Ku / Ka dual-frequency shared automatic portable communication antenna

Abstract

The application discloses a Ku / Ka dual-frequency shared automatic portable communication antenna and belongs to the technical field of antennas, which comprises a feed source, an antenna reflecting surface, a microwave network, an antenna seat frame, a supporting leg and the like. The application adopts a Ku / Ka integrated feed source, a microwave network and an antenna reflecting surface, and frequency band switching is realized through a dial lever type frequency band switching switch, so that the operation is simple and efficient. The high-precision split antenna surface is adopted, the split surface panels have high consistency, the panel interchanging can be realized, the positioning is realized through a pressing plate, the lock catch is locked, and the rapid assembly can be realized. The antenna seat frame adopts a novel integrated transmission mechanism, the transmission mechanism has the characteristics of small size and light weight, space is left out to realize the integrated design of the antenna seat frame and a terminal, and the antenna appearance design implements the industrial design concept and the hidden cable design, and the modeling is beautiful.

Description

Technical Field

[0001] This invention relates to the field of antenna technology, and in particular to an automatic portable communication antenna that supports both Ku / Ka bands. Background Technology

[0002] In recent years, the demand for Ku / Ka dual-band antennas has been increasing. Traditional Ku / Ka dual-band antennas have the following characteristics:

[0003] 1. The use of two independent feed networks and antenna reflectors necessitates the disassembly and reassembly of these components when switching frequency bands, which cannot meet the requirements for rapid frequency switching. Furthermore, the structure requires specific design features to accommodate the replacement of the feed network and antenna reflector, increasing structural complexity, and the two sets of feed networks and antenna reflectors are also quite heavy.

[0004] 2. The system often uses an antenna + independent terminal configuration, with the two connected by a cable for antenna control. This independent antenna and terminal design results in a heavier and larger overall station, and requires additional cabling during assembly, making the process more complex and time-consuming.

[0005] To simplify antenna usage and improve work efficiency, a portable, motorized satellite communication antenna with dual Ku / Ka band compatibility was designed. The antenna features simple and rapid frequency band switching and an integrated antenna mount and terminal design, thus enhancing work efficiency. Summary of the Invention

[0006] In view of this, the present invention provides a Ku / Ka dual-band motorized portable communication antenna. This antenna allows for frequency band switching via a lever-type frequency band switch, making operation simple and efficient. The panel adopts an interchangeable design and a quick-connect structure, enabling rapid and high-precision assembly. By integrating the transmission mechanism, the size and weight are reduced, thus achieving a compact and integrated design of the stand and terminal. Furthermore, the antenna's appearance design adheres to industrial design principles, ensuring a harmonious and aesthetically pleasing appearance across different structural components, concealing cables, and resulting in an overall aesthetically pleasing design.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A Ku / Ka dual-band shared electric portable communication antenna includes a feed (1), a microwave network (3), an antenna reflector (2), an antenna mount (4), and legs (5); the antenna mount (4) is mounted on the top of the legs (5), the antenna reflector (2) is mounted on the cross-drive mechanism (28) of the antenna mount (4) through the microwave network (3), and the feed (1) is mounted at the center of the antenna reflector (2); characterized in that the antenna mount (4) includes a pitch drive mechanism (15), a polarization drive mechanism (16), and an azimuth drive mechanism (17).

[0009] The top of the support leg (5) is provided with a central disk; the azimuth rotation mechanism includes an azimuth housing, an azimuth motor and an azimuth turntable bearing; the azimuth housing is installed above the central disk, and the two are connected by the azimuth turntable bearing; the rotor of the azimuth turntable bearing is fixedly connected to the central disk, and the stator is fixedly connected to the housing; the azimuth motor is installed inside the azimuth housing, and its output gear passes through the housing and meshes with the external teeth on the rotor of the azimuth turntable bearing.

[0010] The pitch transmission mechanism (15) includes a joint module motor and a pitch housing; the top of the azimuth housing has two parallel support arms; the pitch housing is installed between the two support arms and connected to the bearings of the two support arms; the joint module motor is installed in the pitch housing, and its rotor is fixedly connected to the support arms; the output shaft axis of the joint module motor coincides with the rotation axis of the pitch housing.

