A satellite antenna with multi-band receiving capability
By designing a satellite antenna with multi-band reception capabilities, using mechanisms such as bevel gears to achieve outward expansion and angle adjustment, and improving reception quality through a cleaning mechanism, the problem of the existing array antenna's inability to accurately receive beam directions has been solved, achieving a wider angle and higher quality network services.
Patent Information
- Application Number
- CN202411195262.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2044-08-29
AI Technical Summary
Existing array antennas cannot accurately receive beam directions, especially in urban environments, which will be difficult to better cover specific areas, affecting the quality of network services.
A satellite antenna with multi-band receiving capabilities is designed. The outward expansion of the satellite antenna body is realized through the cooperation of bevel gears, connecting bevel teeth, vortex teeth and connecting slides, and through the concave seat, two-way screw, thread The cooperation of the block and the rotating rod realizes the angle adjustment, and at the same time, the cleaning work is carried out through the cooperation of the fixed rod, piston assembly, arc tube and jet pipe.
By expanding the mobile position to improve the ultra-wide angle, better beam reception is achieved, and the ability to cover specific areas is greatly enhanced, which is conducive to providing higher quality network services.
Smart Images

Figure CN118825599B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of satellite antennas, and in particular to a satellite antenna with multi-band receiving capability. Background Art
[0002] Satellite communication is a communication method that uses artificial satellites as relay stations to achieve communication between different places on the ground, in the air or at sea. Its development history can be traced back to the early 1960s. With the continuous advancement of technology, satellite communication has been widely used and has become an indispensable part of modern communications. Satellite communication has a wide range of applications and can provide telephone, Internet, radio and television services to a large number of users. In a two-way satellite communication system, the downlink and uplink operate in different frequency bands, usually centered around 20GHz and 30GHz. As a key component of satellite communication, the study of multi-band satellite communication antennas is an important research field.
[0003] At present, common fixed beam high-gain antennas include: array antennas, transmission array antennas, reflection array antennas, etc. Array antennas are composed of multiple antenna elements, each of which can independently receive the phase of its signal. By adjusting these phases, the direction of the beam can be changed without moving the antenna, which enables the satellite to quickly direct the signal to different users or areas;
[0004] Existing array antennas cannot be expanded and can only receive beams within a specified range. Once interference occurs, the direction of the beam cannot be accurately received. Due to signal interference, specific areas cannot be better covered, especially in urban environments, which is not conducive to providing higher quality network services. Summary of the invention
[0005] The purpose of the present invention is to solve the problem in the prior art that the direction of the beam cannot be accurately received, and to propose a satellite antenna with multi-band receiving capability.
[0006] In order to achieve the above object, the present invention adopts the following technical solutions:
[0007] A satellite antenna with multi-band receiving capability comprises a supporting base and a satellite antenna body mounted on the top of the supporting base, and further comprises: a rotating mechanism fixed to the bottom of the supporting base for adjusting the angle of the supporting base; an extending mechanism arranged inside the supporting base for expanding the satellite antenna body outward; an angle adjusting mechanism arranged on the top of the extending mechanism for changing the angle while the satellite antenna body is expanding outward; and a cleaning mechanism arranged on one side of the supporting base for performing cleaning operations while the satellite antenna body is expanding outward.
[0008] Preferably, the cleaning mechanism is arranged on one side of the supporting base and can perform cleaning operations when the satellite antenna body is extended outward.
[0009] The expansion mechanism includes a bevel gear that rotates inside a support base through a bearing. The inside of the support base is rotatably connected to a connecting bevel gear through a driving unit. The connecting bevel gear is meshed with the bottom of the bevel gear. The top of the connecting bevel gear is fixedly connected to a scroll tooth. The surface of the scroll tooth is meshed and connected to a connecting slide. The top of the connecting slide is fixedly connected to the satellite antenna body through a hinge seat.
[0010] Preferably, the angle adjustment mechanism includes a concave seat fixed on the top of the connecting skateboard, the interior of the concave seat is rotatably connected to a bidirectional screw rod through a bearing, the surface of the bidirectional screw rod is threadedly connected to a threaded block, the top of the threaded block is rotatably connected to a rotating rod through a rotating shaft, and the end of the rotating rod is rotated to the bottom of the satellite antenna body through the rotating shaft.
