Improved and compact 0.7 GHz tune-all bandpass filter |
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Authors: | Pistono E Duvillaret L Duchamp J-M Vilcot A Ferrari P |
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Affiliation: | LAHC, Univ. de Savoie; |
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Abstract: | A compact tune-all bandpass filter is presented. This electronically tuned filter is based on series-coupled slow-wave resonators. It allows wide simultaneous and continuous tunings of centre frequency (+/-15% around 0.7 GHz) and bandwidth (from 50 to 100 MHz) with insertion loss IL<5.4 dB and return loss RL>11 dB. This two-pole bandpass filter exhibits also a very small surface of only 7.3times10-3 lambda0 2 and a -20 dB stop-band that extends up to 10 GHz |
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