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A new microstrip wideband filtering power divider (FPD) is presented. By selecting proper coupling topology between a λ/4 short-ended microstrip transmission line and two multimode resonators, a wideband FPD is initially constructed. Meanwhile, by wisely introducing an isolation resistor between the resonators, good port-to-port isolation of the FPD is obtained. For validation, one prototype wideband...
A compact and high frequency selectivity two-stage microstrip bandpass filter is designed and experimentally demonstrated. Such a kind of filter is composed of two pairs of twist-modified asymmetric split-ring resonators (SRRs) to achieve three transmission poles within the passband and four transmission zeros at low and high rejection bands. Sharply out-of-band reductions contributing to the high...
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