Proceedings ArticleDOI
Bandwidth and central frequency control on tunable bandpass filter by using MEMS cantilevers
Erwan Fourn,Cédric Quendo,Eric Rius,Arnaud Pothier,Pierre Blondy,Corinne Champeaux,Jean-Christophe Orlianges,Alain Catherinot,Gérard Tanné,C. Person,Fabrice Huret +10 more
- Vol. 1, pp 523-526
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TLDR
In this paper, a tunable bandpass filter topology is presented, which is based on dual behavior resonators (DBRs), each of which consists of low and high-frequency open-ended stubs.Abstract:
This paper deals with a tunable bandpass filter topology which controls independently and simultaneously both the central frequency and bandwidth. This tunable filter results from the association of MEMS cantilevers, used as variable capacitors, with an original passive topology. The latter is based on dual behavior resonators (DBRs), each of them is constituted of low- and high-frequency open-ended stubs. The associated filter electrical response is characterized by tunable frequency transmission zeros. A millimeter bandpass filter with central frequency and relative bandwidth tunability of about 10 and 75%, respectively, is presented.read more
Citations
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Journal ArticleDOI
High- $Q$ Fully Reconfigurable Tunable Bandpass Filters
TL;DR: In this article, a low-Q varactors are incorporated as part of the inter-resonator and external coupling mechanisms without degrading the overall high Q of the original filter.
Journal ArticleDOI
Low-loss 2-bit tunable bandpass filters using MEMS DC contact switches
Arnaud Pothier,Jean-Christophe Orlianges,G. Zheng,Corinne Champeaux,Alain Catherinot,Dominique Cros,Pierre Blondy,John Papapolymerou +7 more
TL;DR: In this article, the authors presented the development of tunable filters using ohmic contact microelectromechanical system switches, which is very well suited for the fabrication of low-loss high tuning-range microwave filters.
Journal ArticleDOI
Putting the Radio in “Software-Defined Radio”: Hardware Developments for Adaptable RF Systems
TL;DR: The prospects for and the state of the art of adaptable RF hardware are reviewed, focusing primarily on the traditional frequency planning bottleneck, the filtering stages, and a novel synthesis approach is highlighted.
Journal ArticleDOI
Electronically Reconfigurable Dual-ModeMicrostrip Open-Loop Resonator Filter
Young-Hoon Chun,Jia-Sheng Hong +1 more
TL;DR: In this paper, a new type of reconfigurable asymmetric frequency response bandpass filter using dual-mode open-loop resonator is investigated, where the even and odd modes do not couple.
Journal ArticleDOI
Electronically Reconfigurable Microwave Bandpass Filter
Peng Wen Wong,Ian Hunter +1 more
TL;DR: In this article, a reconfigurable bandpass filter based on parallel-coupled switched delay line approach is presented, which allows both center frequency and passband bandwidth to be reconfigured electronically.
References
More filters
Journal ArticleDOI
RF MEMS switches and switch circuits
TL;DR: In this paper, the authors concentrate on electrostatic switches at 0.1-100 GHz with high reliability (100 million to 10 billion cycles) and wafer-scale manufacturing techniques.
Journal ArticleDOI
A varactor-tuned RF filter
A.R. Brown,Gabriel M. Rebeiz +1 more
TL;DR: In this paper, an electronically tunable filter at 1 GHz was presented, which has a 60% tuning range from 700 MHz to 1.33 GHz with a low insertion loss.
Journal ArticleDOI
Narrow bandpass filters using dual-behavior resonators
TL;DR: In this paper, the authors proposed a new concept of narrow bandpass filters leading to perfectly controlled electrical responses within both the required operating bandwidth and adjacent undesired bands, and a specific topology is considered for such a "global synthesis": in comparison with conventional filter performances, it provides significant improvements in terms of rejection control.
Journal ArticleDOI
MEMS switchable interdigital coplanar filter
Erwan Fourn,Arnaud Pothier,Corinne Champeaux,Pascal Tristant,Alain Catherinot,Pierre Blondy,Gérard Tanné,Eric Rius,Christian Person,Fabrice Huret +9 more
TL;DR: In this paper, a tunable interdigital coplanar filter with tapped-line feedings is presented, where capacitors are used as a high contrast capacitive switch between a quarter-wavelength resonator and an open-ended stub to perform the frequency shift.