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"" 따옴표 내의 구문과 완전히 일치하는 문서만 검색 예) "Transform and Quantization"

특허 상세정보

High-selectivity electromagnetic bandgap device and antenna system

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H01Q-015/02    H01Q-015/00   
미국특허분류(USC) 343/909
출원번호 US-0909213 (2004-07-30)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    McKee, Voorhees &
인용정보 피인용 횟수 : 25  인용 특허 : 10
초록

An antenna system includes an antenna element and an electromagnetic bandgap element proximate the antenna element wherein the electromagnetic bandgap element is optimized for narrow bandwidth operation thereby providing radiofrequency selectivity to the antenna system. Preferably the electromagnetic bandgap element is tunable such as through use of a bias-alterable dielectric substrate or other tuning mechanism. The design approach also provides a means of creating an ultra-thin low-profile narrowband tunable channel selective antenna system suitable fo...

대표
청구항

What is claimed is: 1. An antenna system comprising: an antenna element; an electromagnetic bandgap element proximate the antenna element; wherein the electromagnetic bandgap element comprises a substrate with a metallic backing and a mosaic of conductive patches on a surface of the substrate optimized for narrow bandwidth operation thereby providing radiofrequency selectivity; and a thin high-resistivity coating on the mosaic for allowing an even application of a bias voltage between the mosaic and the substrate. 2. The antenna system of claim 1 w...

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