Ultra wideband band-notch antenna based on crossed type EBG (Electromagnetic Band Gap) structure

A crisscross type, ultra-wideband technology, applied in the directions of antenna, antenna coupling, radiating element structure, etc., can solve the problems of large antenna volume, difficult adjustment of stopband center frequency, unfavorable system integration, etc., to achieve low cost and compact structure. , the effect of convenient processing

Inactive Publication Date: 2015-06-03
HARBIN HESON SCI & TECH
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  • Abstract
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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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  • Ultra wideband band-notch antenna based on crossed type EBG (Electromagnetic Band Gap) structure
  • Ultra wideband band-notch antenna based on crossed type EBG (Electromagnetic Band Gap) structure
  • Ultra wideband band-notch antenna based on crossed type EBG (Electromagnetic Band Gap) structure

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Embodiment Construction

[0023] The invention designs an ultra-wideband band-stop antenna based on a cross-shaped EBG structure, and the filter can suppress mutual interference between a UWB system and an RFID system.

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

[0025] Such as figure 1 As shown, an ultra-wideband bandstop antenna based on a cross-type EBG structure of the present invention, a radiation unit (101) on a dielectric substrate, an impedance matching input microstrip line (102), a cross-type EBG electromagnetic bandgap structure ( 103), using 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. The metal grounding plate (104) under the dielectric substrate is made of copper.

[0027] An example of the present invention is image 3 As shown, the metal ground plate...

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Abstract

The invention discloses an ultra wideband band-notch antenna based on a crossed type EBG (Electromagnetic Band Gap) structure, relating to an ultra wideband band-notch antenna. The antenna comprises a dielectric substrate (105), a radiating element (101), an impedance matching input microstrip line (102) and a crossed type EBG structure which are arranged on the dielectric substrate, and a metal earthing plate (104) arranged under the dielectric substrate. The ultra wideband band-notch antenna realizes passband width required by UWB (ultra wideband) by using the radiating element, the impedance matching input microstrip line and the metal earthing plate, and realizes band stop characteristic by using the crossed type EBG electromagnetic band gap structure. According to the ultra wideband band-notch antenna disclosed by the invention, a stop band is near 6.8Ghz, and the mutual interference with an RFID (Radio Frequency Identification) system is avoided.

Description

technical field [0001] The invention relates to an ultra-wideband band-rejection antenna, in particular to an ultra-wideband band-rejection antenna based on a cross-type EBG structure, which can suppress mutual interference between an ultra-wideband 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 man...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/52H01Q13/08
Inventor 喻人杰刘雷张冰然
Owner HARBIN HESON SCI & TECH
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