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Novel N-band tunable resonator based on N-order dual-behavior resonator and tunable capacitors

Published online by Cambridge University Press:  16 October 2014

Erwan Fourn ,
Cedric Quendo  and
Eric Rius
Erwan Fourn*
Affiliation:
IETR, INSA de Rennes, 20, Avenue des Buttes de Coesmes, CS70839, 35708 Rennes Cedex 7, France. Phone: +33 223 238 370
Cedric Quendo
Affiliation:
Lab-STICC, Université de Bretagne Occidentale, 6, Avenue Victor Le Gorgeu, CS93837, 29238 Brest Cedex 3, France
Eric Rius
Affiliation:
Lab-STICC, Université de Bretagne Occidentale, 6, Avenue Victor Le Gorgeu, CS93837, 29238 Brest Cedex 3, France
*
Corresponding author: E. Fourn Email: [email protected]
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Abstract

An N-band resonator, particularly well-suited for reconfigurability, is presented in this paper together with its synthesis. The resonator is based on the association of an N-band dual-behavior resonator and tunable capacitors. Its topology consists of a parallel association of N + 1 different bandstop structures, each one composed of a stub terminated by a capacitor. N pass bands, separated from each other by a transmission zero, are then obtained. As each bandstop structure independently controls one transmission zero, the use of variable capacitors allows each of them to be tuned independently and then to reconfigure the resonator in terms of transmission zeros and resonant frequencies. After the presentation of the general synthesis, this principle is validated by the realization of a tri-band resonator in microstrip technology.

Keywords

FilterPassive components and circuitsReconfigurable multi-band resonator
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 8 , Issue 1 , February 2016 , pp. 15 - 23
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2014 

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References

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