[0011] The polarization drive mechanism (16), duplexer (10), and polarization surface rotation mechanism (9) are installed in the pitch box. The duplexer (10) is connected to the microwave network (3), and the polarization drive mechanism drives the polarization surface rotation mechanism (9) to perform polarization adjustment.

[0012] Furthermore, the antenna reflector (2) has a segmented structure, which includes a central panel (11) and multiple segmented panels (12); the central panel (11) is circular and the segmented panels are fan-shaped; the central panel (11) has a slot surface, and each segmented panel (12) is installed on the corresponding slot surface, and adjacent segmented panels (12) are connected by a latch (14).

[0013] The slot surface is provided with an upper pressure plate, a wave spring, and a lower pressure plate; the lower pressure plate is fixed to the slot surface to form a socket structure; the upper pressure plate is located in the socket structure, and the wave spring is located between the upper pressure plate and the lower pressure plate; the inner end of the split panel is inserted between the upper pressure plate and the slot surface.

[0014] Furthermore, the feed source is fixed to the center of the antenna reflector by a thread, and its phase center coincides with the phase center of the antenna reflector.

[0015] Furthermore, the microwave network is fixed to the antenna reflector surface and is internally connected to the feed source.

[0016] Furthermore, the support leg structure includes a central disc and three support rods, which are hinged to the central disc at corresponding positions and have an angle adjustment function; the support rods have a telescopic function, realizing continuous length adjustment within a certain range; the central disc has a central connecting hole, which is used to fix the antenna mount by positioning with a stop and fastening with screws.

[0017] The beneficial effects of the above-mentioned technical solution adopted by the present invention are as follows:

[0018] 1. The antenna of this invention adopts an integrated Ku / Ka design for the feed, microwave network and antenna reflector. The frequency band can be switched by a lever-type frequency band switching switch, which is simple and efficient to operate and improves the efficiency of use.

[0019] 2. The panels adopt an interchangeable design and a quick-connect structure design, which enables rapid and high-precision assembly of the panels and improves the assembly speed;

[0020] 3. By integrating the transmission mechanism into a single design, the size and weight are reduced. This allows for a smaller weight and volume while maintaining the integrated design of the frame and terminal. During assembly, there is no need to connect the terminal and antenna with additional cables, simplifying the workflow and reducing the overall size and weight of the station.

[0021] 4. The antenna's appearance design incorporates industrial design principles, ensuring that different structural elements are coordinated and aesthetically pleasing, concealing cables, and resulting in an overall attractive design. Attached Figure Description

[0022] Figure 1 : Front view of the overall structure of an embodiment of the present invention;

[0023] Figure 2 : An exploded view of the overall structure of an embodiment of the present invention;

[0024] Figure 3 : Feed source structure diagram in an embodiment of the present invention;

[0025] Figure 4 : Microwave network structure diagram in the embodiment of the present invention;

[0026] Figure 5 : Antenna reflector structure diagram in an embodiment of the present invention;

[0027] Figure 6 : A structural diagram of the antenna reflector plate in an embodiment of the present invention;

[0028] Figure 7 : Antenna mount structure diagram in an embodiment of the present invention;

[0029] Figure 8 : A diagram of the support leg structure according to an embodiment of the present invention;

[0030] Explanation of reference numerals in the attached diagram: 1. Feed source; 2. Antenna reflector; 3. Microwave network; 4. Antenna mount; 5. Ku / Ka dual-band shared feed source; 6. Flower-shaped nut; 7. Frequency band switching device; 8. Polarization surface rotation mechanism; 9. Duplexer; 10. Center panel; 11. Split panel; 12. Pressure plate; 13. Lock; 14. Pitch transmission mechanism; 15. Polarization transmission mechanism; 16. Azimuth transmission mechanism; 17. Terminal module; 18. Battery; 19. Center plate; 20. Support rod; 21. Upper pressure plate; 22. Wave spring; 23. Lower pressure plate; 24. Support arm; 25. Pitch housing; 26. Azimuth housing; 27. Detailed Implementation

[0031] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0032] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described 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.

