CIRCULAR CYLINDRICAL DIELECTRIC- COATED METAL ROD EXCITED IN THE SYMMETRIC TM01 MODE. PART I. SURFACE - WAVE PROPAGATION CHARACTERISTICS.

Abstract

The electromagnetic wave propogation characteristics of a circular cylindrical metal rod of finite conductivity coated with a lossy dielectric have been investigated.By applying the proper boundary conditions, the characteristic equation has been derived. This equation has been solved and the propagation characteristics like the phase constant, the attenuation constant,  the phase velocity. the guide wavelength, the characteristic impedance, and the surface resistance have been determined and their variation with the different parameters have been studied in detail. The power carried by the surface wave and also the power handling capacity have been studied. Experimental work to verify some of the theoretical results have been reported.