Marki Microwave RF/microwave surface mount multiplexers route signals by frequency into multiple frequency bands, offering broad coverage, low insertion loss, high out-of-band rejection, and strong channel-to-channel isolation. Their resonance-free response makes them well-suited for channelized receivers in EW and SIGINT systems, satellite transponder payloads, and frequency-division multiplexing in wideband signal chains, replacing arrays of discrete filters and combiners in a single integrated solution.