[0033] A Ku / Ka dual-band shared motorized portable communication antenna includes a feed, a microwave network, an antenna reflector, an antenna mount, and legs. During signal reception, the antenna reflector focuses and reflects the microwave signal back to the feed, which then transmits the signal along a waveguide to the microwave network for frequency band and polarization processing, transmitting signals of different frequency bands to their respective LNAs. The signal transmission process is the reverse of the reception process. The feed is threaded to the center of the antenna reflector, with its phase center coinciding with that of the antenna reflector. The microwave network is fixed to the antenna reflector and internally connected to the feed. The antenna reflector is fixed to the antenna mount via a bracket, and the antenna mount rotates the antenna reflector and feed to adjust the azimuth, elevation, and polarization angles. The antenna mount includes an elevation drive mechanism, an azimuth drive mechanism, and a polarization drive mechanism, all fixed to the mount housing. A terminal module and battery are integrated inside the antenna mount. The legs are located below the antenna mount and support the antenna.

[0034] Furthermore, the feed source adopts a Ku / Ka dual-frequency shared design;

[0035] Furthermore, the microwave network includes a frequency band switching device, a polarization plane rotation mechanism, a duplexer, etc., to realize functions such as frequency band and polarization processing of signals;

[0036] Furthermore, the antenna reflector has a segmented structure, which includes multiple segmented panels and a central reflector; the segmented panels are connected to the central panel by pressure plates, and the segmented panels are fixedly connected to each other by latches.

[0037] Furthermore, the antenna mount includes a pitch transmission mechanism, an azimuth transmission mechanism, and a polarization transmission mechanism, all of which adopt an integrated transmission device. This device is characterized by its small size and light weight. The interior of the antenna mount housing can provide a large space for arranging terminal modules and batteries, realizing an integrated design of the antenna mount and the terminal.

[0038] Furthermore, the support leg structure includes a central disc and three support rods, which are hinged to the central disc at corresponding positions and have an angle adjustment function through a special structural design. The support rods have a telescopic function, enabling continuous adjustment within a length range. The central disc has a central connecting hole, which, through a stop and screw fastening, secures the antenna mount.

[0039] Furthermore, the antenna's appearance design incorporates industrial design principles, ensuring that the appearance of each structure is coordinated and aesthetically pleasing, concealing cables, and resulting in an overall attractive design.

[0040] The following is a more specific example:

[0041] like Figure 1 and Figure 2 The diagram illustrates a Ku / Ka dual-band motorized portable communication antenna, comprising a feed 1, an antenna reflector 2, a microwave network 3, an antenna mount 4, and legs 5. During signal reception, the antenna reflector 2 focuses and reflects the microwave signal back to the feed 1, which then transmits the signal along the waveguide to the microwave network 3 for frequency band and polarization processing, transferring signals of different frequency bands to their respective LNAs. The signal transmission process is the reverse of the reception process. The feed 1 is fixed to the center of the antenna reflector 2 by threads, with its phase center coinciding with the phase center of the antenna reflector. The microwave network 3 is fixed to the antenna reflector 2 and is internally connected to the feed 1. The antenna reflector 2 is fixed to the antenna mount 4 by a bracket. The antenna mount 4 drives the antenna reflector 2 and the feed 1 to rotate, thereby adjusting the azimuth, elevation, and polarization angles. The antenna mount 4 includes an elevation transmission mechanism, an azimuth transmission mechanism, and a polarization transmission mechanism, all of which are fixed to the mount housing. The antenna mount 4 integrates a terminal module and a battery. The support leg 5 is located below the antenna mount and is used to support the antenna.

[0042] like Figure 3 As shown, the feed source includes a Ku / Ka dual-band shared feed source 6 and a flower-shaped nut 7. The Ku / Ka dual-band shared feed source, through special electrical and structural design, enables the reception and transmission of signals in both the Ku and Ka bands. The flower-shaped nut allows the feed source to be quickly and reliably fixed to the antenna reflector surface, facilitating assembly and storage.

[0043] like Figure 4As shown, the microwave network includes a frequency band switching device 8, a polarization surface rotation mechanism 9, a duplexer 10, and connecting waveguides between them. The Ku and Ka bands operate in a time-division multiplexing mode. By rotating the lever of the frequency band switching device 9, the internal port of the feedhorn is switched to either the Ku or Ka band, thus achieving the frequency band switching function. The Ku band operates with linear polarization, and the Ka band operates with circular polarization. Left and right rotation selection is achieved through the duplexer 10. The polarization adjustment function of the Ku band is implemented through the polarization surface rotation mechanism 9. Finally, the Ku and Ka band signals are transmitted to the transceiver.

