TY - GEN
T1 - Multi-Band Acoustic-Wave-Lumped-Element Resonator-Based Bandstop Filters with Continuously Tunable Stopband Bandwidths
AU - Psychogiou, Dimitra
AU - Simpson, Dakotah J.
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/8/17
Y1 - 2018/8/17
N2 - A new class of multi-band acoustic-wave-Iumped-ele-ment-resonator (AWLR)-based bandstop filters (BSFs) is reported. It is based on N multi-resonant A WLRs-shaped by K AWLRs and 2K inverters-that are connected to an all-pass network and result in K N th order rejection bands. The proposed concept allows the realization of multiple rejection bands with the following characteristics: i) fractional bandwidths (FBWs) larger than the electromechanical coupling coefficient pmb k t 2 of its constituent acoustic-wave resonators, ii) continuously variable and inde-pendently-controlled FBWs, iii) intrinsically-switched stopbands, and iv) an all pass state. For proof-of-concept validation purposes a dual-band prototype was designed, built, and tested. It exhibits two stopbands centered at 418 and 433 MHz that can be continu-ously-tuned in FBW (up to 7.7:1 tuning range) and in number.
AB - A new class of multi-band acoustic-wave-Iumped-ele-ment-resonator (AWLR)-based bandstop filters (BSFs) is reported. It is based on N multi-resonant A WLRs-shaped by K AWLRs and 2K inverters-that are connected to an all-pass network and result in K N th order rejection bands. The proposed concept allows the realization of multiple rejection bands with the following characteristics: i) fractional bandwidths (FBWs) larger than the electromechanical coupling coefficient pmb k t 2 of its constituent acoustic-wave resonators, ii) continuously variable and inde-pendently-controlled FBWs, iii) intrinsically-switched stopbands, and iv) an all pass state. For proof-of-concept validation purposes a dual-band prototype was designed, built, and tested. It exhibits two stopbands centered at 418 and 433 MHz that can be continu-ously-tuned in FBW (up to 7.7:1 tuning range) and in number.
KW - Acoustic-wave (AW) filter
KW - bandstop filter (BPF)
KW - enhancement
KW - high-quality-factor filter
KW - RF/micro-wave filter
KW - surface acoustic-wave (SAW) resonator
UR - https://www.scopus.com/pages/publications/85053045571
U2 - 10.1109/MWSYM.2018.8439844
DO - 10.1109/MWSYM.2018.8439844
M3 - Conference proceeding
AN - SCOPUS:85053045571
SN - 9781538650677
T3 - IEEE MTT-S International Microwave Symposium Digest
SP - 860
EP - 863
BT - Proceedings of the 2018 IEEE/MTT-S International Microwave Symposium, IMS 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 IEEE/MTT-S International Microwave Symposium, IMS 2018
Y2 - 10 June 2018 through 15 June 2018
ER -