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Voltage tunable dielectric ceramics which exhibit low dielectric constants and applications thereof to antenna structure 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H01Q-001/38
출원번호 US-0260053 (1994-06-15)
발명자 / 주소
  • Varadan Vijay K. (State College PA) Selmi Fathi (Tunisia TNX) Varadan Vasundara V. (State College PA)
출원인 / 주소
  • The Penn State Research Foundation (University Park PA 02)
인용정보 피인용 횟수 : 69  인용 특허 : 0

초록 ▼

An improved BST dielectric powder is created used a sol-gel procedure. Addition of graphite to the powder, followed by a firing of the mixture results in a highly porous BST substrate, with the included graphite being burned off. By adjustment of the amount of added graphite, the porosity of the BST

대표청구항 ▼

An antenna comprising: means for feeding an electromagnetic signal: a radiating surface; a dielectric phase shift structure positioned between said means for feeding and said radiating surface, said dielectric phase shift structure comprising a porous ceramic matrix including barium strontium titana

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