Radio frequency (RF) transmitters; radio frequency millimeter-wave and microwave assemblies, namely, repeaters, signal tuners, frequency converters, radio transceivers, and switch filters; millimeter wave radio frequency products, namely, up/down converters, waveguide filters, millimeter wave amplifiers, millimeter wave detectors and multipliers, millimeter wave transceivers and millimeter wave channelizers; microwave and millimeter wave wireless backhaul systems comprising interface units an...