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
CN104681963AInactive Publication Date: 2015-06-03HARBIN HESON SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN HESON SCI & TECH
Publication Date
2015-06-03
Estimated Expiration
Not applicable · inactive patent

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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.
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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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