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A Cavity-Backed Slot Circularly Polarized Antenna Using Half-Model Substrate Integrated Waveguide

A half-mold substrate integration and circularly polarized antenna technology, which is applied in the direction of slot antenna, waveguide opening, radiation element structure, etc., can solve the problems of difficult planar circuit integration, large volume, low front-to-back ratio, etc., and achieve simple processing , easy to integrate, and the effect of widening the standing wave bandwidth

Active Publication Date: 2019-05-31
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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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.

Method used

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  • A Cavity-Backed Slot Circularly Polarized Antenna Using Half-Model Substrate Integrated Waveguide
  • A Cavity-Backed Slot Circularly Polarized Antenna Using Half-Model Substrate Integrated Waveguide
  • A Cavity-Backed Slot Circularly Polarized Antenna Using Half-Model Substrate Integrated Waveguide

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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] The circularly polarized cavity-backed slot antenna is composed of a half-mode substrate integrated waveguide back cavity and a semicircular annular slot radiation unit. 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 circularly polarized cavity-backed slot antenna of the present invention. The circles filled with oblique lines in the figure are all metallized through holes, in which a plurali...

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Abstract

The invention discloses a circularly polarized carinal cavity gap antenna adopting half module substrate integrated waveguide as a feeder line and a carinal cavity. The circularly polarized carinal cavity gap antenna is mainly composed of the half module substrate integrated waveguide carinal cavity, a feeder line and a gap radiation unit. The circularly polarized antenna has the advantages of being simple in design step, controllable in axial ratio performance, small in size, large in standing wave bandwidth and the like at work frequency points.

Description

technical field [0001] The invention relates to a circularly polarized cavity-backed slot antenna adopting HMSIW (Half-mode Substrate Integrated Waveguide, half-mode substrate integrated waveguide) technology with wide application prospects, belonging to the field of antenna technology. 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 and easy integration. 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 circularly polarized antenna can receive any polarized electromagnetic wave from any antenna, which can effectively improve the receiving and radiation efficiency, so it is widely used in actual jamming and electronic reconnaissance. Circu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q13/10H01Q13/06
CPCH01Q1/38H01Q13/06H01Q13/10
Inventor 王海明无奇余晨洪伟
Owner SOUTHEAST UNIV
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