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A Broadband Low Profile Microstrip Patch Antenna Based on Complementary Slit Resonant Ring

A microstrip patch antenna and slit resonance technology, applied in the field of antennas, can solve the problems of reducing the ratio of radiated energy before and after, reducing the radiation efficiency and gain of the antenna, and enhancing the backward radiation, etc., to achieve compact structure, simple antenna form, and easy integration. Effect

Inactive Publication Date: 2016-05-25
CHONGQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, loading the metamaterial unit on the radiation patch will significantly reduce the radiation efficiency and gain of the antenna; at the same time, corroding the metamaterial structure at the bottom will inevitably enhance the backward radiation and reduce the front-to-back ratio of the radiation energy.

Method used

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  • A Broadband Low Profile Microstrip Patch Antenna Based on Complementary Slit Resonant Ring
  • A Broadband Low Profile Microstrip Patch Antenna Based on Complementary Slit Resonant Ring
  • A Broadband Low Profile Microstrip Patch Antenna Based on Complementary Slit Resonant Ring

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0025] refer to figure 1 , figure 2 , image 3 and Figure 4 , the present invention shows a disclosed wideband low-profile microstrip patch antenna based on a complementary split resonant ring, including a radiating part, a parasitic part, a dielectric substrate, a ground plate and a feeder line, and the radiating part includes a metal radiating patch, The metal radiation patch is a metal sheet with a special symmetrical structure, which is formed by protruding on one side of the rectangular metal sheet and concave on the other side;

[0026] The parasitic part includes a metal parasitic patch with a rectangular structure and a complementary slit resonant ring, and a circular hole is arranged on the metal parasitic patch, and the complementary slit resonant ring surrounds the circular hole and is arranged on the metal parasitic patch; and the The center...

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Abstract

The invention discloses a broadband low-profile microstrip patch antenna based on a complementary split ring resonator and belongs to the technical field of antenna. The broadband low-profile microstrip patch antenna comprises a radiation part, a parasitic part, a dielectric substrate, a ground plate and a feeder line, wherein the radiation part comprises a metallic radiation patch. The parasitic part comprises a metallic parasitic patch of a rectangular structure and the complementary split ring resonator, wherein a round hole is formed in the metallic parasitic patch, the complementary split ring resonator surrounds the round hole and is arranged on the metallic parasitic patch, and the center of the complementary split ring resonator and the center of the round hole are positioned on a symmetrical line of the metallic parasitic patch. By arranging the parasitic patch with the complementary split ring resonator between the radiation sheet and the ground plate, an impedance bandwidth of the antenna is increased by four times, and the broadband low-profile microstrip patch antenna is good in impedance matching and high in radiation efficiency and broadside peak gain.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a broadband low-profile microstrip patch antenna based on a complementary split resonant ring. Background technique [0002] Microstrip patch antennas are an attractive antenna type because of their low cost, light weight, conformal features, and ease of mass production. However, the main obstacle in the application of microstrip patch antennas is the extremely limited operating bandwidth. The impedance bandwidth of a typical microstrip patch antenna is only on the order of a few percent. Therefore, a lot of research work is focused on how to expand the frequency bandwidth of the microstrip patch antenna. For example, the currently popular layered chip technology, aperture coupling technology, E-type chip technology, etc. However, in order to obtain a fractional impedance bandwidth of more than 20%, the above technologies require a thicker dielectric substrate or air layer, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/50
Inventor 唐明春郭李谭晓衡曾孝平
Owner CHONGQING UNIV
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