@inbook{3d30529e42be429f942b20f9b08ed1e6,
title = "Reconfigurable single/multi-band planar impedance transformers with incorporated bandpass filtering functionality",
abstract = "A new class of frequency-agile single/multi-band planar real-impedance transformers that feature bandpass filtering capabilities for their operative bands are proposed. They are based on the incorporation of single/multi-band quasi-bandpass filtering sections into a wide-band impedance transformer whose operational range covers the intended frequency-tuning range of the individually-controlled passbands. Thus, by controlling the natural frequencies of the resonators in these sections through variable capacitors, a tunable single/multi-band impedance-transformation/bandpass-filtering action is obtained. The operational foundations of this reconfigurable dual-function device, which can be applied to designs with an arbitrary number of bands, are expounded. Furthermore, as experimental demonstration, a three-band microstrip prototype with tunable bands throughout the range 1.2-1.8 GHz is developed and tested.",
keywords = "Bandpass filter, impedance transformer, matching network, microstrip circuit, multi-band circuit, multi-function circuit, reconfigurable circuit, tunable circuit, wide-band circuit",
author = "Roberto Gomez-Garcia and Dimitra Psychogiou and Dimitrios Peroulis",
note = "Publisher Copyright: {\textcopyright} 2016 IEEE.; 2016 IEEE MTT-S International Microwave Symposium, IMS 2016 ; Conference date: 22-05-2016 Through 27-05-2016",
year = "2016",
month = aug,
day = "9",
doi = "10.1109/MWSYM.2016.7540377",
language = "English",
series = "IEEE MTT-S International Microwave Symposium Digest",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2016 IEEE MTT-S International Microwave Symposium, IMS 2016",
address = "United States",
}