellite antenna capable of quickly switching between Kaku dual frequencies as described in claim 2 or 3, characterized in that, A first positioning area is provided between the limiting slot and the first cable interface, and a second positioning area is provided between the fixing plate and the second cable interface. A plurality of pairs of tightly fitted positioning blocks and positioning grooves are provided between the first positioning area and the second positioning area, and each pair of positioning blocks and positioning grooves are distributed at intervals along a direction perpendicular to the sliding of the fixing plate.

5. The fully automatic portable satellite antenna capable of quickly switching between Kaku dual frequencies according to claim 4, characterized in that, Both the positioning block and the positioning groove are wedge-shaped structures that are structurally adapted. The two inner walls of the positioning groove along the thickness direction of the limiting slot are both slopes, or one of the inner walls of the two positioning grooves is a slope.

6. The fully automatic portable satellite antenna capable of quickly switching between Kaku dual frequencies according to claim 5, characterized in that, The limiting slot has inner walls on both sides along its width direction, and each inner wall of the slot slides against both sides of the insertion part along its width direction.

7. The fully automatic portable satellite antenna capable of quickly switching between Kaku dual frequencies according to claim 6, characterized in that, Each of the card slots has a stop bar extending along the sliding direction of the fixing plate on its inner wall. The fixing plate abuts against the bottom of the limiting card slot, and the stop bar abuts against the side of the fixing plate away from the bottom of the limiting card slot.

8. The fully automatic portable satellite antenna capable of quickly switching between Kaku dual frequencies according to claim 7, characterized in that, The end of the plug-in portion away from the second cable socket is provided with a hook. The hook is located on the side of the plug-in portion near the bottom of the limiting slot. The bottom of the limiting slot is provided with a locking groove for accommodating the hook and allowing it to move. The locking mechanism is detachably connected between the locking groove and the hook.

9. The fully automatic portable satellite antenna capable of quickly switching between Kaku dual frequencies according to claim 8, characterized in that, The locking mechanism is a locking screw that is rotatably connected to the side wall of the locking groove, and the hook has a threaded hole for the locking screw to be connected and locked.

10. The fully automatic portable satellite antenna capable of quickly switching between Kaku dual frequencies according to claim 9, characterized in that, The fixing plate corresponding to the Ku feed assembly is detachably connected to the feed base of the Ku feed assembly, and the fixing plate corresponding to the Ka feed assembly is detachably connected to the Ka transceiver of the Ka feed assembly.

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