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Progress In Electromagnetics Research Letters
ISSN: 1937-6480
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DUAL-BAND BANDPASS FILTER USING COMPOSITE COUPLING STRUCTURE FOR CPW/MICROSTRIP

By J. Wang and P. Gao

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Abstract:
By using a composite coupling structure for coplanar waveguide (CPW)/microstrip, a new dual-band bandpass filter (DBBPF) stacking inverted Y-shaped CPW resonators and rectangular ring resonators is proposed. Two resonant frequency bands are simultaneously excited by the CPW feed line, However, it can be convenient to tune individually. Several transmission zeros are realized to improve the selectivity of the filter and achieve wide stopband rejection. Good agreement between simulated and measured results demonstrates the validity of this DBBPF.

Citation:
J. Wang and P. Gao, "Dual-Band Bandpass Filter Using Composite Coupling Structure for CPW/Microstrip," Progress In Electromagnetics Research Letters, Vol. 58, 53-57, 2016.
doi:10.2528/PIERL15111901

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