Multi-beam phased array antenna mechanism

A phased array antenna and multi-beam technology, which is applied in diversity/multi-antenna systems, antennas, antenna components, etc., can solve the problems of multi-beam satellite-borne antennas and cannot meet the simultaneous access of multiple users, so as to improve the applicability , avoid the effect that cannot be changed, and improve the processing accuracy

Active Publication Date: 2018-08-10
CHENGDU T-RAY TECH CO LTD
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Problems solved by technology

[0005] This application provides a multi-beam phased array antenna mechanism, which is used to solve the problem that the satellite-borne antenna in the prior art is difficult to achieve more beams under the limitation of low power consumption, so that it cannot meet the simultaneous access technology of multiple users question

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Embodiment 1

[0039] Please refer to figure 1 , Embodiment 1 of the present application provides a multi-beam phased array antenna mechanism, including:

[0040]M baseband digital channels, each of the baseband digital channels is used to output one radio frequency signal, and a total of M channels of the same radio frequency signal are input, wherein each of the radio frequency signals is composed of K sub-signals, and M is greater than or equal to 2 Integer, K is an integer greater than or equal to 2;

[0041] M switch networks 102, including M multi-pass switches, the M multi-pass switches are connected to the M baseband digital channels in one-to-one correspondence, and the multi-pass switches include N paths, at a time node Only one of the N paths is in a connected state, so that an input radio frequency signal is output from this path, and N is an integer greater than or equal to 2; the multi-pass switch can be a multi-pole multi-throw switch, a single-pole single-throw switch , mul...

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Abstract

The invention discloses a multi-beam phased array antenna mechanism. M radio frequency signals including K sub-signals can be input through a digital channel; one of N radio frequency signals is counted up by performing switching input on different time nodes by a switch network, and then different digital phase shifting values can be endowed for each sub-signal through a passive multi-beamformingnetwork, various radio frequency signals finally synthesize new M radio frequency signals through power division, thereby completely activating all units of the whole antenna array to form a high-gain antenna radiation beam. The high-gain beam is synthesized by K sub-signals. Through the scheme disclosed by the invention, the simulated multi-beam phased array design is adopted at the horizontal dimension, the digital multi-beam phased array design is adopted at a vertical dimension, thereby avoiding a way of realizing the multi-beam by adding the digital channel on the horizontal dimension inthe prior art, the power consumption of the whole antenna system can be effectively reduced, and the multi-beam can be realized under low power consumption condition so as to satisfy the access of multi-user.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a multi-beam phased array antenna mechanism. Background technique [0002] At present, with the rise of satellite Internet data service applications, the non-geostationary orbit satellite communication constellation project has made great progress. Conventional communication satellites are located in geosynchronous orbits, with large delays, low data rates, and high investment and application costs. At present, low-orbit small satellites are usually used to meet the needs of satellite Internet systems. [0003] In actual operation, for the application scenario of satellite multi-user coverage, the antenna needs as many beams as possible to meet the simultaneous access requirements of multiple users. Since low-orbit small satellites are limited by the platform, the transmitting power of the antenna on the satellite is the most precious resource. Therefore, the ant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0408H04B7/06H01Q25/00H01Q1/28
CPCH01Q1/288H01Q25/00H04B7/0408H04B7/0617Y02D30/70
Inventor 赵国华陈智慧李灿郭凡玉颜薇郑楷
Owner CHENGDU T-RAY TECH CO LTD
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