Microstrip bandpass filters with attenuation poles due to dual-mode behaviour


This paper proposes microstrip bandpass filters consisting of a half-wavelength resonator and quarter-wavelength stubs set at the center of the resonator. The proposed filter easily and compactly produces the bandpass characteristic due to the dual-mode operation and also bandstop one having attenuation poles in both outside regions of the passband. The… (More)


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