[0011] Preferably, both ends of the bidirectional screw rod respectively pass through the concave seat and extend to be fixedly connected with a toothed disc, the surface of the toothed disc is meshingly connected with a rack, the rack is fixed to the side wall of the support base, and the connecting slide slides on the surface of the rack.
[0012] Preferably, the cleaning mechanism includes a fixed rod fixed to the side wall of the support base, one end of the fixed rod is fixedly connected to a piston assembly, the end of the piston assembly is connected to an arc tube through a hose, the fixed arc tube is fixed to the side wall of the satellite antenna body, and the surface of the arc tube is connected to a plurality of jet pipes.
[0013] Preferably, the piston assembly comprises a piston cylinder fixed to the end of a fixed rod, the interior of the piston cylinder is slidably connected with a piston rod, and the end of the piston rod is fixed on a connecting slide plate.
[0014] Preferably, a return spring is fixedly connected to the interior of the piston cylinder, and the end of the return spring is fitted to the end of the piston rod.
[0015] Preferably, a guide groove is provided inside the concave seat, a sliding block is slidably connected inside the guide groove, and the sliding block is fixed at the bottom of the threaded block.
[0016] Preferably, the rotating mechanism includes a connecting bracket fixed to the bottom of the supporting base, the end of the connecting bracket is rotatably connected to the supporting frame via a rotating shaft, the interior of the supporting frame is rotatably connected to the connecting bracket via a driving unit, and the bottom of the supporting frame is rotatably connected to the connecting base via a driving unit.
[0017] Compared with the prior art, the present invention provides a satellite antenna with multi-band receiving capability, which has the following beneficial effects:
[0018] 1. The satellite antenna with multi-band receiving capability can expand multiple satellite antenna bodies outward through the cooperation between conical gears, connecting bevel gears, vortex gear teeth and connecting slides. Through this arrangement, the ultra-wide angle is improved by expanding the mobile position, avoiding the reception of only beams within a specified range, thereby being able to better cover specific areas and facilitating the provision of higher quality network services.
[0019] 2. The satellite antenna with multi-band receiving capability can change the angle of the satellite antenna body through the cooperation between the concave seat, the bidirectional screw, the threaded block and the rotating rod. By setting it in this way, the satellite antenna body is formed into a convex setting. Under the convex setting, the beam can be better received within a certain range, further improving the operability of the satellite antenna.
[0020] 3. The satellite antenna with multi-band receiving capability can be cleaned synchronously when the satellite antenna body is extended outward through the coordination among the fixing rod, the piston assembly, the arc tube and the jet tube. This arrangement can clean the dust attached to the surface of the satellite antenna body, prevent the dust from adhering for a long time and affecting the received beam signal value, and further improve the service life of the satellite antenna.
[0021] The parts not involved in the device are the same as the existing technology or can be implemented by the existing technology. The present invention realizes the improvement of ultra-wide angle by expanding the mobile position, and at the same time, the satellite antenna body can be formed into a convex setting. Under the convex setting, the beam can be better received within a certain range, so that a specific area can be better covered, which is conducive to providing higher quality network services. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 A schematic diagram of the structure of a satellite antenna with multi-band receiving capability proposed by the present invention;
[0023] Figure 2 A schematic diagram of the cross-section structure of a satellite antenna with multi-band receiving capability proposed by the present invention;
[0024] Figure 3 A schematic diagram of the expansion mechanism structure of a satellite antenna with multi-band receiving capability proposed by the present invention;
[0025] Figure 4 A schematic diagram of the structure of an angle adjustment mechanism of a satellite antenna with multi-band receiving capability proposed by the present invention;
[0026] Figure 5 A schematic structural diagram of a cleaning mechanism of a satellite antenna with multi-band receiving capability proposed by the present invention;
[0027] Figure 6 This is a front structural schematic diagram of a satellite antenna with multi-band receiving capability proposed by the present invention;
[0028] Figure 7 A satellite antenna with multi-band receiving capability proposed by the present invention Figure 6 The enlarged structural diagram at A in the middle;
[0029] Figure 8 The present invention is a schematic diagram of a top view of the structure of a satellite antenna with multi-band receiving capability.
