The version in the Kent Academic Repository may differ from the final published version. Users are advised to check http://kar.kent.ac.uk for the status of the paper. Users should always cite the published version of record.

Trapped Surface wave (TSW) provides a flexible two-dimensional wireless solution when compared to existing wired and free space communications systems. This work aims to provide the theoretical guidance, supported by simulation techniques and experimental verifications, for i) designing the wideband and highly efficient rectangular aperture TSW transducers, and ii) selecting the best reactive surface impedance for high efficiency. Firstly, a method for computing the TSW excitation efficiency is proposed for the first time and it can be applied to different kinds of reactive surface geometries and transducer apertures. Then the relation between the TSW excitation efficiency, surface reactance and aperture height is derived. Then the maximum excitation efficiency, the corresponding optimal surface reactance and aperture height are presented. Further, the relation between the TSW angular coverage and aperture width is determined. These studies show that the aperture height determines mainly the TSW excitation efficiencies while the aperture width controls the TSW angular coverage, hence the two aperture parameters of a transducer can be determined independently. Finally, an experiment setup, based on the provided guidelines, has been built to demonstrate a 52 GHz wide 3dB-transmission-bandwidth for high performance communications systems.

No abstract

No abstract

No abstract