Abstract
We present an ultra-wide band bandpass filter at 60 GHz by utilizing transmission-line metamaterial comprises an open and a short resonator. The cornerstone of this ultra-wide-band bandpass filter is founded on the coupling between the short and open resonators at their resonant states. Our simulation result manifests that the coupled short and open resonators provide a passband by combining a left-handed region and a right-handed region, and thus achieve a bandwidth of 6.2 GHz between 57.4 GHz and 63.6 GHz. Further, the stop band is widely extended down to DC and up to 109.4 GHz. Such characteristic is applicable for the 60 GHz wireless communication. © 2010 SPIE.