TY - CHAP
T1 - Multi-band reflectionless filtering impedance transformers
AU - Gomez-Garcia, Roberto
AU - Munoz-Ferreras, Jose Maria
AU - Psychogiou, Dimitra
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/6/29
Y1 - 2018/6/29
N2 - A type of double-functionality filtering impedance transformer with multi-band and input-reflectionless capabilities is presented. It exploits a multi-passband filtering/impedance-transformation channel loaded with a complementary resistively-terminated multi-bandstop branch at its input node that dissipates the input-signal energy in the stopband regions of the former. This multi-band/multi-operational circuit approach could result in insertion-loss and circuit-size advantages when employed in complete RF front-end chains by relaxing the need for isolators or attenuators for inter-block matching. A coupling-matrix-based formulation for its design and theoretical examples of first-order dual-band and second-order triple-band realizations are provided. Furthermore, for experimental-demonstration purposes, a 1.9/2.1-GHz dual-band microstrip prototype is built and tested.
AB - A type of double-functionality filtering impedance transformer with multi-band and input-reflectionless capabilities is presented. It exploits a multi-passband filtering/impedance-transformation channel loaded with a complementary resistively-terminated multi-bandstop branch at its input node that dissipates the input-signal energy in the stopband regions of the former. This multi-band/multi-operational circuit approach could result in insertion-loss and circuit-size advantages when employed in complete RF front-end chains by relaxing the need for isolators or attenuators for inter-block matching. A coupling-matrix-based formulation for its design and theoretical examples of first-order dual-band and second-order triple-band realizations are provided. Furthermore, for experimental-demonstration purposes, a 1.9/2.1-GHz dual-band microstrip prototype is built and tested.
UR - https://www.scopus.com/pages/publications/85050377291
U2 - 10.1109/IEEE-IWS.2018.8400798
DO - 10.1109/IEEE-IWS.2018.8400798
M3 - Chapter
AN - SCOPUS:85050377291
T3 - 2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings
SP - 1
EP - 4
BT - 2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 IEEE MTT-S International Wireless Symposium, IWS 2018
Y2 - 6 May 2018 through 9 May 2018
ER -