Ka-waveband dual-circular polarization switchable transceiving antenna

A technology of dual circular polarization, transmitting and receiving antennas, which is applied in the directions of antenna coupling, antenna grounding device, antenna grounding switch structure connection, etc., which can solve the problems of increased mutual coupling effect, array performance impact, and maintenance, etc., to reduce Active standing wave, small gain loss, and increased isolation
CN112332085AActive Publication Date: 2021-02-05重庆两江卫星移动通信有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
重庆两江卫星移动通信有限公司
Publication Date
2021-02-05

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Abstract

The invention discloses a ka-waveband dual-circular polarization switchable transceiving antenna which comprises an antenna radiation patch layer, an antenna feed layer, a TR assembly layer and probes. The antenna radiation patch layer comprises an antenna radiation patch dielectric layer, a slave radiation patch is arranged on the upper surface of the antenna radiation patch dielectric layer, a radiation metal ground layer is arranged on the lower surface of the antenna radiation patch dielectric layer, a main radiation patch is clamped in the middle of the antenna radiation patch dielectriclayer, and a coupling gap is formed in the radiation metal ground layer; the antenna feed layer comprises an antenna feed dielectric layer arranged under the radiation metal ground layer, a feed metalground layer is arranged on the lower surface of the antenna feed dielectric layer, and two T-shaped strip line feed structures are arranged in the antenna feed dielectric layer; the TR assembly layer comprises other radio frequency layers, a switching layer and a bottom microstrip layer. The probes comprise a first probe and a second probe. The phased array multilayer microwave plate dual circularly polarized antenna is formed by arranging the antenna radiation patch layer, the antenna feed layer and the TR assembly layer, and has the characteristics of broadband and wide beam.
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Description

technical field

[0001] The invention relates to the field of ka-band phased array antennas, in particular to a ka-band dual circular polarization switchable transceiver antenna. Background technique

[0002] At present, millimeter-wave active phased array transceiver components are moving toward increasingly miniaturized designs. In order to improve space utilization, radio frequency signals must be transmitted upwards between multi-layer microwave substrates. As the frequency increases, the microwave transmission line and propagation performance will become more and more complex. In the multilayer board, other layers, such as the circuit layer, control layer, etc., are easy to interfere with the feed point structure of the antenna layer, especially the dual The polarization structure doubles the difficulty. At this time, the two polarized feeders must be separated through the transfer layer to reach the chip layer and be connected to it.

[0003] In the theory of array ant...

Claims

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