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Multi-band frequency antenna with cavity-backed type half-mode substrate integrated waveguide and bent slots

A half-mode substrate integration, slot antenna technology, applied in slot antennas, antennas, devices that make antennas work in different frequency bands at the same time, etc. Small size, good radiation, improved impedance matching effect

Active Publication Date: 2014-06-04
迁安市云璐杰盛科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The section height of the cavity-backed antenna based on the conventional metal cavity is too large, which cannot meet the requirements of some application fields

Method used

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  • Multi-band frequency antenna with cavity-backed type half-mode substrate integrated waveguide and bent slots
  • Multi-band frequency antenna with cavity-backed type half-mode substrate integrated waveguide and bent slots
  • Multi-band frequency antenna with cavity-backed type half-mode substrate integrated waveguide and bent slots

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Embodiment Construction

[0021] Further description will be made below in conjunction with the accompanying drawings and specific embodiments. It 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 reading the present invention, those skilled in the art all fall into the appended claims of the present application to the amendments of various equivalent forms of the present invention limited range.

[0022] figure 1 and figure 2 A specific embodiment of a multi-band cavity-backed half-mode substrate integrated waveguide bending slot antenna of the present invention is shown. A multi-band cavity-backed half-mode substrate integrated waveguide bending slot antenna of the present invention comprises a feeding microstrip line 7 with a gradually changing width and a cavity-backed half-mode substrate integrated waveguide, the cavity-backed half-mode substrate The chip integrated waveguide is ...

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Abstract

The invention discloses a multi-band frequency antenna with a cavity-backed type half-mode substrate integrated waveguide and bent slots. The multi-band frequency antenna comprises a feed microstrip line with the gradually varied widths and the cavity-backed type half-mode substrate integrated waveguide, wherein the cavity-backed type half-mode substrate integrated waveguide is provided with two rows of orthogonal metalized through holes; one or an even number of slots shaped like a Chinese character 'ji' are formed in a resonant cavity of the cavity-backed type half-mode substrate integrated waveguide; the even number of slots are connected and are symmetrical left and right; the opening direction of the slots is perpendicular to the long edge of a medium substrate. The multi-band frequency antenna has the advantages that the bent slots are adopted to play a role in changing current and field distribution of the antenna so as to change impedance matching of the antenna and especially change impedance matching of a low-frequency stage. The working frequency of the antenna is changed by changing the number of the bent slots. A large metal cavity in a cavity-backed type antenna is replaced with the two rows of metalized through holes and metal layers on the upper surface and the lower surface of the medium substrate, so that the size of the antenna decreases.

Description

technical field [0001] The invention relates to a multi-frequency band cavity-backed half-mode substrate integrated waveguide slot antenna in the technical field of wireless communication, in particular to a multi-frequency band cavity-backed half-mode substrate integrated waveguide bending slot antenna working in the microwave frequency band. Background technique [0002] With the rapid development of wireless communication, multiple communication standards are often integrated in a communication system, and communication devices often need to support multi-band work. In order to reduce electromagnetic interference and reduce costs, it is necessary to use antennas that support multiple frequency bands in the system. In recent years, various approaches to realize multi-band antennas have emerged, such as deformed planar monopole antennas, improved planar inverted F (PIFA) antennas, and other planar slot antennas using various slot forms. Among these antennas, most are bidir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q13/18H01Q5/01H01Q1/38H01Q1/36H01Q5/10
Inventor 谭立容刘豫东张照锋王抗美
Owner 迁安市云璐杰盛科技有限公司
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