Abstract

A compact microstrip dual-band bandpass filter with good frequency selectivity was proposed. The proposed dual-band bandpass filter is configured with two dual-mode resonator and skew-symmetrically coupled capacitively input/output coupling. By using these input/output coupling structure, extra transmission zeros can be generated. The dual-band bandpass filter is designed for 2.4/5.2 GHz WLAN. Experimental measurements are also presented for the validation of the theory. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1823–1825, 2013

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