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2011-06-06

An Artificial Neural Network Approach for the Harmonic Design of Annular Ring Dielectric Resonator Antennas

By Leonardo Lucci, Giuseppe Pelosi, and Stefano Selleri
Progress In Electromagnetics Research C, Vol. 22, 35-45, 2011
doi:10.2528/PIERC11042205

Abstract

The design and optimization of an annular ring dielectric resonator antenna (DRA) operating in the C frequency band is addressed. The DRA is intended to be used as the radiating element of a transmitting array of active integrated antennas, its input impedance must exhibit a proper resistive load at the fundamental resonance frequency, as well as a dominant reactive behavior, either inductive or capacitive, at higher harmonics. The configuration here proposed is a slot-coupled annular DRA where harmonic tuning is performed by resorting to a proper shape factor. The design procedure is performed by exploiting artificial neural networks, to find the resonator geometry starting form the desired resonance frequency, and a finite elements based numerical tool for the electromagnetic characterization of the antenna. Samples of simulation results are shown to demonstrate the capabilities of the proposed slot-based harmonic tuning technique for ring DRAs.

Citation


Leonardo Lucci, Giuseppe Pelosi, and Stefano Selleri, "An Artificial Neural Network Approach for the Harmonic Design of Annular Ring Dielectric Resonator Antennas," Progress In Electromagnetics Research C, Vol. 22, 35-45, 2011.
doi:10.2528/PIERC11042205
http://www.jpier.org/PIERC/pier.php?paper=11042205

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