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Folded cavity backed slot antenna based on substrate integrated waveguide

A substrate-integrated waveguide and slot antenna technology, applied in the field of communication antennas, can solve problems such as narrow bandwidth and achieve the effect of low profile

Pending Publication Date: 2020-08-07
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the bandwidth of existing cavity-backed slot antennas based on substrate-integrated waveguides is generally very narrow, only about 1.7%, which does not meet the requirements of modern communication systems

Method used

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  • Folded cavity backed slot antenna based on substrate integrated waveguide
  • Folded cavity backed slot antenna based on substrate integrated waveguide
  • Folded cavity backed slot antenna based on substrate integrated waveguide

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second" and ...

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Abstract

The invention discloses a folded cavity backed slot antenna based on a substrate integrated waveguide. The antenna comprises a first dielectric plate and a second dielectric plate which are arranged in a stacked manner, wherein a first metal plate and a second metal plate are respectively arranged on a surface and a back surface of the first dielectric plate, a first short-circuit nail group and asecond short-circuit nail group longitudinally penetrate through the surface and the back surface of the first dielectric plate, and a first gap structure and a second gap structure are respectivelyformed on the first metal plate and the second metal plate; a third metal plate and a fourth metal plate are respectively arranged on a surface and a back surface of the second dielectric plate, a third short-circuit nail group and a fourth short-circuit nail group longitudinally penetrate through the surface and the back surface of the second dielectric plate, and a third gap structure is formedon the third metal plate. According to the invention, a large working bandwidth is realized, the radiation pattern is stable, the directivity is good, and the gain in the working bandwidth is high.

Description

technical field [0001] The invention relates to the field of communication antennas, in particular to a folded cavity-backed slot antenna based on a substrate integrated waveguide. Background technique [0002] Modern microwave communication systems and millimeter wave communication systems put forward higher requirements for the miniaturization, integration and high performance of communication systems. The antenna is an important part of the communication system, and its performance will directly affect the performance of the entire communication system. Traditional cavity-backed slot antennas have disadvantages such as high profile, high cost and complex structure. The cavity-backed slot antenna using substrate integrated waveguide technology can make the antenna have the advantages of low profile, easy processing, low cost and planarization. However, the bandwidth of existing cavity-backed slot antennas based on substrate-integrated waveguides is generally very narrow,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q5/10H01Q5/307H01Q13/10H01P3/18
CPCH01Q1/38H01Q1/50H01Q13/10H01Q5/10H01Q5/307H01P3/18
Inventor 马溯刘菊华
Owner SUN YAT SEN UNIV
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