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Multi-beam phased antenna system

A phased antenna, multi-beam technology, applied in antennas, antenna arrays, specific array feeding systems, etc., can solve problems such as difficulty in meeting volume and weight requirements, difficulty in large-scale deployment, and large system volume and weight. , to achieve the effect of reducing system complexity, light weight, and reducing the number of channels

Active Publication Date: 2016-08-24
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology

[0003] At present, phased antenna systems with omnidirectional coverage mostly use omnidirectional antennas to form an array for beamforming, but the gain of omnidirectional antennas is small. Compared with traditional directional antennas, larger antenna array scales and more T / R are required components to achieve, the system complexity is high
This brings problems: on the one hand, the system is large in size and weight, and it is difficult to meet the volume and weight requirements of vehicle-mounted, ship-borne, and air-borne platforms; on the other hand, the cost is high, and it is difficult to meet the needs of large-scale deployment

Method used

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0020] figure 1 It is a principle block diagram of the present invention. A multi-beam phased antenna system, comprising an antenna array 6 composed of M array elements, an M selection N switch selection component 5, N transceiver channels and an N channel baseband processing component 1, and the N transceiver channels are composed of N The channel filter component 4, the N-channel power amplifier / low noise amplifier component 3 and the N-channel frequency conversion component 2 are composed. instance by figure 1 Make connections, where the solid line is the transmission signal, and the dotted line is the control signal.

[0021] figure 1 Among them, the bidirectional ports 1~M of the antenna array are connected with the bidirectional ports 1~M of the M-choose-N switch component, the bidirectional ports M+1~M+N of the M-choose N switch component are connected with...

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Abstract

The invention discloses a multi-beam phased antenna system, and relates to a beam forming system in the field of microwave communication. The multi-beam phased antenna system comprises an antenna array (M array elements), an N-out-of-M switching assembly, an N-channel filter assembly, an N-channel power amplification / low noise amplification assembly, an N-channel frequency conversion assembly and an N-channel baseband processing assembly. In the system, a planar directional antenna is used for forming a round array, beam forming is carried out by combination of antenna selection, and M beams can be generated to achieve horizontal 360-degree coverage. The multi-beam phased antenna system has the advantages of multi-beam omnibearing coverage, small size, light weight and the function of instant spot beam mutual communication, and is applicably used as an antenna system in microwave communication, and the application demand of a vehicle-mounted, ship-bone or lift-off platform can be met.

Description

technical field [0001] The invention relates to a phased antenna system, which can form multiple beams to achieve horizontal 360° omnidirectional coverage, is suitable for use as an antenna system in microwave communication, and can meet the use requirements of vehicle-mounted, ship-borne and lift-off platforms. Background technique [0002] The phased antenna system is an antenna system that realizes beam scanning by changing the phase of the antenna transmitting signal. The phased antenna system consists of three parts: antenna array, feed network and beam control circuit. The antenna array is composed of multiple antenna units. The system realizes beam forming and scanning by controlling the amplitude and phase of each antenna unit signal. [0003] At present, phased antenna systems with omnidirectional coverage mostly use omnidirectional antennas to form an array for beamforming, but the gain of omnidirectional antennas is small. Compared with traditional directional ant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q3/24H01Q21/00H01Q23/00H01Q1/36
CPCH01Q1/36H01Q3/24H01Q3/242H01Q21/00H01Q21/0025H01Q23/00
Inventor 张金波张航焦学强王栋良金焕文姜晓斐李晓晗孟旭东
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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