27-10-2012, 11:21 AM
12.5 GHz Channel Spacing Compact Interleave Filter Using 1.5%-Delta Waveguides
ABSTRACT
We report the first fabrication of a compact lattice-form interleave filter with a channel spacing of 12.5 GHz. The circuit
size was reduced to 1/4 the size of the original filter by using the 1.5%-delta waveguides. We achieved a flat passband and
low crosstalk with a low insertion loss of 2.7 dB.