TY - CHAP
T1 - UHF-band bandpass filters with fully-reconfigurable transfer function
AU - Simpson, Dakotah J.
AU - Gómez-García, Roberto
AU - Psychogiou, Dimitra
N1 - Publisher Copyright:
© 2018 Applied Computational Electromagnetics Society (ACES).
PY - 2018/5/23
Y1 - 2018/5/23
N2 - This paper presents a lumped-element bandpass filter (BPF) with multiple levels of transfer-function tunability including bandwidth (BW), center frequency, and intrinsic RF switching. The reported filter is based on a cascaded-resonator structure that exhibits three poles and two transmission zeros (TZs). Transfer-function reconfigurability is achieved by only tuning the filter's resonators via variable capacitors which results in less in-band insertion-loss (IL) variation and better linearity than in conventional filter schemes in which coupling controllability is required. For practical-validation purposes, a lumped-element BPF prototype was designed, built, and measured in the UHF band. It exhibits center-frequency tunability of 1.63:1, BW tunability of 7.3:1 and minimum in-band IL in the range 1.26-3.96 dB.
AB - This paper presents a lumped-element bandpass filter (BPF) with multiple levels of transfer-function tunability including bandwidth (BW), center frequency, and intrinsic RF switching. The reported filter is based on a cascaded-resonator structure that exhibits three poles and two transmission zeros (TZs). Transfer-function reconfigurability is achieved by only tuning the filter's resonators via variable capacitors which results in less in-band insertion-loss (IL) variation and better linearity than in conventional filter schemes in which coupling controllability is required. For practical-validation purposes, a lumped-element BPF prototype was designed, built, and measured in the UHF band. It exhibits center-frequency tunability of 1.63:1, BW tunability of 7.3:1 and minimum in-band IL in the range 1.26-3.96 dB.
KW - Bandpass filter (EPF)
KW - lumped-element filter
KW - reconfigurable filter
KW - tunable filter
UR - https://www.scopus.com/pages/publications/85048347055
U2 - 10.23919/ROPACES.2018.8364299
DO - 10.23919/ROPACES.2018.8364299
M3 - Chapter
AN - SCOPUS:85048347055
T3 - 2018 International Applied Computational Electromagnetics Society Symposium in Denver, ACES-Denver 2018
BT - 2018 International Applied Computational Electromagnetics Society Symposium in Denver, ACES-Denver 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 International Applied Computational Electromagnetics Society Symposium in Denver, ACES-Denver 2018
Y2 - 25 March 2018 through 29 March 2018
ER -