ANALYSIS OF A CYLINDRICAL WAVE GUIDE CONVERTER FOR CIRCULAR POLARIZATION

Abstract

The circularly polarized wave have gained popularity due to their use as the principal propagation mode in satellite communications. To realize the multiplexing of the transmitting system in satellite communications. It is necessary to supply the waves instantly to the devices. Therefore, to know the transient characteristics of the devices, time domain analysis is important. The transient charactertistics of two types of converters to generate a circularly polarized wave from a lineraly polarized one has been analyzed. The cutoff wave lengths are obtained from the frequency response by applying the fourier transform. The phase shift constants and guide wave lengths are obtained by the spatial and time variation of the electric field distribution. The whole distribution of fields can be to provide detailed information on the field properties, such as the local field concentration. The process of generating either a circularly or an elliptical polarized wave from a linearly polarized wave is shown by time domain analysis.