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A compact ultra-wideband (UWB) bandpass filter (BPF) based on transversal signal-interaction concepts is proposed in this letter. Two transmission paths with a wideband double-sided parallel-strip line (DSPSL) 180° swap and a 3λ/4 transmission line are used to transmit signal from Port 1 to Port 2. Two λ/4 shorted lines are introduced to improve the passband transmission characteristic. Two transmission...
A compact differential ultra-wideband (UWB) bandpass filter with high selectivity based on transversal filter concepts is proposed in this paper. Two transmission zeros and good harmonic suppression can be achieved for the differential mode, due to the two transmission paths with different lengths for input/output ports. Four quarter-wavelength shorted lines are added to improve the passband transmission...
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