Fully adaptable band‐stop filter using varactor diodes

dc.creatorIGNACIO LLAMAS GARRO
dc.creatorZABDIEL BRITO BRITO
dc.creatorLluis Pradell
dc.creatorALONSO CORONA CHAVEZ
dc.date2010
dc.date.accessioned2022-10-12T20:14:56Z
dc.date.available2022-10-12T20:14:56Z
dc.identifierhttp://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1451
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4130602
dc.descriptionIn this article a reconfigurable band-stop filter able to reconfigure center frequency, bandwidth, and selectivity for fine tuning applications is demonstrated, device topology discussion and implementation details are given, and followed by discussion on simulations and measurements. The reconfigurable filter topology has four poles and a quasi-elliptic band-stop filter response. The device is tuned by varactor diodes placed at different locations on the filter; varactors are voltage controlled in pairs due to filter symmetry for center frequency and bandwidth control. An additional varactor is placed on a crossing line to move a pair of transmission zeros, closer or farther to the filter center frequency, which tunes filter selectivity. Simulations show a tuneable center frequency range from 1.42 to 1.48 GHz, a tuneable fractional bandwidth range from 9.46 to 12.96%, and a tuneable selectivity range from 0.53 to 0.65 dB/MHz. Measurements show a tuneable center frequency range from 1.37 to 1.43 GHz, a tuneable fractional bandwidth range from 11.31 to 15.93%, and a selectivity tuning range from 0.37 to 0.40 dB/MHz. Simulations and measurements are in good agreement.
dc.formatapplication/pdf
dc.languageeng
dc.publisherWiley Periodicals, Inc.
dc.relationcitation:Musoll-Anguiano, C., et al., (2010). Fully adaptable band‐stop filter using varactor diodes, Microwave and Optical Technology Letters, Vol. 52, (3): 554–558
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subjectinfo:eu-repo/classification/Continuously tuned filter/Continuously tuned filter
dc.subjectinfo:eu-repo/classification/Band-stop quasi-elliptic filter/Band-stop quasi-elliptic filter
dc.subjectinfo:eu-repo/classification/Varactor diode/Varactor diode
dc.subjectinfo:eu-repo/classification/Reconfigurable filter/Reconfigurable filter
dc.subjectinfo:eu-repo/classification/Transmission zeros/Transmission zeros
dc.subjectinfo:eu-repo/classification/cti/1
dc.subjectinfo:eu-repo/classification/cti/22
dc.subjectinfo:eu-repo/classification/cti/2203
dc.subjectinfo:eu-repo/classification/cti/2203
dc.titleFully adaptable band‐stop filter using varactor diodes
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/acceptedVersion
dc.audiencestudents
dc.audienceresearchers
dc.audiencegeneralPublic


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