UWB (ultra wide band) antenna with WLAN (wireless local area network) dual-notch property

An ultra-wideband antenna and double notch technology, applied in the field of antennas, can solve the problems of affecting antenna radiation characteristics, difficult independent control of notches, and increasing antenna size, etc., to achieve easy integration, extend the equivalent current path, and ensure miniaturization 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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  • UWB (ultra wide band) antenna with WLAN (wireless local area network) dual-notch property
  • UWB (ultra wide band) antenna with WLAN (wireless local area network) dual-notch property
  • UWB (ultra wide band) antenna with WLAN (wireless local area network) dual-notch property

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] Such as figure 1 , figure 2 As shown, an ultra-wideband antenna with WLAN dual-notch characteristics, including a part of the metal ground plate (10), a dielectric substrate (20), an antenna radiation patch (30), a 50-ohm feeder (31) and two dimensions Different L-slot 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 l -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 standin...

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Abstract

The invention relates to an UWB (ultra wide band) antenna with WLAN (wireless local area network) dual-notch property, and relates to the field of UWB wireless communication. The 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 L-shaped groove EBG (electromagnetic band gap) structure units (40 and 50). The two L-shaped groove EBG structure units (40 and 50) with different sizes 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 (5.15-5.35GHz and 5.725-5.825GHz) of the WLAN can be effectively filtered. The 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 an ultra-wideband antenna with WLAN double notch characteristics. Three L-shaped slots are etched in the mushroom-shaped electromagnetic bandgap structure (CLV-EBG) at the corner vias, and coupled with the feeder of the regular hexagonal ultra-wideband (UWB) antenna, ensuring the miniaturization, wide-band, and good performance of the antenna. At the same time, it effectively filters out the signals of two frequency bands (5.15GHz-5.35GHz, 5.725GHz-5.825GHz) of wireless personal area network (WLAN). Background technique [0002] In February 2002, the US Federal Communications Commission (Federal Communications Commission: FCC) designated the 3.1GHz to 10.6GHz frequency band for commercial UWB wireless communication services. Since then, ultra-wideband technology has achieved rapid development, and the research and design of UWB antenna...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50
Inventor 张道亮张冰然金佳佳
Owner HARBIN FEIYU TECH
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