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An ultra-wideband slot antenna with filtering function

A slot antenna, ultra-wideband technology, applied in slot antennas, antennas, devices that make antennas work in different bands at the same time, etc., can solve the problems of high cost, large size of independent antennas and filters, and achieve improved suppression, good Frequency selection characteristics, good effect of out-of-band signal suppression

Active Publication Date: 2021-02-12
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an ultra-wideband slot antenna with filtering function, which solves the problems of large size and high cost of independent antenna and filter in the traditional radio frequency front end

Method used

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  • An ultra-wideband slot antenna with filtering function
  • An ultra-wideband slot antenna with filtering function
  • An ultra-wideband slot antenna with filtering function

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Embodiment Construction

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

[0020] refer to figure 1 , the structure of the microstrip ultra-broadband antenna with notch function of the present invention is that the dielectric plate is selected from Rogers plates or other plates using microwave frequency bands, such as Rogers, ceramics, etc. Considering that the operating frequency of the antenna is relatively high, the Rogers plate is high The frequency stability is better, and the RT / Duroid5880 dielectric plate of Rogers is preferred. The dielectric constant of the dielectric plate is 2.2 and the thickness is 0.787mm; Electric microstrip line 1 adopts high and low impedance feeding microstrip line structure, so that it has better frequency selection characteristics at high frequencies;

[0021] The antenna backplane 2 is provided with an open slot 3, and the position of the open slot 3 is coupled with the step fee...

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Abstract

The invention discloses an ultra-broadband slot antenna with filtering function, which comprises a dielectric plate, a stepped feed microstrip line is arranged on the top surface of the dielectric plate along the center line, an open slot slot is arranged in the antenna back plate, and the opening slot slot The position is coupled with the ladder feeding microstrip line; in the antenna backplane, a narrow-band slot is arranged adjacent to the opening slot. The present invention greatly improves the frequency selection characteristic of the sideband without increasing the size of the antenna itself, and improves the suppression of out-of-band interference signals, and is applied in ultra-wideband fields such as target detection, target tracking and short-distance wireless communication.

Description

technical field [0001] The invention belongs to the technical field of ultra-wideband antennas, and relates to an ultra-wideband slot antenna with filtering function. Background technique [0002] With the development of wireless communication technology, ultra-wideband communication technology has been well developed in recent years. As an important part of ultra-wideband communication, ultra-wideband antenna has received extensive research. [0003] In actual engineering applications, due to the wide bandwidth of UWB, it is easy to be affected by some interference signals outside the band. Introducing interference signals into the received signal will seriously affect the receiving performance of the receiver. In traditional engineering applications, a band-pass filter is usually connected in series behind the receiving antenna to suppress the interference of out-of-band signals. However, having the antenna and filtering as two separate components in this approach increa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P7/08H01Q1/38H01Q5/25H01Q13/10
CPCH01P7/08H01Q1/38H01Q13/10H01Q5/25
Inventor 席晓莉杨海龙赵雨辰王丽黎
Owner XIAN UNIV OF TECH
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