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Asymmetric microstrip line feed multimode cylindrical dielectric resonator antenna

O. G. AVADANEI1, M.G. BANCIU2,* , L. NEDELCU2, M. AVADANEI3

Affiliation

  1. Alexandru Ioan Cuza University, Iasi, Romania
  2. National Institute of Materials Physics, Atomistilor405A, 077125 Magurele, Romania
  3. Petru Poni Institute of Macromolecular Chemistry, Iasi, Romania

Abstract

The aim of this work is the development of a cylindrical dielectric resonator antenna with multimodal operation. In order to use modes with different radiation patterns, the field distributions were investigated. Using a feeding solution with the resonator placed asymmetrically above a wide microstrip feeding line, we managed to excite and identify 17 operating modes in the 1.8-4.5 GHz frequency band. In dissimilarity with the symmetric configuration, the proposed feeding allows excitation of new modes, which exhibit a magnetic dipole radiation pattern. The new added modes enhance the antenna pattern diversity and increase the antenna capacity to mitigate the multipath effects..

Keywords

Dielectric resonator antennas, Microwaves, High order modes.

Submitted at: Jan. 12, 2022
Accepted at: Aug. 10, 2022

Citation

O. G. AVADANEI, M.G. BANCIU, L. NEDELCU, M. AVADANEI, Asymmetric microstrip line feed multimode cylindrical dielectric resonator antenna, Journal of Optoelectronics and Advanced Materials Vol. 24, Iss. 7-8, pp. 347-354 (2022)