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Dual-notch UWB (ultra wide band) antenna based on Mushroom-EBG (electromagnetic band gap) structure

A double notch and antenna technology, which is applied in the directions of antenna coupling, antenna grounding device, radiating element structure, etc., can solve the problems of increasing the size of the antenna, difficult independent control of the notch, and affecting the radiation characteristics of the antenna, etc., to ensure miniaturization , Simple structure, stable gain effect

Inactive Publication Date: 2015-06-03
HARBIN FEIYU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to improve the existing UWB antenna notch technology, which affects the antenna radiation characteristics, increases the size of the antenna, and notches are not easy to control independently.

Method used

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  • Dual-notch UWB (ultra wide band) antenna based on Mushroom-EBG (electromagnetic band gap) structure
  • Dual-notch UWB (ultra wide band) antenna based on Mushroom-EBG (electromagnetic band gap) structure
  • Dual-notch UWB (ultra wide band) antenna based on Mushroom-EBG (electromagnetic band gap) structure

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Such as figure 1 , figure 2 As shown, the dual-notch UWB antenna based on the Mushroom-EBG structure includes a part of the metal ground plate (10), a dielectric substrate (20), an antenna radiation patch (30), a 50-ohm feeder (31) and two different size parameters The Mushroom-EBG unit (40, 50). Part of the ground plate (10) is located on the bottom surface of the dielectric substrate (20), and there is a certain distance (L 1 -Lg), this distance is used to adjust the impedance matching of UWB antenna high frequency band. In the center of the middle part of the top edge on part of the metal grounding plate (10), a width of W is etched. s , length is L s The width of the rectangular slot (11) is equal to that of the 50 ohm feeder (31), and the rectangular slot is used to improve the broadband characteristics of the antenna and increase the bandwidth of the...

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Abstract

The invention relates to a dual-notch UWB (ultra wide band) antenna based on a Mushroom-EBG (electromagnetic band gap) structure. The dual-notch UWB antenna comprises a partial metal grounding plate (10), a medium substrate (20), an antenna radiating patch (30), a 50 ohm feeder line (31) and two Mushroom-EBG structure units (40 and 50). The two Mushroom-EBG structure units (40 and 50) with different size parameters are respectively coupled with the 50 ohm feeder line (31) of a regular hexagon-shaped UWB antenna, so the signals of two frequency bands, namely WIMAX (worldwide interoperability for microwave access) and WLAN (wireless local area network), can be effectively filtered out. The dual-notch UWB antenna has the advantages that the antenna has good all-bearing radiating property and stable gain effect in the full frequency band, the notch property is good, and the antenna is suitable for the UWB wireless communication system.

Description

technical field [0001] The invention relates to an antenna, in particular to a double-notch UWB antenna based on a Mushroom-EBG structure. Coupling the mushroom-shaped electromagnetic bandgap structure (Mushroom-EBG) with the feeder of the regular hexagonal ultra-wideband (UWB) antenna effectively filters out the global microwave interconnection while ensuring the miniaturization, broadband, and good radiation characteristics of the antenna. Incoming (WIMAX) and wireless personal area network (WLAN) two frequency band signals, suitable for UWB wireless communication systems. Background technique [0002] In February 2002, the U.S. Federal Communications Commission (Federal Communications Commission: FCC) designated the 3.1-10.6GHz frequency band for commercial UWB wireless communication services. As one of the key technologies of communication, it has become a research hotspot. Since the working frequency band of the UWB system overlaps with some frequency bands of the exi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/52
Inventor 张道亮金佳佳喻人杰
Owner HARBIN FEIYU TECH
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