[0030] In the figure: 1. Support base; 2. Satellite antenna body; 3. Rotating mechanism; 31. Connecting bracket; 32. Support frame; 33. Connecting base; 4. Expansion mechanism; 41. Conical gear; 42. Connecting bevel gear; 43. Vortex gear; 44. Connecting slide plate; 5. Angle adjustment mechanism; 51. Concave seat; 52. Bidirectional screw rod; 53. Threaded block; 54. Rotating rod; 55. Toothed disc; 56. Rack; 57. Guide groove; 58. Sliding block; 6. Cleaning mechanism; 61. Fixed rod; 62. Piston assembly; 621. Piston cylinder; 622. Piston rod; 623. Return spring; 63. Arc tube; 64. Jet tube. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0032] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0033] In one embodiment, referring to Figure 1-Figure 8 A satellite antenna with multi-band receiving capability includes a supporting base 1, and a satellite antenna body 2 installed on the top of the supporting base 1, and also includes: a rotating mechanism 3 fixed to the bottom of the supporting base 1, for adjusting the angle of the supporting base 1; an expansion mechanism 4, arranged inside the supporting base 1, for expanding the satellite antenna body 2 outward; an angle adjustment mechanism 5, arranged on the top of the expansion mechanism 4, for changing the angle while the satellite antenna body 2 expands outward.
[0034] By adopting such a scheme, the satellite antenna body 2 is set on the supporting base 1, and then the bottom of the supporting base 1 is supported and connected by the rotating mechanism 3, and the rotating mechanism 3 is installed on the equipment for electrical connection and use, the supporting base 1 and the satellite antenna body 2 are connected by the expansion mechanism 4, and then the expansion mechanism 4 and the satellite antenna body 2 are connected by the angle adjustment mechanism 5, and cooperate with the hinge seat so that the bottom of the satellite antenna body 2 can be formed into a triangular shape, thereby ensuring the stability of the satellite antenna body 2, and finally, by the setting of the cleaning mechanism 6, when the expansion mechanism 4 expands outward, it can synchronously drive the cleaning mechanism 6 to work, thereby cleaning the dust on the surface of the satellite antenna body 2 to prevent the dust adhering to the satellite antenna body 2 from affecting the beam reception quality.
[0035] In one embodiment, referring to Figure 2 and Figure 3 A satellite antenna with multi-band receiving capability comprises a support base 1, and a satellite antenna body 2 mounted on the top of the support base 1, and further comprises: a rotating mechanism 3 fixed at the bottom of the support base 1 for adjusting the angle of the support base 1; an expansion mechanism 4 arranged inside the support base 1 for expanding the satellite antenna body 2 outward; an angle adjustment mechanism 5 arranged at the top of the expansion mechanism 4 for changing the angle while the satellite antenna body 2 is expanding outward; a cleaning mechanism 6 arranged at one side of the support base 1 for performing a cleaning operation when the satellite antenna body 2 is expanding outward, the expansion mechanism 4 comprises a bevel gear 41 rotating inside the support base 1 through a bearing, the inside of the support base 1 is connected to a connecting bevel gear 42 through a driving part, the connecting bevel gear 42 is meshed with the bottom of the bevel gear 41, the top of the connecting bevel gear 42 is fixedly connected to a vortex tooth 43, the surface of the vortex tooth 43 is meshed with a connecting slide 44, and the top of the connecting slide 44 is fixedly connected to the satellite antenna body 2 through a hinge seat.
[0036] By adopting such a scheme, the satellite antenna body 2 can be expanded outward by driving the expansion mechanism 4. The overall area can be increased by expanding the satellite antenna body 2 outward, thereby increasing the ultra-wide-angle range. In the ultra-wide-angle range, the range of beam reception can be increased, and further, specific areas can be better covered, which is conducive to providing higher quality network services.
