02107oam 2200457zu 450 991013962240332120241212215827.097816128411201612841120(CKB)2550000000042201(SSID)ssj0000669373(PQKBManifestationID)12244636(PQKBTitleCode)TC0000669373(PQKBWorkID)10709316(PQKB)10974393(NjHacI)992550000000042201(EXLCZ)99255000000004220120160829d2011 uy engur|||||||||||txtccr2011 Joint conference of the IEEE International Frequency Control and the European Frequency and Time Forum[Place of publication not identified]IEEE20111 online resource illustrationsBibliographic Level Mode of Issuance: Monograph9781612841113 1612841112 This paper discusses possibilities of tunable radio frequency (RF) surface and bulk acoustic wave (SAW/BAW) filters. First, configuration of RF front-end in current wireless communication systems is surveyed, and research trends of the flexible RF front-end and software defined radio (SDR) are discussed. Second, various RF tunable filters are introduced, and we discuss how high performances are expected by the use of tunable RF SAW/BAW filters provided that above mentioned key technologies are developed. Finally, we explain what kinds of research subjects are going on in our projects for realization of the flexible RF front-end for the SDR.Frequency standardsCongressesMicroelectromechanical systemsCongressesFrequency standardsMicroelectromechanical systems530.8IEEE StaffPQKBPROCEEDING99101396224033212011 Joint conference of the IEEE International Frequency Control and the European Frequency and Time Forum2509165UNINA