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Characteristic modes (CMs) are current modes obtained numerically for arbitrarily shaped conducting or dielectric bodies. These modes present really appealing properties, as they not only make possible a modal analysis of conducting/dielectric objects, but they also provide physical interpretation of the radiation phenomena and the fundamental working principle of open radiating structures. In this...
A novel method to design a coplanar-waveguide-fed slot-coupled rectangular dielectric resonator antenna is presented in this paper. This study permits to optimize the radiation bandwidth in the same analysis process for both the dielectric and the slot. The complete antenna is designed for low-temperature co-fired ceramic fabrication. The goals are to fabricate all the antenna for low permittivity...
In this paper Complex Natural Resonances of an infinite dielectric circular cylinder based on the PMCHWT formulation are presented. The relation between them and the Characteristic Mode resonances are explained. In addition, the reasons for different characteristic modes using different integral equations are explained. A connection between the resonances of series solution and integral formulations...
The theory of characteristic modes is being widely used for designing antennas (Y. Chang, and R. F. Harrington, 1977, Antennas and Propagation, IEEE Transactions on, 25(6), 789–795). Regarding to the design of dielectric objects there are still unknown aspects in the interpretation of their solutions. Previous works about characteristic Modes are published for conducting bodies and dielectric Bodies,...
In this study, the theory of characteristic modes is used as the first time for the analysis and design of a wideband rectangular dielectric resonator antenna. The rectangular dieletric resonator antenna was excited by a microstrip feeder with a rectangular coupled slot. The antenna is designed for low-temperature co-fired ceramic fabrication, with Ferro A6-M material and for ISM-band at 60GHz. The...
The problem considered in this paper concerns with the study of the theory of characteristic modes applied to a conducting sphere. For this canonical case modes are obtained analytically. This work help us to understand better how the theory of characteristic modes works on this structure to reveal interior (cavity) and exterior (radiating) resonances. This knowledge will be used in future work to...
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