IEEE Microwave and Wireless Components Letters · 2018 · 49 citations · 9 references
EngineeringDigital DesignMicrowave EngineeringResponsive DesignZero-based BudgetingAnalog FiltersMicrowave FiltersMicrowave Integrated CircuitsMicrowave Network AnalysisMicrowave System DesignBand-pass FilteringBand-pass FiltersBandpass FilteringBandpass FiltersBandwidthFilter DesignSelectivitySignal Propagation
In this letter, a compact dual-band bandpass filter (BPF) based on the transversal signal interaction concepts is presented. The center frequencies of dual-band BPF are centered at 3.8 and 4.8 GHz with 3-dB fraction bandwidths of 11.3% and 10.7%, respectively. Transversal filtering structure is introduced in the proposed dual-band BPF, which provides two signal propagation paths from input to output. Thus, a dozen of transmission zeros are yielded to obtain wide stopband suppression ranging from 5.2 to 16 GHz. To validate the design scheme, a dual-band BPF with high selectivity, compact size, independently controllable bandwidth, and wide stopband suppression is fabricated and measured.
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