Design of sharp-rejection, compact, and low-cost ultra-wideband bandpass filters using interdigital resonators

Design of ultra-wideband bandpass filter

Design of ultra-wideband bandpass filter using step-impedance four-mode resonator and aperture-enhanced coupled structure

✍ Peng Cai 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 264 KB

## Abstract A novel ultra‐wideband (UWB) bandpass filter (BPF) is proposed and implemented by using a four‐mode resonator, which has four resonant frequencies within the passband of the filter. By enhancing the coupling between the resonator and the input/output feed lines, an UWB BPF with six tran