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Broadband high-gain circularly polarized antenna

A circularly polarized antenna and high-gain technology, applied in the field of broadband high-gain circularly polarized antennas, can solve the problems of large size and narrow antenna bandwidth, and achieve the effects of low cost, increased gain, and widened impedance bandwidth

Active Publication Date: 2015-12-16
GUILIN UNIV OF ELECTRONIC TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the existing antenna has problems such as narrow bandwidth and large size, and provides a wide-band high-gain circularly polarized antenna

Method used

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  • Broadband high-gain circularly polarized antenna

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Embodiment Construction

[0026] The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment, present embodiment is carried out under the premise of technical solution of the invention, has provided detailed embodiment and specific operation process, but protection scope of the present invention is not limited to the following the embodiment.

[0027] Broadband high-gain circularly polarized antennas, such as Figure 1-3 As shown, the antenna body is included, and the antenna body is mainly composed of a first dielectric substrate 1 , a second dielectric substrate 5 and a metal reflector 7 . The first dielectric substrate 1, the second dielectric substrate 5, and the metal reflector 7 are parallel to each other and stacked with gaps from top to bottom, that is, the first dielectric substrate 1 is placed in parallel directly above the second dielectric substrate 5, and the second dielectric substrate 5 There is a certain gap between the first diel...

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Abstract

The invention discloses a broadband high-gain circularly polarized antenna, which comprises a first dielectric substrate, a second dielectric substrate and a metal reflector plate, wherein the first dielectric substrate, the second dielectric substrate and the metal reflector plate are parallel to one other and are sequentially superposed at intervals from top to bottom; a metal ground plate coats the upper surface of the second dielectric substrate; an S-shaped coupling gap is formed in the metal ground plate; a strip-shaped microstrip feeder coats the lower surface of the second dielectric substrate; the extension direction of the microstrip feeder is vertical to that of the S-shaped coupling gap; the center region of the S-shaped coupling gap is projected into the microstrip feeder; and a metal radiation patch coats the lower surface, namely one surface toward the second dielectric substrate, of the first dielectric substrate. The broadband high-gain circularly polarized antenna has the characteristics of being small in size, low in construction cost, simple in structure and easy to be integrated with other equipment when broadband high-gain circular polarization of the antenna is achieved.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a broadband high-gain circularly polarized antenna. Background technique [0002] With the development of wireless communication technology, especially the development of broadband wireless communication technology and satellite communication technology, the application of broadband high-gain circularly polarized antenna is very important. The circularly polarized antenna has a strong anti-interference ability and can receive radio waves of various linear polarization and elliptical polarization. Installing a circularly polarized antenna on an aircraft with an uncertain space position can not only reduce signal loss, but also eliminate the distortion caused by the Faraday rotation effect of the ionosphere. In the field of satellite communication, with the development of communication technology, higher requirements are put forward for the bandwidth and gain of communication ant...

Claims

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Application Information

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IPC IPC(8): H01Q1/48H01Q1/50H01Q19/10
Inventor 姜兴唐绍宇彭麟仇玉杰李晓峰廖欣韦佳孙竹竹王永琦
Owner GUILIN UNIV OF ELECTRONIC TECH
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