Novel groove type ultra-wideband microstrip slot antenna

A technology of microstrip slot and groove type, which is applied in the direction of slot antenna, antenna, antenna grounding device, etc., can solve the problems of complex fabrication and large size of ultra-wideband antenna, and achieve the effect of simple structure, easy processing and reduced size

Pending Publication Date: 2019-08-30
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problems existing in the prior art, the present invention provides a novel groove-type ultra-wideband microstrip slot antenna, which solves the problems of complex manufacture and large size of the common ultra-wideband antenna in the prior art

Method used

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  • Novel groove type ultra-wideband microstrip slot antenna
  • Novel groove type ultra-wideband microstrip slot antenna
  • Novel groove type ultra-wideband microstrip slot antenna

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Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] The planar structure of the UWB slot antenna of the present invention is as figure 1 , figure 2 As shown, conventional preparation methods and conventional raw materials are used for preparation.

[0021] The dielectric substrate is an FR4 dielectric substrate 1, and a metal ground plate 2 is provided on the back of the dielectric substrate 1;

[0022] An input feeder 3 is provided on the lower right side of the front of the dielectric substrate 1; the metal ground plate 2 has a groove-shaped gap, which is obtained by subtracting the rectangle 4 and the 1 / 2 circle 5;

[0023] The length × width × height of the dielectric substrate 1 = 55 × 55 × 1.5mm, the material used is FR4, its dielectric constant is 4.4, and the loss is 10 -5 .

[0024] The above-mentioned input feeder 3 is a microstrip line with a characteristic impedance of 50 ohms, which is a micro...

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Abstract

The invention discloses a novel groove type ultra-wideband microstrip slot antenna. The novel groove type ultra-wideband microstrip slot antenna comprises a dielectric substrate and a metal groundingplate, wherein the metal grounding plate is arranged on the back surface of the dielectric substrate; an input feeder line is arranged at the right lower part of the front surface of the dielectric substrate; the metal grounding plate is provided with a groove-shaped gap which is obtained by subtracting a rectangle from a 1 / 2 circle. The novel groove type ultra-wideband microstrip slot antenna adopts the method of forming the groove type gap on the grounding plate to widen the bandwidth of the antenna and reduce the size of the antenna, and the bandwidth of the antenna reaches 182 percent. Thenovel groove type ultra-wideband microstrip slot antenna is simple in structure, easy to process and high in gain in a frequency band range, and is capable of suppressing the WLAN narrow-band system.

Description

technical field [0001] The invention relates to a microstrip slot antenna, in particular to a novel groove type ultra-wideband microstrip slot antenna. Background technique [0002] As a resonant antenna, the microstrip antenna has its inherent shortcoming—narrow impedance bandwidth, which seriously affects its wide application in the microwave field. With the rapid development of mobile communications, communication systems have higher and higher requirements for antenna bandwidth, especially after the FCC (Federal Communications Commission of the United States) classified the 3.1-10.6GHz frequency band as an ultra-wideband civilian frequency band in February 2002, ultra-wideband Wideband antennas have gradually become a research hotspot. Therefore, it is of great significance to broaden the bandwidth of microstrip antennas to the UWB frequency band. [0003] Generally speaking, there are three ways to increase the bandwidth of the antenna: 1) Gradual impedance thinking: B...

Claims

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Application Information

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IPC IPC(8): H01Q1/48H01Q1/50H01Q13/10
CPCH01Q1/48H01Q1/50H01Q13/106
Inventor 于仕辉娄文涛
Owner TIANJIN UNIV
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