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

A CLV-EBG, double notch technology, applied in antenna coupling, antenna grounding device, radiating element structure and other directions, can solve the problems of increasing the size of the antenna, the notch is not easy to control independently, and affecting the radiation characteristics of the antenna. The effect of miniaturization, small structure size, 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 CLV-EBG (CLV-electromagnetic band gap) structure
  • Dual-notch UWB (ultra wide band) antenna based on CLV-EBG (CLV-electromagnetic band gap) structure
  • Dual-notch UWB (ultra wide band) antenna based on CLV-EBG (CLV-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 double-notch UWB antenna based on the CLV-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 CLV-EBG units (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 standing w...

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Abstract

The invention relates to a dual-notch UWB (ultra wide band) antenna based on a CLV-EBG (CLV-electromagnetic band gap) structure, and relates to the field of UWB wireless communication. 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 corner via mushroom-like CLV-EBG structure units (40 and 50). The two corner via mushroom-like CLV-EBG structure units (40 and 50) with different size parameters can be respectively coupled with the 50 ohm feeder line (31) of a regular hexagon-shaped UWB antenna, so the miniaturizing, UWB and good radiating properties of the antenna are guaranteed, and 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 used in the field of ultra-wideband (UWB) wireless communication, in particular to a double-notch UWB antenna based on a CLV-EBG structure. Coupling the mushroom-shaped electromagnetic bandgap structure (CLV-EBG) with the corner via hole and the feeder of the regular hexagonal ultra-wideband (UWB) antenna effectively filters out the Worldwide Interconnection for Microwave Access (WIMAX) and Wireless Personal Area Network (WLAN) two frequency band signals. Background technique [0002] In February 2002, the Federal Communications Commission (FCC) of the United States designated the 3.1-10.6GHz frequency band for commercial UWB wireless communication services. One of the key technologies of UWB wireless communication has become a research hotspot. Since the working frequency band of the UWB system overlaps with some frequency bands of the existing wireless communication system, such as the global microwave interconne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/52
Inventor 张道亮孔媛媛李琦
Owner HARBIN FEIYU TECH
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