[0037] During specific operation, the connecting bevel teeth 42 are first rotated through the driving part. Since the connecting bevel teeth 42 are engaged with the bottom of the bevel gear 41, the bevel gear 41 can be driven to rotate synchronously. When the bevel gear 41 rotates, the vortex teeth 43 above are driven to rotate synchronously. The connecting slide plate 44 engaged on the surface can be displaced by the rotation of the vortex teeth 43. Since the connecting slide plate 44 is fixed under the satellite antenna body 2, the satellite antenna body 2 can be driven to expand in all directions synchronously, so as to improve the ultra-wide-angle range. In the ultra-wide-angle range, the range of beam reception can be improved, and further, specific areas can be better covered, which is conducive to providing higher quality network services.
[0038] In one embodiment, reference Figure 4 and Figure 7 A satellite antenna with multi-band receiving capability comprises a support base 1, and a satellite antenna body 2 mounted on the top of the support base 1, and further comprises: a rotating mechanism 3 fixed at the bottom of the support base 1 for adjusting the angle of the support base 1; an expansion mechanism 4 arranged inside the support base 1 for expanding the satellite antenna body 2 outward; an angle adjustment mechanism 5 arranged at the top of the expansion mechanism 4 for changing the angle while the satellite antenna body 2 is expanding outward; a cleaning mechanism 6 arranged at one side of the support base 1 for performing a cleaning operation while the satellite antenna body 2 is expanding outward, the angle adjustment mechanism 5 comprising a concave seat 51 fixed at the top of a connecting slide plate 44, the concave seat 52 being arranged at the top of the connecting slide plate 44, and the concave seat 51 being arranged at the top of the connecting slide plate 44. The interior of the seat 51 is rotatably connected with a bidirectional screw rod 52 through a bearing, and the surface of the bidirectional screw rod 52 is threadedly connected with a threaded block 53. The top of the threaded block 53 is rotatably connected with a rotating rod 54 through a rotating shaft. The end of the rotating rod 54 is rotated at the bottom of the satellite antenna body 2 through the rotating shaft. The two ends of the bidirectional screw rod 52 respectively penetrate the concave seat 51 and extend to be fixedly connected with a gear plate 55. The surface of the gear plate 55 is meshedly connected with a rack 56. The rack 56 is fixed to the side wall of the support base 1. The connecting slide plate 44 slides on the surface of the rack 56. A guide groove 57 is opened inside the concave seat 51. The inside of the guide groove 57 is slidably connected with a sliding block 58, and the sliding block 58 is fixed to the bottom of the threaded block 53.
[0039] By adopting such a scheme, under the setting of the angle adjustment mechanism 5, the satellite antenna body 2 can be individually changed in a small range of angle, so as to form a convex setting for the angle of the satellite antenna body 2. Under the convex setting, the antenna aperture efficiency of receiving low-frequency bands can be improved within a certain range.
[0040] During specific operation, the threaded block 53 on the surface of the bidirectional screw rod 52 can be displaced by rotating the bidirectional screw rod 52 inside the concave seat 51, and the angle of the rotating rod 54 can be changed by the displacement of the threaded block 53. Since the rotating rod 54 is connected to the bottom of the satellite antenna body 2 through the rotating shaft, it can lift up one side of the satellite antenna body 2, thereby setting the satellite antenna body 2 to a convex surface. Under the convex surface setting, the efficiency of receiving the low-frequency band antenna aperture can be improved within a certain range. The rack 56 is fixed to the side wall of the support base 1, and the concave seat 51 is fixed on the connecting slide 44, so that the connecting slide When the plate 44 is displaced, the concave seat 51 is simultaneously driven to displace. Since the rack 56 is fixed to the side wall of the supporting base 1, it will not move. Since the surface of the rack 56 engages with the toothed disc 55, and since the toothed disc 55 is fixed to the end of the bidirectional screw rod 52, the toothed disc 55 is driven to roll on the rack 56 when the concave seat 51 is displaced, so that the bidirectional screw rod 52 can be rotationally driven. With the opening of the guide groove 57, the sliding block 58 can be guided. Since the sliding block 58 is fixed to the end of the threaded block 53, it can play a guiding and limiting role on the bottom of the threaded block 53, thereby preventing the threaded block 53 from rotating when displaced.
