SPECTRAL-DOMAIN ANALYSIS OF RADIATING CYLINDRICAL DIELECTRIC RESONATOR FOR WIRELESS COMMUNICATIONS

A novel class of leaky-mode cylindrical dielectric resonators includin g mounting holder and radial-step has been recently proposed as a feed structure for omnidirectional antennas that are suitable for wireless communication systems, In this work, a spectral-domain modeling is de veloped and used for analysis of these composite cylindrical dielectri c resonators considering single and double radiating slots, The dielec tric resonators are bounded between two parallel conducting plates so that leaky-wave propagation takes place under some electrical and geom etrical conditions, Results and discussion are focused on the properti es of low-order leaky TIM-modes. Influences of various structural para meters on resonant frequency and quality factor of leaky dielectric re sonators are presented in detail, A set of experiments are made to ver ify the proposed theoretical approach.