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Characterizing a Tune All Bandstop Filter
In this paper a reconfigurable bandstop filter able to reconfigure central frequency, bandwidth and selectivity for fine tuning applications is presented. The reconfigurable filter topology has four poles and a quasi-elliptic bandstop filter response. The filter is tuned by varactor diodes placed at...
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| creator | Musoll-Anguiano, C. Llamas-Garro, I. Brito-Brito, Z. Pradell, L. Corona-Chavez, A. |
| description | In this paper a reconfigurable bandstop filter able to reconfigure central frequency, bandwidth and selectivity for fine tuning applications is presented. The reconfigurable filter topology has four poles and a quasi-elliptic bandstop filter response. The filter is tuned by varactor diodes placed at different locations on the filter topology. The varactors are voltage controlled in pairs due to filter symmetry for central 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 central frequency, which tunes filter selectivity. The filter has a tuneable fractional bandwidth range from 11.51 to 15.46%, a tuneable central frequency range from 1.346 to 1.420 GHz and a selectivity tuning range from 0.37 to 0.40 dB/MHz. |
| doi_str_mv | 10.1109/IMWS.2009.4814908 |
| format | conference_proceeding |
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| identifier | ISBN: 9781424427420 |
| ispartof | 2009 IEEE MTT-S International Microwave Workshop Series on Signal Integrity and High-Speed Interconnects, 2009, p.55-58 |
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| language | eng |
| recordid | cdi_ieee_primary_4814908 |
| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | bandstop quasi-elliptic filter Bandwidth Centralized control Diodes Filtering theory Filters Frequency reconfigurable filter Topology Tuning varactor diode Varactors Voltage control |
| title | Characterizing a Tune All Bandstop Filter |
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