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Orthogonal polarization broadband wide-angle scanning phased array antenna

A phased array antenna, wide-angle scanning technology, applied in the direction of antenna, antenna grounding device, antenna grounding switch structure connection, etc., can solve the problem of low scanning performance of phased array antenna scanning blind area, etc. The effect of ensuring antenna gain and reducing absorption

Active Publication Date: 2022-07-12
SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The main purpose of the present invention is to provide an orthogonally polarized wide-bandwidth angular scanning phased array antenna, aiming at solving the technical problems of current phased array antennas with low scanning performance and scanning blind areas

Method used

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  • Orthogonal polarization broadband wide-angle scanning phased array antenna
  • Orthogonal polarization broadband wide-angle scanning phased array antenna
  • Orthogonal polarization broadband wide-angle scanning phased array antenna

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Embodiment Construction

[0039] It should be understood that the specific embodiments described herein are only used to explain the invention, but not to limit the invention.

[0040] The technical solutions in the embodiments of the invention will be clearly and completely described below with reference to the drawings in the embodiments of the invention. Obviously, the described embodiments are only a part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the invention.

[0041] It should be noted that all directional indications (such as up, down, left, right, front, rear...) in the embodiments of the present invention are only used to explain the relative relationship between various components under a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indica...

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Abstract

The invention discloses an orthogonal polarization broadband wide-angle scanning phased-array antenna. The orthogonal polarization broadband wide-angle scanning phased-array antenna comprises a metal floor, a frequency selective absorption surface, a plurality of metal slot radiation sheets, a plurality of coaxial cables and a plurality of resistive surfaces, the first ends of the plurality of metal slot radiation sheets are vertically arranged on the metal floor, and the second ends of the plurality of metal slot radiation sheets are vertical to the frequency selective absorption surface; the plurality of resistive surfaces are respectively arranged at the joints of the metal slot radiation sheets, and the plurality of coaxial cables are respectively arranged in the corresponding metal slot radiation sheets. Aiming at the problems that a broadband orthogonal polarization phased-array antenna is large in wide-angle scanning active standing wave and has a scanning blind area, a frequency selective absorption surface is loaded, and the orthogonal polarization phased-array antenna with 3: 1 broadband coverage and + / -60-degree wide-angle scanning is realized. The technical problems that an existing phased-array antenna is not high in scanning performance and has a scanning blind area are solved.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to an orthogonal polarization wide bandwidth angle scanning phased array antenna. Background technique [0002] Phased array antennas are widely used in radar, electronic countermeasures and communications due to their unique beam steering capabilities. The phased array antenna with wide-angle broadband scanning capability is a key product to ensure the high performance of the related system, and it is also a hot and difficult issue in the field of phased array antennas. [0003] However, the interaction between traditional phased array antenna array elements can change the current amplitude and phase distribution on the elements, resulting in the elements exhibiting different impedance and radiation characteristics than the isolated state, which in turn affects the phased array scanning performance. At the same time, in order to satisfy the large-angle scanning, the traditional p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q25/00H01Q15/00H01Q1/38H01Q1/48H01Q1/50
CPCH01Q25/001H01Q15/0013H01Q1/38H01Q1/50H01Q1/48Y02D30/70
Inventor 孙全国刘颖姚智馨李智赵志强李培龙小专凌劲
Owner SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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