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A circularly polarized antenna unit and antenna array

A technology of circularly polarized antennas and antenna units, which is applied in the direction of separately energized antenna arrays, slot antennas, and radiating element structures, can solve problems such as narrow bandwidth, low gain, and low operating frequency, and achieve reduced coupling and widened axis Effect of specific bandwidth and concentration of radiated energy

Active Publication Date: 2022-07-01
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

At present, microwave and millimeter wave passive and active devices using hexagonal cavity structures generally have the problems of low operating frequency, narrow bandwidth, and low gain.

Method used

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  • A circularly polarized antenna unit and antenna array
  • A circularly polarized antenna unit and antenna array
  • A circularly polarized antenna unit and antenna array

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Embodiment Construction

[0035] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the present disclosure will be further described in detail below with reference to the specific embodiments and the accompanying drawings.

[0036] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should have the usual meanings understood by those with ordinary skill in the art to which the present disclosure belongs. "First", "second" and similar words used in the embodiments of the present disclosure do not denote any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or things appearing before the word encompass the elements or things recited after the word and their equivalents, but do not exclude other elements or things. Words like "connected" or "connected" are not ...

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Abstract

The present disclosure provides a circularly polarized antenna unit and an antenna array. The antenna unit includes: a metal ground, and a first dielectric plate, a second dielectric plate, and a third dielectric plate that are sequentially stacked on the metal ground; and a third dielectric plate There are four rectangular radiation patches and several metal pillars, and the several metal pillars are distributed in a field shape to form four rectangular back cavities corresponding to the four rectangular radiation patches; There are four coupling slots in one-to-one correspondence with four rectangular radiation patches; a hexagonal cavity composed of metal columns is also arranged in the second dielectric plate, and four metal matching slots are arranged in the hexagonal cavity. A column; a feeding transverse slit is arranged on the upper surface of the first dielectric plate, and a first SIW feeding structure composed of a metal column is also arranged in the first dielectric plate. The hexagonal cavity structure of the antenna can reduce the volume of microwave and millimeter-wave antennas, increase the working bandwidth, and improve the antenna gain.

Description

technical field [0001] The present disclosure relates to the technical field of millimeter wave antenna design in wireless communication technology, and in particular, to a circularly polarized antenna unit and an antenna array. Background technique [0002] With the rapid development of wireless communication technology, circularly polarized antennas have been paid more and more attention. Compared with linearly polarized antennas, the advantages of circularly polarized antennas are that they can overcome multipath interference and have better polarization efficiency, which can ensure that in complex electromagnetic In addition to target detection and communication in the environment, circularly polarized antennas also have polarization rotation and handed orthogonality. These advantages make circularly polarized antennas shine in wireless communication systems. At present, microwave and millimeter-wave passive and active devices using hexagonal cavity structure generally h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q21/20H01Q13/10
CPCH01Q1/38H01Q21/20H01Q13/10
Inventor 李秀萍朱跃方齐紫航陈淼
Owner BEIJING UNIV OF POSTS & TELECOMM
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