Embodiments of the present disclosure may relate to a transmitter to transmit a radio frequency (RF) signal to a receiver via a dielectric waveguide where the transmitter includes a plurality of mixers to generate modulated RF signals and a combiner to combine the modulated RF signals. Embodiments may also include a receiver to receive, from a dielectric waveguide, a RF signal where the receiver includes a splitter to split the RF signal into a plurality of signal paths, a plurality of filters, and a plurality of demodulators. Embodiments may also include a dielectric waveguide communication apparatus that may include the transmitter and the receiver. Other embodiments may be described and/or claimed.