Novel attenuation band steep UWB (Ultra Wide Band) band-notch antenna

A new type of stop-band technology, applied in the directions of antenna, antenna coupling, radiating element structure, etc., can solve the problems of large antenna volume, unfavorable system integration, difficult adjustment of stop-band center frequency, etc., and achieves low cost, convenient processing and structure. compact effect

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

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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 attenuation band steep UWB (Ultra Wide Band) band-notch antenna
  • Novel attenuation band steep UWB (Ultra Wide Band) band-notch antenna
  • Novel attenuation band steep UWB (Ultra Wide Band) band-notch antenna

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Embodiment Construction

[0023] The invention designs a novel UWB band-stop antenna with a steep stop band, and the filter can suppress the mutual interference between the UWB system and the RFID system.

[0024] Below in conjunction with accompanying drawing, invention is described in more detail:

[0025] Such as figure 1 As shown, the novel UWB bandstop antenna with steep stopband of the present invention, the radiation unit (101) on the dielectric substrate, the impedance matching input microstrip line (102), and the cross-type EBG electromagnetic bandgap structure (103), adopt copper Material.

[0026] Such as figure 1 As shown, the stopband attenuation suppression is improved by the Sierpinski triangular fractal structure (106).

[0027] An example of the present invention is figure 2 As shown, the dielectric substrate (105) is a GML1000 material with a dielectric constant of 3.2. The dielectric substrate has a thickness of 0.762mm. The metal grounding plate (104) under the dielectric sub...

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Abstract

The invention discloses a novel attenuation band steep UWB (Ultra Wide Band) band-notch antenna, and relates to an UWB band-notch antenna. The novel attenuation band steep UWB band-notch antenna is formed by a dielectric substrate (105), a radiation unit (101) on the dielectric substrate, a Sierpinski triangular fractal structure (106), an impedance matching input micro-strip line (102), a cross-shaped EBG (Electromagnetic Band Gap) structure (103) and a metal grounding plate (104) under the dielectric substrate. According to the novel attenuation band steep UWB band-notch antenna disclosed by the invention, passband width required by UWB can be realized by utilizing the radiation unit, the impedance matching input micro-strip line and the metal grounding plate, and a steep attenuation band is formed by utilizing the cross-shaped EBG structure (103) and the Sierpinski triangular fractal structure on the radiation unit; the frequency of an antenna attenuation band is about 6.8Ghz, and the mutual interference with an RFID (Radio Frequency Identification device) system (the frequency is 6.8Ghz) is avoided.

Description

technical field [0001] The invention relates to an ultra-wideband band-stop antenna, in particular to a novel UWB band-stop antenna with a steep stop band, which can suppress mutual interference between an ultra-wide band system and an RFID system. 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 (3.2-3.5GHz), WLAN system (5.15-5.35GHz), ( 5.725-5.825GHz) and RFID systems (6.8GHz). 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 design ideas for UWB bands...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/52H01Q13/08
Inventor 喻人杰汪小君张道亮
Owner HARBIN HESON SCI & TECH
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