@inbook{c22768fb11d7488aa58d362c635995d1,
title = "Tunable Multiband Bandpass-to-Bandstop RF Filters",
abstract = "This paper reports on a new class of multiband band-pass-to-bandstop (BP-to-BS) tunable RF filters. The proposed fi-ter concept allows the simultaneous realization of multiband bandpass-and bandstop-type transfer functions that can be independently reconfigured in frequency and in number-through band merging-. Switching between the multiband bandpass-filter (BPF) and bandstop-filter (BSF) modes is achieved by changing the coupling path between the source and the load. In both modes, band reconfigurability is obtained by only tuning the resonant frequencies of the filter's resonators. The proposed spectrally-adaptive multiband BP-to-BS filter concept is presented by means of: i) coupled-resonator synthesis through its coupling-matrix representation and of: ii) an experimental four-resonator microstrip fil- ter prototype (1-to-2 bands in the BPF mode and 1-to-4 bands in the BSF mode) that was designed and tested in the frequency range 0.9-1.6 GHz for proof-of-concept demonstration purposes.",
keywords = "Bandpass-to-bandstop filter, frequency-tunable filter, microstrip filter, multiband filter, reconfigurable filter, RF filter, tunable filter",
author = "Simpson, \{Dakotah J.\} and Roberto Gomez-Garcia and Dimitra Psychogiou",
note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 2018 IEEE/MTT-S International Microwave Symposium, IMS 2018 ; Conference date: 10-06-2018 Through 15-06-2018",
year = "2018",
month = aug,
day = "17",
doi = "10.1109/MWSYM.2018.8439841",
language = "English",
isbn = "9781538650677",
series = "IEEE MTT-S International Microwave Symposium Digest",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1363--1366",
booktitle = "Proceedings of the 2018 IEEE/MTT-S International Microwave Symposium, IMS 2018",
address = "United States",
}