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Novel dual-stop band ultra wide band (UWB) antenna

A new type of technology with dual stop bands, applied in the direction of antenna coupling, radiation element structure, etc., can solve the problems of difficult adjustment of stop band center frequency, unfavorable system integration, large antenna volume, etc., and achieve compact structure, low cost and convenient processing Effect

Inactive Publication Date: 2017-06-20
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 dual-stop band ultra wide band (UWB) antenna
  • Novel dual-stop band ultra wide band (UWB) antenna
  • Novel dual-stop band ultra wide band (UWB) antenna

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Embodiment Construction

[0023] The invention designs a novel double-stop-band UWB antenna, and the filter can avoid mutual interference with a WLAN system.

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

[0025] Such as figure 1 As shown, a novel dual stopband UWB antenna of the present invention, the radiation unit (101) on the dielectric substrate, the impedance matching input microstrip line (102), the diamond-shaped etching fractal structure (106), and the cross-shaped EBG The electromagnetic bandgap structure (107), the cross-type EBG electromagnetic bandgap structure (103), adopts copper material.

[0026] 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.

[0027] The metal grounding plate (104) under the dielectric substrate is made of copper material.

[0028] Such as figure 1 As shown, the ...

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Abstract

A novel dual-stop band UWB antenna relates to the UWB band-stop antenna of which the notch frequency band is located at the WLAN and RFID frequency bands, and is composed of a dielectric substrate (105), a radiation unit (101) on the dielectric substrate, an impedance matching input microstrip line (102), a cross-shaped electromagnetic band gap (EBG) structure (103), an EBG structure (107) shaped like a Chinese character mi and a metal grounding plate (104) under the dielectric substrate. The novel dual-stop band UWB antenna of the present invention realizes the passband bandwidth required by the UWB by utilizing the radiation unit, the impedance matching input microstrip line and the metal grounding plate, utilizes the circular radiation unit with a rhombic fractal structure to improve the stop band attenuation inhibition, and utilizes the EBG structures to realize the band stop characteristic. The stop band of the antenna involved in the present invention is nearby 5.2 GHz and 6.8 GHz, thereby avoiding the mutual interference of a WLAN system and an RFID system.

Description

technical field [0001] The invention relates to a UWB band stop antenna, in particular to a novel double stop band UWB antenna, which can suppress the mutual interference problem of a WLAN system (5.15-5.35 GHz). 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 bandstop antennas, such as slots on the r...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/52
Inventor 郝术苗高爽王燕燕
Owner HARBIN HESON SCI & TECH
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