Novel tri-wave trapping UWB (Ultra Wide Band) antenna

An ultra-wideband antenna and three-notch technology, applied in the field of antennas, can solve the problems of increasing the size of the antenna, affecting the radiation characteristics of the antenna, and the difficulty of independent control of the notch, so as to ensure miniaturization, stable gain effect, and prolong the equivalent current. effect of path

Inactive Publication Date: 2015-06-03
HARBIN FEIYU TECH
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  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to improve the existing UWB antenna notch technology, which affects the

Method used

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  • Novel tri-wave trapping UWB (Ultra Wide Band) antenna
  • Novel tri-wave trapping UWB (Ultra Wide Band) antenna
  • Novel tri-wave trapping UWB (Ultra Wide Band) antenna

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Such as figure 1 , figure 2 As shown, a new type of triple-notch ultra-wideband antenna, including a partial metal ground plate (10), a dielectric substrate (20), an antenna radiation patch (30), a 50-ohm feeder (31) and three different sizes of L shaped slot EBG units (40, 50, 60). 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 wave...

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Abstract

The invention relates to a novel tri-wave trapping UWB (Ultra Wide Band) antenna which comprises a partial metal earth plate (10), a dielectric substrate (20), an antenna radiation patch (30), a 50-ohm feeder line (31) and three L-shaped groove EBG (Electromagnetic Band Gap) structural units (40,50,60). The three L-shaped groove EBG structural units (40,50,60) which are different in size are respectively coupled with the 50-ohm feeder line (31) of a round monopole UWB antenna, so that signals of three frequency bands, namely WIMAX (World Interoperability for Microwave Access) (3.3GHz-3.6GHz) and WLAN (Wireless Local Area Network) (5.15GHz-5.35GHz, 5.725-5.825GHz), are effectively filtered out while the miniaturization, wide band and favorable radiation characteristic of the antenna are ensured. The antenna has a favorable omnidirectional radiation characteristic in a whole frequency band, and is stable in gain effect, favorable in wave trapping characteristic and applicable to the field of UWB wireless communication.

Description

technical field [0001] The invention relates to an antenna, in particular to a novel triple-notch ultra-wideband antenna. 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 antennas As one of the key technologies of UWB wireless communication, it 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 interconnection access (WIMAX, 3.3GHz-3.6GHz), wireless personal area network (WLAN, (5.15GHz-5.35GHz, 5.725GHz- 5.825GHz)), etc. In order to reduce the interference caused by UWB antennas to system communications in these frequency bands, UWB antennas with notch...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50
Inventor 张道亮孔媛媛金佳佳
Owner HARBIN FEIYU TECH
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