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A Broadband Planar Substrate Integrated Waveguide Cavity Backed Slot Antenna Working in Five Modes

A technology that integrates waveguides and slot antennas. It is used in slot antennas, antennas, and devices that make antennas work in different bands at the same time. Simple, easy-to-integrate effects

Active Publication Date: 2020-06-16
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional cavity-backed antenna has the advantages of high gain and low front-to-back ratio, but it also has the disadvantages of being too large and not easy to integrate with planar circuits.
[0003] The cavity-backed slot antenna based on SIW can well meet the practical requirements of planarization and easy integration, but it also brings the problem of narrow bandwidth

Method used

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  • A Broadband Planar Substrate Integrated Waveguide Cavity Backed Slot Antenna Working in Five Modes
  • A Broadband Planar Substrate Integrated Waveguide Cavity Backed Slot Antenna Working in Five Modes
  • A Broadband Planar Substrate Integrated Waveguide Cavity Backed Slot Antenna Working in Five Modes

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Embodiment Construction

[0018] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0019] Five-mode broadband planar substrate integrated waveguide cavity-backed slot antenna, the cavity-backed slot antenna is mainly composed of a microstrip line feeder 55, a substrate-integrated waveguide back cavity, a slot radiation unit, and two pairs of asymmetric short-circuit vias 3 and 4 . The antenna is processed by a single-layer printed circuit board (Printed Circuit Board, PCB) process.

[0020] figure 1 It is a top view of the antenna of the present invention. The antenna body in...

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Abstract

The invention discloses a five-mode broadband planar substrate integrated waveguide back cavity slot antenna, which is mainly composed of a substrate integrated waveguide back cavity, a cross-shaped radiation slot and an asymmetrical short-circuit metallized through hole. The antenna of the invention has the advantages of simple structure, low profile, easy machining, wide bandwidth and the like in the working frequency band.

Description

technical field [0001] The invention relates to a broadband planar substrate integrated waveguide (Substrate Integrated Waveguide, SIW) cavity-backed slot antenna that works in five modes, and belongs to the technical field of antennas. Background technique [0002] Antennas are an important part of wireless communication systems. With the rapid development of wireless communication, there is an urgent need for antennas with small size, low cost, high gain, easy integration and broadband. Traditional cavity-backed antennas have the advantages of high gain and low front-to-back ratio, but they also have disadvantages such as large size and difficulty in integrating with planar circuits. [0003] The cavity-backed slot antenna based on SIW can well meet practical requirements such as planarization and easy integration, but it also brings the problem of narrow bandwidth. By loading the air dielectric layer, adding resonant patches, and adding resonant modes, the bandwidth of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q5/10H01Q5/28H01Q5/307H01Q13/18H01Q25/04
CPCH01Q1/38H01Q1/50H01Q5/10H01Q5/28H01Q5/307H01Q13/18H01Q25/04
Inventor 王海明无奇尹杰茜余晨洪伟
Owner SOUTHEAST UNIV