Broadband circular polarization common-aperture communication navigation array antenna

An array antenna and circular polarization technology, which is applied in the field of communication and navigation, can solve the problems of difficult antenna design, complicated program coordination, inter-frequency mutual coupling interference, etc., and achieve broadband impedance matching characteristics, compact structure, and inter-frequency Effect of Mutual Coupling Reduction
CN109638422AActive Publication Date: 2019-04-16CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
Publication Date
2019-04-16

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Abstract

The invention discloses a broadband circular polarization common-aperture communication navigation array antenna, which comprises antenna sub-arrays arranged in a rectangular manner, and each antennasub-array comprises an L-waveband bent cross oscillator antenna unit and four S-waveband circular microstrip patch antenna units; the four S-band circular microstrip patch antenna units are symmetrically arranged at the four opposite angles of the antenna sub-array; the L-waveband bent cross oscillator antenna unit is located at the center of the antenna sub-array. The antenna is compact in structure; the L-waveband bent cross oscillator structure and the S-waveband circular microstrip patch structures are ingeniously integrated together; on the basis that excellent axial ratio performance isguaranteed, high-order mode resonance influence caused by a complex coupling topological structure is restrained, mutual coupling between two different wave band antennas is weakened, and the antennahas the advantages of being wide in frequency band, light in weight, easy to machine and low in cost.
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Description

technical field

[0001] The invention relates to the technical field of communication and navigation, in particular to a broadband circular polarization common-aperture communication and navigation array antenna. Background technique

[0002] The common-aperture low-profile antenna has the characteristics of compact structure, high space utilization, and light weight. It can independently transmit and receive multi-frequency and multi-polarization signals at the same time, and integrate communication and navigation functions in a limited space at the same time, matching the high-performance mobile platform communication system; The circular polarization technology of the antenna has the advantages of anti-multipath interference and anti-rain and fog, and is easy to polarize matching; broadband communication technology can increase the transmission rate, increase the amount of data interaction, and provide flexible degrees of freedom; The guarantee of transmission and wide-are...

Claims

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