[0044] like Figure 5 As shown, the antenna reflector includes a central panel 11, segmented panels 12, a pressure plate 13, and a locking buckle 14. Both the central panel and the segmented panels are made of carbon fiber. The segmented panels are connected to the central panel via the pressure plate 13, and the segmented panels are fixedly connected to each other via the locking buckle 14. The central panel, segmented panels, pressure plate, and locking buckle all feature positioning structures to ensure quick and high-precision assembly of the panels. Through specialized design and processes, different panels are interchangeable without the need for panel numbering, improving assembly efficiency. The antenna surface can be divided into four segments, which are neatly shaped after disassembly for easy storage. Figure 6 As shown, the pressure plate 13 consists of an upper pressure plate, a wave spring, and a lower pressure plate. The upper pressure plate is designed with multiple positioning bosses, which are embedded into the corresponding positioning grooves of the lower pressure plate during assembly, with a gap between the positioning bosses and the positioning grooves. Meanwhile, the lower pressure plate is designed with two positioning cylinders for holding the wave spring. The wave spring is sandwiched between the upper and lower pressure plates. When the segmented panel 12 is inserted into the pressure plate 13, the elastic deformation of the wave spring presses the segmented panel 12 tightly against the center panel 11. The positioning bosses and positioning grooves between the upper and lower pressure plates act as guides, preventing lateral movement between the upper and lower pressure plates.

[0045] like Figure 6As shown, the antenna mount includes a pitch transmission mechanism 15, a polarization transmission mechanism 16, an azimuth transmission mechanism 17, a terminal module 18, a battery 19, and a housing. The azimuth, polarization, and pitch transmission mechanisms all employ an integrated transmission device, including a driver, motor, and reducer, resulting in a small size and light weight. The use of an integrated transmission device reduces the size of the transmission mechanism, optimizes the layout, and frees up space to accommodate the terminal module 18 inside the antenna housing, while the battery 19 is installed externally, achieving an integrated design of the antenna mount and terminal. The outer flange of the pitch transmission mechanism 15 is fixed to the pitch housing, and the inner flange is connected to the pitch support arm. The pitch support arm is fixed to the mount's linear body, and the antenna reflector 2 is fixed to the pitch housing. The relative rotation of the inner and outer flanges drives the pitch housing to rotate, thereby adjusting the antenna's pitch angle. The azimuth layout is similar. The inner flange of the azimuth transmission mechanism 17 is fixed to the base of the antenna frame, and the outer flange is fixed to the antenna frame housing. The relative rotation of the inner and outer flanges drives the antenna frame housing to rotate, thereby adjusting the antenna azimuth angle. The polarization transmission mechanism 16 is fixed to the top surface of the elevation housing by a bracket. It drives the polarization surface rotation mechanism 9 to rotate through gear transmission, thereby adjusting the polarization angle. The top of the outrigger is provided with a central disk; the azimuth rotation mechanism includes an azimuth housing, an azimuth motor, and an azimuth turntable bearing; the azimuth housing is installed above the central disk, and the two are connected by the azimuth turntable bearing; the rotor of the azimuth turntable bearing is fixedly connected to the central disk, and the stator is fixedly connected to the housing; the azimuth motor is installed inside the azimuth housing, and its output gear passes through the housing and meshes with the external teeth on the rotor of the azimuth turntable bearing; the pitch transmission mechanism includes a joint module motor and a pitch housing; the top of the azimuth housing has two parallel outriggers; the pitch housing is installed between the two outriggers and connected to the two outrigger bearings; the joint module motor is installed in the pitch housing, and its rotor is fixedly connected to the outriggers, and the output shaft axis of the joint module motor coincides with the rotation axis of the pitch housing;

[0046] like Figure 7 As shown, the antenna mount includes a pitch transmission mechanism 15, a polarization transmission mechanism 16, an azimuth transmission mechanism 17, a terminal module 18, a battery 19, and a housing, among other structural components. The azimuth, polarization, and pitch transmission mechanisms all employ an integrated transmission device, including a driver, motor, and reducer, resulting in a small size and light weight. The terminal module 18 is arranged inside the antenna housing, while the battery 19 is installed externally, achieving an integrated design between the antenna mount and the terminal.

