BROAD BAND-STOP FILTER USING FREQUENCY SELECTIVE SURFACES IN UNIPLANAR MICROWAVE TRANSMISSION LINE

Jae-Young Kim, Jung Han Choi, Chang Won Jung
2012 Progress In Electromagnetics Research Letters  
We present a band-stop filter (BSF) by using a periodic structure property of frequency selective surfaces (FSSs) embedded in a microstrip transmission line. The proposed BSF is designed with FSS unit cells modifying the cross-loop slots. The center frequency (f o ) of the BSF is 6.6 GHz, and the 3-dB bandwidth varies by the number of cascading unit cells. The BSF is interpreted with an equivalent circuit model and a dispersion diagram, and exhibits uniplanar geometry, low return loss, simple
more » ... turn loss, simple fabrication, smaller size, and wide bandwidth.
doi:10.2528/pierl12022705 fatcat:wlf4uqcgjjhufh7lsim7ghrzue