[특허]Tuneable electric antenna apparatus including ferroelectric material

Tuneable electric antenna apparatus including ferroelectric material 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01Q-015/02
출원번호	US-0484012 (1995-06-07)
발명자 / 주소	Yandrofski Robert M. (Littleton CO) Price John C. (Boulder CO) Barnes Frank (Boulder CO) Hermann Allen M. (Golden CO) Scott James F. (Boulder CO)
출원인 / 주소	Superconducting Core Technologies, Inc. (Golden CO 02)
인용정보	피인용 횟수 : 103 인용 특허 : 0

초록 ▼

The disclosure relates to ferroelectric and superconducting thin films used in combination to produce low-loss passive microwave and millimeter wave devices which are frequency tuneable. Various metal oxide superconducting and ferroelectric thin films can be deposited in numerous multilayer geometries via a variety of deposition techniques to produce devices which can manipulate microwave and millimeter wave signals through the application of voltage bias signals across the ferroelectric films. Numerous superconducting microwave and millimeter wave devices, including delay lines, phase shifters, resonators, oscillators, filters, electrically-small antennas, half-loop antennas, directional couplers, patch antennas, and various radiative gratings, are made frequency-tuneable by utilizing voltage-tuneable capacitor structures fabricated from voltage-biased ferroelectric thin films. Tuneable antenna arrays are also disclosed incorporating the combined superconducting and ferroelectric thin film structures and geometries which allow for electrical steering of beam patterns by the application of one or more voltage bias signals to ferroelectric thin film gratings.

대표청구항 ▼

A tuneable electric antenna apparatus for passing radio frequency energy comprising at least a first tuneable electric antenna component that includes an elongated base portion of a thin film ferroelectric material having a dielectric property, the dielectric property of the ferroelectric material being a function of a voltage applied to the thin film ferroelectric material, a plurality of elements extending from the base portion and spaced apart from one another at a predetermined interval along the length of the base portion, the predetermined interval between each of the plurality of elements providing a predetermined time delay for radio frequency energy, the predetermined time delay between each of the plurality of elements causing the radio frequency energy to be passed at a common predetermined angle with respect to each of the plurality of elements, wherein, when a predetermined voltage is applied to the thin film ferroelectric material, the dielectric property of the thin film ferroelectric material located between each of the plurality of elements changes and the radio frequency energy passes through the thin film ferroelectric material located between each of the plurality of elements to yield said common predetermined angle.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Tuneable electric antenna apparatus including ferroelectric material 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (103)

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Tuneable electric antenna apparatus including ferroelectric material 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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전체(0) 논문(0) 특허(0) 보고서(0)

이 특허를 인용한 특허 (103)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

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