[0047] like Figure 8As shown, the support leg includes a central disc 20 and support rods 21. There are three support rods, evenly distributed along the circumference of the central disc, and hinged to the central disc at corresponding positions. Through an adjustable stepped structure design, the support leg can have three deployment angles, thereby adjusting the support range and height. The support rods are nested in pairs and connected by a thread, allowing for continuous length adjustment within a certain range. The central disc has a central connecting hole, which, through positioning and screw fastening, secures the antenna mount.

[0048] like Figure 1 As shown, the antenna's appearance design follows industrial design principles, with each structure appearing harmonious and aesthetically pleasing, concealing cables, and resulting in an overall attractive design.

Claims

1. A Ku / Ka dual-band shared automatic portable communication antenna, comprising a feed (1), a microwave network (3), an antenna reflector (2), an antenna mount (4), and legs (5); the antenna mount (4) is mounted on top of the legs (5), the antenna reflector (2) is mounted on a cross-drive mechanism of the antenna mount (4) via the microwave network (3), and the feed (1) is mounted at the center of the antenna reflector (2); characterized in that, The antenna mount (4) includes a pitch transmission mechanism (15), a polarization transmission mechanism (16), and an azimuth transmission mechanism; The top of the support leg (5) is provided with a central disk; the azimuth rotation mechanism includes an azimuth housing, an azimuth motor and an azimuth turntable bearing; the azimuth housing is installed above the central disk, and the two are connected by the azimuth turntable bearing; the rotor of the azimuth turntable bearing is fixedly connected to the central disk, and the stator is fixedly connected to the housing; the azimuth motor is installed inside the azimuth housing, and its output gear passes through the housing and meshes with the external teeth on the rotor of the azimuth turntable bearing. The pitch transmission mechanism (15) includes a joint module motor and a pitch housing; the top of the azimuth housing has two parallel support arms; the pitch housing is installed between the two support arms and connected to the bearings of the two support arms; the joint module motor is installed in the pitch housing, and its rotor is fixedly connected to the support arms; the output shaft axis of the joint module motor coincides with the rotation axis of the pitch housing. The polarization drive mechanism (16), duplexer (10), and polarization surface rotation mechanism (9) are installed in the pitch box. The duplexer (10) is connected to the microwave network (3), and the polarization drive mechanism drives the polarization surface rotation mechanism (9) to perform polarization adjustment.

2. The Ku / Ka dual-band shared automatic portable communication antenna according to claim 1, characterized in that, The antenna reflector (2) has a segmented structure, which includes a central panel (11) and multiple segmented panels (12); the central panel (11) is circular and the segmented panels are fan-shaped; the central panel (11) has a slot surface, and each segmented panel (12) is installed on the corresponding slot surface, and adjacent segmented panels (12) are connected by a latch (14). The slot surface is provided with an upper pressure plate, a wave spring, and a lower pressure plate; the lower pressure plate is fixed to the slot surface to form a socket structure; the upper pressure plate is located in the socket structure, and the wave spring is located between the upper pressure plate and the lower pressure plate; the inner end of the split panel is inserted between the upper pressure plate and the slot surface.

3. The Ku / Ka dual-band shared automatic portable communication antenna according to claim 1, characterized in that, The feed source is fixed to the center of the antenna reflector by a thread, and its phase center coincides with the phase center of the antenna reflector.

4. The Ku / Ka dual-band shared automatic portable communication antenna according to claim 1, characterized in that, The microwave network is fixed on the antenna reflector surface and is internally connected to the feed source.

5. The Ku / Ka dual-band shared automatic portable communication antenna according to claim 1, characterized in that, The support leg structure includes a central plate and three support rods. The support rods are hinged to the central plate at corresponding positions and have an angle adjustment function. The support rods have a telescopic function, which enables continuous length adjustment within a certain range. The central plate has a central connecting hole, which is used to fix the antenna mount by positioning with a stop and fastening with screws.

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