Photonic bandgap crystal frequency multiplexers and a pulse blanking filter for use therewith

摘要: Frequency multiplexers that incorporate either a power divider network or coupling cavity in conjunction with photonic bandgap filters. The frequency comprise signal input and plurality of outputs. In first embodiment the multiplexer, 1-to-N is coupled to input, predetermined number filters are between outputs driven by network. Each filter has an bandpass characteristic such cover total bandwidth. second formed spatial locations tailor propagation properties so corresponding propagating modes established linking different bands output. comprises wave launching antenna, waveguide-like cavity, receiving crystal disposed dielectric substrate having upper lower metal boundaries define lengths members therein, at least one switch interconnecting pairs substrate.