TOP > 外国特許検索 > TRANSMISSION LINE RESONATOR, BANDPASS FILTER USING TRANSMISSION LINE RESONATOR, SPLITTER, BALANCED-TO-UNBALANCED TRANSFORMER, POWER DISTRIBUTOR, UNBALANCED-TO-BALANCED TRANSFORMER, FREQUENCY MIXER, AND BALANCE-TYPE FILTER

TRANSMISSION LINE RESONATOR, BANDPASS FILTER USING TRANSMISSION LINE RESONATOR, SPLITTER, BALANCED-TO-UNBALANCED TRANSFORMER, POWER DISTRIBUTOR, UNBALANCED-TO-BALANCED TRANSFORMER, FREQUENCY MIXER, AND BALANCE-TYPE FILTER コモンズ

外国特許コード F130007159
整理番号 S2011-0373-C0
掲載日 2013年2月8日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2012JP051833
国際公開番号 WO 2012/102385
国際出願日 平成24年1月27日(2012.1.27)
国際公開日 平成24年8月2日(2012.8.2)
優先権データ
  • 特願2011-016812 (2011.1.28) JP
発明の名称 (英語) TRANSMISSION LINE RESONATOR, BANDPASS FILTER USING TRANSMISSION LINE RESONATOR, SPLITTER, BALANCED-TO-UNBALANCED TRANSFORMER, POWER DISTRIBUTOR, UNBALANCED-TO-BALANCED TRANSFORMER, FREQUENCY MIXER, AND BALANCE-TYPE FILTER コモンズ
発明の概要(英語)

The superiority of conventional short-ended stepped-impedance resonators (SIR) with respect to open-ended SIRs has not been recognized. With the development of the latest microwave circuit element fabrication technology such as LTCC technology, stable shorting to ground of a transmission line can be implemented. Therefore, by targeting improvement in the functionality and performance of a half-wavelength SIR having a shorted-to-ground structure at both ends and reexamining this structure, the purpose of the present invention is to provide a short-ended SIR having functionality and performance equal to or surpassing those of an open-ended SIR and to provide a high-frequency circuit using this short-ended SIR. By loading a capacitive element (15) in the center section of a first transmission line (11), a short-ended SIR of the present invention can be made smaller than a conventional open-ended SIR. In addition, by using circuit symmetry, a resonator can be easily excited when either balanced or unbalanced, and, by adopting various coupling patterns such as electric field coupling or magnetic field coupling, a plurality of resonators and external circuits can be coupled.

  • 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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