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Compact SIW dual‐band bandpass filter using novel dual‐resonance quasi‐SIW‐transmission‐line‐structure resonators
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A compact substrate integrated waveguide (SIW) dual‐band bandpass filter (DBSF) using novel quasi‐SIW‐transmission‐line‐structure resonators is proposed in this study. This dual‐resonance SIW resonator which works in TE100 mode and TE201 mode can be evolved from a conventional SIW‐transmission line or a two‐conductor transmission line. Multiple signals transmission paths bring extra transmission zeros (TZs) and improve the selectivity and out‐band rejection of the DBSF. This filter works at 4.75 GHz/4.82 GHz, 5.38 GHz/5.51 GHz with 3 dB fractional bandwidths of 3.8 and 3.9%, respectively, and has six TZs. The measured results agree with the simulation results well.
Title: Compact SIW dual‐band bandpass filter using novel dual‐resonance quasi‐SIW‐transmission‐line‐structure resonators
Description:
A compact substrate integrated waveguide (SIW) dual‐band bandpass filter (DBSF) using novel quasi‐SIW‐transmission‐line‐structure resonators is proposed in this study.
This dual‐resonance SIW resonator which works in TE100 mode and TE201 mode can be evolved from a conventional SIW‐transmission line or a two‐conductor transmission line.
Multiple signals transmission paths bring extra transmission zeros (TZs) and improve the selectivity and out‐band rejection of the DBSF.
This filter works at 4.
75 GHz/4.
82 GHz, 5.
38 GHz/5.
51 GHz with 3 dB fractional bandwidths of 3.
8 and 3.
9%, respectively, and has six TZs.
The measured results agree with the simulation results well.
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