[0041] In one embodiment, reference Figure 1 and Figure 5 A satellite antenna with multi-band receiving capability comprises a support base 1, and a satellite antenna body 2 mounted on the top of the support base 1, and further comprises: a rotating mechanism 3 fixed to the bottom of the support base 1 for adjusting the angle of the support base 1; an expansion mechanism 4 arranged inside the support base 1 for expanding the satellite antenna body 2 outward; an angle adjustment mechanism 5 arranged on the top of the expansion mechanism 4 for changing the angle while the satellite antenna body 2 is expanding outward; a cleaning mechanism 6 arranged on one side of the support base 1 for performing a cleaning operation when the satellite antenna body 2 is expanding outward, the cleaning mechanism 6 comprising a fixing rod 61 fixed to the side wall of the support base 1, the fixing rod 6 1 is fixedly connected to one end of a piston assembly 62, and the end of the piston assembly 62 is connected to an arc tube 63 through a hose. The arc tube 63 is fixed to the side wall of the satellite antenna body 2, and a plurality of jet tubes 64 are connected to the surface of the arc tube 63. The piston assembly 62 includes a piston cylinder 621 fixed to the end of a fixed rod 61, and a piston rod 622 is slidably connected to the inside of the piston cylinder 621. The end of the piston rod 622 is fixed to the connecting slide plate 44, and a return spring 623 is fixedly connected to the inside of the piston cylinder 621. The end of the return spring 623 is attached to the end of the piston rod 622. The cleaning mechanism 6 is arranged on one side of the supporting base 1, and can perform cleaning operations when the satellite antenna body 2 is extended outward.
[0042] By adopting such a scheme, under the setting of the cleaning mechanism 6, when the satellite antenna body 2 expands outward, the gas inside the cleaning mechanism 6 can be squeezed and sprayed out synchronously, so that the dust on the surface of the satellite antenna body 2 can be blown clean, preventing the dust from adhering to the surface of the satellite antenna body 2 for a long time, and avoiding the signal value of the receiving beam of the satellite antenna body 2 being affected by excessive dust accumulation.
[0043] During specific operation, it is first fixed to the side wall of the support base 1 through the fixing rod 61, and then the piston cylinder 621 is fixed to the end of the fixing rod 61, and then the end of the piston rod 622 inside the piston cylinder 621 is connected to the top of the connecting slide 44, so that when the connecting slide 44 expands outward, the piston rod 622 can be moved synchronously. Through the movement of the piston rod 622, the gas inside the piston cylinder 621 can be squeezed out, and then transported to the inside of the arc tube 63 through a pipeline, and then the gas is evenly distributed and sprayed out through the jet pipe 64. Since the jet pipe 64 is located above the satellite antenna body 2, the dust on the satellite antenna body 2 can be directly cleaned.
[0044] In one embodiment, referring to Figure 6 A satellite antenna with multi-band receiving capability includes a support base 1, and a satellite antenna body 2 installed on the top of the support base 1, and also includes: a rotating mechanism 3, fixed at the bottom of the support base 1, for adjusting the angle of the support base 1; an expansion mechanism 4, arranged inside the support base 1, for expanding the satellite antenna body 2 outward; an angle adjustment mechanism 5, arranged on the top of the expansion mechanism 4, and changing the angle while the satellite antenna body 2 expands outward; a cleaning mechanism 6, arranged on one side of the support base 1, and performing a cleaning operation when the satellite antenna body 2 expands outward, the rotating mechanism 3 includes a connecting bracket 31 fixed at the bottom of the support base 1, the end of the connecting bracket 31 is rotatably connected to a supporting frame 32 through a rotating shaft, the interior of the supporting frame 32 is rotatably connected to the connecting bracket 31 through a driving unit, and the bottom of the supporting frame 32 is rotatably connected to a connecting base 33 through a driving unit.
[0045] With such a scheme, the connecting bracket 31 is connected to the bottom of the support frame 32, and then connected through a driving part. When the driving part rotates, the elevation angle of the connecting bracket 31 can be changed to receive the elevation angle of the satellite antenna body 2, so as to better receive the direction of the beam. When the driving part at the bottom of the support frame 32 is rotated, since the connecting base 33 is fixed at a specified position by bolts, the connecting base 33 will not change. Therefore, when the angle of the support frame 32 changes, the use angle of the satellite antenna body 2 can be greatly improved under multi-angle rotation.
