A Millimeter-wave Communication System Over A Cable

In this paper, a cable-based millimeter-wave communication system is proposed to overcome the large propagation loss on 60 GHz. The millimeter-wave surface-wave is excited by the coaxial cable, and propagates over the power lines in low-loss. A dielectric convertor is proposed to convert the TEM mode in coaxial cable into surface-wave mode in cable line. The surface-wave mode of Goubau line in dielectric cladding is studied, and the type of transmission loss of surface wave is analyzed. Finally, a millimeter wave surface-wave power line transmission system is realized with low loss less than 1.5 dB per 100 mm in 60 GHz. It preliminarily verifies the potential of using a cable to transmit millimeter wave in low-loss.