Multiplexers
RLC Electronics offers multiplexers for commercial, telecommunications, and military applications in two, three, and four channel configurations. Multiplexers are used to select a digital or analog input signal, and then direct that signal into a single line. This means that one device can be subjected to several signals without the need for having several devices for several input signals.
RLC’s multiplexers cover the 10 to 18,000 MHz frequency range. Adjacent passbands may be designed for a contiguous response, impedance matched through the crossover region with theoretical 3 dB power split at the crossover frequency. Alternatively, non-contiguous passbands may be selected with an out-of-band region between adjacent passbands. Multiplexers with individual channel bandwidths less than an octave are implemented with band pass filters multiplexed to a common input junction. Multiplexers with individual channel bandwidths greater than an octave are normally implemented with a cascade of lowpass/high pass diplexers. For passband frequencies below 2 GHz, lumped element designs will often achieve the desired response in the smallest package. At higher frequencies, distributed coaxial structures are employed to achieve the lowest possible loss.