[0046] To supplement, the above-mentioned driving parts are all driven by servo motors.
[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A satellite antenna with multi-band receiving capability, comprising a support base (1), and a satellite antenna body (2) mounted on the top of the support base (1), characterized in that: Also includes: A rotating mechanism (3) is fixed to the bottom of the supporting base (1) and is used to adjust the angle of the supporting base (1); An expansion mechanism (4) is arranged inside the supporting base (1) and is used to expand the satellite antenna body (2) outwards; An angle adjustment mechanism (5) is arranged on the top of the expansion mechanism (4) and changes the angle simultaneously when the satellite antenna body (2) expands outwards; The expansion mechanism (4) comprises a bevel gear (41) which rotates inside the support base (1) via a bearing, the support base (1) is rotatably connected to a connecting bevel gear (42) inside via a driving unit, the connecting bevel gear (42) is meshed with the bottom of the bevel gear (41), the top of the connecting bevel gear (42) is fixedly connected to a vortex gear (43), the surface of the vortex gear (43) is meshedly connected to a connecting slide plate (44), and the top of the connecting slide plate (44) is fixedly connected to the satellite antenna body (2) via a hinge seat; The rotating mechanism (3) comprises a connecting bracket (31) fixed to the bottom of the supporting base (1); the end of the connecting bracket (31) is rotatably connected to a supporting bracket (32) via a rotating shaft; the interior of the supporting bracket (32) is rotatably connected to the connecting bracket (31) via a driving unit; and the bottom of the supporting bracket (32) is rotatably connected to the connecting base (33) via the driving unit; It also includes: a cleaning mechanism (6) arranged on one side of the supporting base (1) and capable of cleaning operations when the satellite antenna body (2) is extended outward; The cleaning mechanism (6) comprises a fixed rod (61) fixed to the side wall of the support base (1), one end of the fixed rod (61) is fixedly connected to a piston assembly (62), the end of the piston assembly (62) is connected to an arc tube (63) via a hose, the fixed arc tube (63) is fixed to the side wall of the satellite antenna body (2), and the surface of the arc tube (63) is connected to a plurality of jet tubes (64); The piston assembly (62) comprises a piston cylinder (621) fixed to the end of a fixed rod (61), the interior of the piston cylinder (621) is slidably connected to a piston rod (622), and the end of the piston rod (622) is fixed to a connecting slide plate (44).
2. A satellite antenna with multi-band receiving capability according to claim 1, characterized in that: The angle adjustment mechanism (5) comprises a concave seat (51) fixed to the top of the connecting slide plate (44); a bidirectional screw rod (52) is rotatably connected to the inside of the concave seat (51) via a bearing; a threaded block (53) is threadedly connected to the surface of the bidirectional screw rod (52); the top of the threaded block (53) is rotatably connected to a rotating rod (54) via a rotating shaft; and the end of the rotating rod (54) is rotatably connected to the bottom of the satellite antenna body (2) via a rotating shaft.
3. A satellite antenna with multi-band receiving capability according to claim 2, characterized in that: Both ends of the bidirectional screw rod (52) respectively penetrate the concave seat (51) and extend to be fixedly connected with a toothed disc (55); the surface of the toothed disc (55) is meshingly connected with a rack (56); the rack (56) is fixed to the side wall of the support base (1); and the connecting slide plate (44) slides on the surface of the rack (56).
4. The satellite antenna with multi-band receiving capability according to claim 1, characterized in that: A return spring (623) is fixedly connected to the interior of the piston cylinder (621), and an end of the return spring (623) is fitted onto an end of the piston rod (622).
5. A satellite antenna with multi-band receiving capability according to claim 2, characterized in that: A guide groove (57) is provided inside the concave seat (51), and a sliding block (58) is slidably connected inside the guide groove (57), and the sliding block (58) is fixed at the bottom of the threaded block (53).
Citation Information
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