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TRANSMISSION LINE RESONATOR, BAND-PASS FILTER AND BRANCHING FILTER

外国特許コード F130007700
整理番号 S2012-0029-C0
掲載日 2013年11月12日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2012JP075536
国際公開番号 WO 2013/051570
国際出願日 平成24年10月2日(2012.10.2)
国際公開日 平成25年4月11日(2013.4.11)
優先権データ
  • 特願2011-222918 (2011.10.7) JP
発明の名称 (英語) TRANSMISSION LINE RESONATOR, BAND-PASS FILTER AND BRANCHING FILTER
発明の概要(英語)

A conventional single transmission line resonator with a short circuit at both ends has the problem that the size of the resonator is constrained to 1/2 of the wavelength thereof. This transmission line resonator which has distributed coupled lines is provided with distributed coupled lines (12a and 12b) such that distributed-constant lines are disposed in parallel so as to be spaced apart by only a predetermined distance, a uniform line (11) for which one end of each of the distributed coupled lines (12a and 12b) is connected to both ends thereof, and a short-circuit ground portion (13) to which the other end of each of the distributed coupled lines (12a and 12b) is connected. This transmission line resonator which has distributed coupled lines is capable of lowering the resonant frequency thereof by increasing the coupling degree of the distributed coupled lines (12a and 12b), and therefore, it is possible to decrease the size of the resonator.

  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • THE UNIVERSITY OF ELECTRO-COMMUNICATIONS,
  • WADA, KOJI,
  • SAGAWA, MORIKAZU,
  • MAKIMOTO, MITSUO
  • 発明者(英語)
  • WADA, KOJI,
  • SAGAWA, MORIKAZU,
  • MAKIMOTO, MITSUO
国際特許分類(IPC)
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