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This paper presents effect of different waveguide modes on the design and construction of a dielectric resonator antenna (DRA). The proposed design is combination of cylindrical antenna cavity and a Cylindrical Dielectric Resonator substance; hence this radiating structure is called as cylindrical dielectric resonator antenna (CDRA). Synthesis and analysis of CDRA at 2.4 GHz operating frequency has been done in MATLAB program to effectively observe the Q-factor and bandwidth of CDRA. Radiator design parameters has been calculated for different waveguide modes such as TE, TM, HE, EH. DRA, a volumetric source improves the radiation power factor of the radiating slot. KeywordsCylindrical Dielectric Resonator Antenna (CSDRA), TE, TM, HE, EH, Q-factor, Bandwidth, narrowband, wideband

Analysis of Different Waveguide Modes of a Cylindrical Dielectric Resonator Antenna for Wireless Communications