Novel dual-notch ultra wide band (UWB) antenna

A double-notch and antenna technology, which is applied to antennas, devices that enable antennas to work in different bands at the same time, and the structural form of radiation elements, can solve problems such as large antenna size, unfavorable system integration, and difficult adjustment of the center frequency of the stop band. Achieve the effect of low cost, convenient processing and compact structure

Inactive Publication Date: 2017-06-20
HARBIN FEIYU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods have limitations, such as the large size of the antenna, which is not conducive to system integration; the center frequency of the stop band is not easy to adjust

Method used

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  • Novel dual-notch ultra wide band (UWB) antenna
  • Novel dual-notch ultra wide band (UWB) antenna
  • Novel dual-notch ultra wide band (UWB) antenna

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Embodiment Construction

[0022] The invention designs a novel double-stop-band UWB antenna, and the filter can avoid mutual interference with a WLAN system and a WiMAX system.

[0023] Below in conjunction with accompanying drawing, invention is described in more detail:

[0024] Such as figure 1 As shown, a novel dual stopband UWB antenna of the present invention, the radiation unit (101) on the dielectric substrate, the impedance matching input microstrip line (102), and the DGS structure (103) are made of copper material.

[0025] An example of the present invention is figure 2 As shown, the dielectric substrate (106) is FR4 material with a dielectric constant of 4.4, and the thickness of the dielectric substrate is 1.6mm.

[0026] The metal ground plate under the dielectric substrate is made of copper material.

[0027] Such as figure 2 As shown, the lengths of Rh, h1, h2, h3, f1, and f2 are 10mm, 14mm, 4mm, 12mm, 10mm, and 3mm respectively; image 3 As shown, the lengths of G, Wd, Ld, L1, ...

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Abstract

A novel dual-notch UWB antenna relates to a UWB band-stop antenna of which the notch frequency band is located at the WLAN and WiMAX frequency bands, and is composed of a dielectric substrate (106), a radiation unit (101) formed on the dielectric substrate, an impedance matching input microstrip line (102) and a defected ground structure (DGS) (107). A groove (103) is notched on the radiation unit (101) on the dielectric substrate, and the DGS is composed of a T-shaped groove (104) and a circular groove structure (105). The novel dual-notch UWB antenna of the present invention realizes the passband bandwidth required by the UWB by utilizing the radiation unit, the impedance matching input microstrip line and a metal grounding plate, utilizes the circular radiation unit to improve the stop band attenuation inhibition, and utilizes the DGS and the groove on the radiation unit to realize the notch characteristic. The stop band of the antenna involved in the present invention is nearby 3.7 GHz and 5.75 GHz, thereby avoiding the mutual interference of a WLAN system and a WiMAX system.

Description

technical field [0001] The present invention relates to a kind of UWB notch wave antenna, relate to a kind of novel double notch wave UWB antenna especially, this antenna can suppress ultra-wideband system to WiMAX system (3.3-3.7GHz), WLAN system (5.15-5.35GHz), ( 5.725-5.825GHz) interference. Background technique [0002] In February 2002, the US Federal Communications Commission (FCC) approved the 3.1-10.6GHz frequency band for commercial communications, so UWB is widely used. [0003] However, due to the wide frequency band covered by UWB communication, some frequency bands share frequency band resources with other wireless systems, and may interfere with other systems, such as WiMAX system (3.3-3.7GHz) and WLAN system (5.15-5.35GHz), ( 5.725-5.825GHz). How to solve co-channel interference has become an important content of UWB research, so ultra-wideband antennas with stopband characteristics have high practical value. [0004] In recent years, there have been many d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q5/25H01Q5/314
Inventor 郝术苗高爽王燕燕
Owner HARBIN FEIYU TECH
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