Antenna feed switching system and feed switching method thereof
An antenna and feed source technology, applied in the antenna feed system and its feed field, can solve the problems of poor feed positioning accuracy, high feed positioning accuracy, complex structure, etc., to prevent mechanical collision damage and meet loading requirements , the effect of reducing height
Active Publication Date: 2022-03-29
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology
[0005]1. The efficiency of the manual feed-forwarding method is low, and the positioning accuracy of the feed-forwarding is poor;
[0006]2. Rotary feed-forward method has a large shielding area and complex structure, which is not suitable for small and medium-diameter antennas
[0007]3. Straight-line walking feed-forward mode without shaft angle encoder for real-time monitoring of angle status, it is difficult to achieve high feed-forward positioning accuracy, and it is suitable for the overall height of the antenna Occasion required
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[0059] Below, the present invention will be further described in conjunction with the accompanying drawings and specific embodiments.
[0060] In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art Generally speaking, other drawings can also be obtained based on these drawings on the premise of not paying creative work.
[0061] An antenna feed exchange system, this embodiment includes a lifting mechanism, a translation mechanism, a feed source support mechanism, a slideway pair, a dual-line polarized feed source for a dual-line polarized feed source, and a dual-line polarized feed source for a dual-circular polarized feed source. Circular polarization feed and other parts. The top of the liftin...
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The invention discloses an antenna feed switching system and a feed switching method thereof, and belongs to the technical field of antennas. The device comprises a lifting mechanism, a translation feed switching mechanism, a feed source supporting mechanism and the like, vertical movement of multiple groups of feed sources of an antenna is realized based on lead screw pair transmission of the lifting mechanism, and horizontal adjustment of the multiple groups of feed sources of the antenna is realized based on lead screw pair transmission of the translation feed switching mechanism. Through meshing transmission of a gear pair of the feed source supporting mechanism, polarization rotation movement of the needed feed source around the axis of the feed source is achieved, and the feed switching and focus fixing requirements of multiple groups of feed sources of the antenna are met. When the needed antenna feed source moves in place, judgment is made for mechanical movement through a high-precision angle sensor and a micro-motion limit switch. The invention is not only suitable for full-automatic, high-precision and multi-frequency-band shared medium and large reflector antennas, but also has the advantages of multi-degree-of-freedom adjustment, high precision, full automation, stability, reliability, high realizability and the like.
Description
technical field [0001] The invention relates to the technical field of antennas, in particular to an antenna feed-forward system and a feed-forward method thereof. Background technique [0002] With the rapid development of global aerospace measurement and control technology, measurement and control ground station antennas are developing in the direction of multi-band and high precision. In order to meet the requirements of transmitting and receiving satellite signals in multiple frequency bands of the antenna system, reflector antennas usually use multiple sets of feed sources to achieve frequency band switching. [0003] At present, most antenna feed source switching methods mainly include manual feed switching, rotating feed switching, and linear walking feeding switching. Manual feed-changing is often used in occasions where replacement frequency is not high and positioning accuracy is low; rotating feed-changing is used in large-scale radio telescope systems, and the g...
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IPC IPC(8): H01Q1/50H01Q1/10H01Q1/12H01Q1/32H01Q3/08H01Q15/14H01Q15/24H01Q19/10
CPCH01Q1/50H01Q1/32H01Q15/14H01Q19/10H01Q15/24H01Q3/08H01Q1/12H01Q1/10
Inventor 刘健泉李增科周书中苏晓莉王小强蒋立坤武织才石伟朝张子乾贾海斌王奥雨梁晓强胡静王胜林王辰磊娄国幸
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP