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5G broadband trap wave circular polarized antenna

A circularly polarized antenna and broadband technology, applied in the field of 5G broadband notch circularly polarized antenna, can solve the problem of low antenna gain and achieve the effect of wide bandwidth, easy processing and simple structure

Active Publication Date: 2018-05-11
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the gain of this antenna is not high

Method used

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  • 5G broadband trap wave circular polarized antenna
  • 5G broadband trap wave circular polarized antenna
  • 5G broadband trap wave circular polarized antenna

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with specific examples.

[0029] Such as Figure 1 to Figure 4 As shown, the 5G broadband notched circularly polarized antenna provided in this embodiment includes a dielectric substrate 1, a metal reflector 2, a radiation patch group, and a coaxial feed structure 6; the metal reflector 2 is located in the dielectric At about a quarter of the center frequency wavelength below the substrate 1, the radiation patch group is composed of 2 n The same rectangular patch with a chamfer of the same band (optimally selects four slices), n is a natural number except zero, and in the present embodiment is the case of enumerating four slices, there are four identical bands with a chamfer The rectangular patches 3a, 3b, 3c, 3d are composed of rectangular patches 3a, 3b, 3c, 3d, wherein two rectangular patches 3c, 3d with a chamfer are distributed on the upper surface of the dielectric substrate 1 in a semicircular ...

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Abstract

The invention discloses a 5G broadband trap wave circular polarized antenna comprising a dielectric substrate, a metal reflecting plate, a metal radiation paster group and a coaxial line feed structure, wherein the metal reflecting plate is positioned below the dielectric substrate, the metal radiation paster group consists 2n same rectangular pasters having chamfered angles, n is a natural numberexcept zero, one half of the rectangular pasters are distributed on an upper surface of the dielectric substrate in a semi-circumference array mode while the other half of the rectangular pasters aredistributed on a lower surface of the dielectric substrate in a semi-circumference array mode, the two half rectangular pasters groups can form full circle distribution, the chamfered angles of all the pasters can be overlapped on a circumference edge, every two neighboring pasters in each half rectangular paster group are connected via a microstrip line, fine gaps and slots are etched in each paster, and the coaxial line feed structure is used for feeding the metal radiation paster group via a metal reflecting plate. The 5G broadband trap wave circular polarized antenna is advantaged by widefrequency bandwidth, simple structure, easy processing operation, low cost and the like.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a 5G broadband notch circularly polarized antenna. Background technique [0002] With the development of wireless communication technology, 5G communication is gradually entering into use. 5G communication has two frequency bands in the low frequency range, namely 3.3GHz-3.6GHz and 4.8GHz-5.0GHz. It is necessary to completely cover the frequency range of these two frequency bands. The communication range requires the antenna to have broadband performance. At the same time, circularly polarized antennas have been widely studied due to their advantages over linearly polarized antennas, such as anti-polarization mismatch and Faraday rotation effect. Therefore, the 5G broadband circularly polarized antenna has become a research topic. [0003] For many broadband circularly polarized antennas, some frequency bands covered by them are unnecessary, so the antenn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/38H01Q19/10
CPCH01Q1/36H01Q1/38H01Q19/10Y02D30/70
Inventor 涂治红饶雪琴
Owner SOUTH CHINA UNIV OF TECH
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