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A design method of compact multi-stage bandpass filters (BPFs) using /spl lambda//4 stepped-impedance resonators (SIRs) which are arranged in line on coplanar waveguide (CPW) is presented. Two- and six-stage Chebyshev CPW BPF designs with J- and K-inverters are demonstrated by using electromagnetic field simulators. Overall transmission and reflection characteristics of the BPFs are calculated based...
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