Compact and miniaturized wideband bandpass filter based on substrate integrated waveguide and microstrip line
Haihong Liu,
Lingling Yang,
Bin Cai
et al.
Abstract:In this work, we present a simple design of a compact and miniaturized wideband bandpass filter (BPF) based on substrate integrated waveguide (SIW) and microstrip line. Through the order extension, the filtering effect and the order of the Chebyshev response of the designed BPF can be indirectly controlled by preserving square notches (SNs) on the SIW. By introducing one or two SNs in the SIW structure, the resonance frequencies of different modes can be controlled, thus achieving dual- and tri-mode BPFs with … Show more
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