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FILTER CHARACTERISTICS REGULATING METHOD, FILTER CHARACTERISTICS REGULATOR, FILTER, AND COMMUNICATION APPARATUS

外国特許コード F110005922
整理番号 QP040089-PC
掲載日 2011年11月28日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2006JP304155
国際公開番号 WO 2006/126321
国際出願日 平成18年3月3日(2006.3.3)
国際公開日 平成18年11月30日(2006.11.30)
発明の名称 (英語) FILTER CHARACTERISTICS REGULATING METHOD, FILTER CHARACTERISTICS REGULATOR, FILTER, AND COMMUNICATION APPARATUS
発明の概要(英語) A high-performance small-size filter can be obtained by altering the electric length between a branch point and each filter when an attenuation pole is generated. A coplanar filter (3) comprises a first band-pass filter (5) having characteristics of central frequency f1, a second band-pass filter (7) having characteristics of central frequency f2 different from the central frequency f1, a transmission line (9) connecting the first band-pass filter (5) and the second band-pass filter (7), and a branch point (11) formed in the transmission line (9). The filter is designed so that an attenuation pole is generated in at least one of the first band-pass filter (5) and the second band-pass filter (7), and the frequency range generating an attenuation pole is regulated by adjusting the forming position of the branch point (11).
  • 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
  • Kyushu University, National University Corporation
  • Fukuoka Industry, Science & Technology Foundation
  • 発明者(英語)
  • YOSHIDA, Keiji
  • KANAYA, Haruichi
国際特許分類(IPC)
指定国 AE,AG,AL,AM,AT,AU,AZ,BA,BB,BG,BR,BW,BY,BZ,CA,CH,CN,CO,CR,CU,CZ,DE,DK,DM,DZ,EC,EE,EG,ES,FI,GB,GD,GE,GH,GM,HR,HU,ID,IL,IN,IS,JP,KE,KG,KM,KN,KP,KR,KZ,LC,LK,LR,LS,LT,LU,LV,LY,MA,MD,MG,MK,MN,MW,MX,MZ,NA,NG,NI,NO,NZ,OM,PG,PH,PL,PT,RO,RU,SC,SD,SE,SG,SK,SL,SM,SY,TJ,TM,TN,TR,TT,TZ,UA,UG,US,UZ,VC,VN,YU,ZA,ZM,ZW,EP(AT,BE,BG,CH,CY,CZ,DE,DK,EE,ES,FI,FR,GB,GR,HU,IE,IS,IT,LT,LU,LV,MC,NL,PL,PT,RO,SE,SI,SK,TR),OA(BF,BJ,CF,CG,CI,CM,GA,GN,GQ,GW,ML,MR,NE,SN,TD,TG),AP(BW,GH,GM,KE,LS,MW,MZ,NA,SD,SL,SZ,TZ,UG,ZM,ZW),EA(AM,AZ,BY,KG,KZ,MD,RU,TJ,TM)
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