Analytic Evaluation of Input Impedance of an Equilateral Triangular Dielectric Resonator Antenna

Abstract

In this paper, analytical expressions are given to evaluate the input impedance of a probe-fed (inserted) Equilateral Triangular Dielectric Resonator Antenna (ETDRA) for different $T{M}_{mnp}^z$ modes for the first time. Theoretical results are verified with measured data as found in the literature and data obtained using a 3D EM simulator HFSS for fundamental $T{M}_{101}^z$ mode for arbitrary dimensions and relative permittivity $({\epsilon }_r=12,50\text{and}100)$. Good agreement is found between our theory and measured (and simulated) data.

KEYWORDS:

• Cavity model
• Dielectric resonator antenna
• Input impedance
• Probe excitation

Additional information

Notes on contributors

Sudipta Maity

Sudipta Maity was born in Kolkata, India in 1985 and obtained his ME (Telecommunication Engineering) and PhD degree from Jadavpur University, India in 2010 and 2017, respectively. Currently, he is working as assistant professor at the Dept of Electronics and Communication Engg, National Institute of Technology (NIT), Rourkela Odisha 769008, India. He has published 17 international journals and 15 research articles in national/international conferences. He has received six paper competition awards. His areas of interest include microstrip antennas, dielectric resonator antennas, substrate integrated waveguide, metamaterial, spectral domain method of moment, integral transformation technique, analytical techniques, conformal mapping and computational electromagnetic. Corresponding author. E-mail: [email protected]

Bhaskar Gupta

Bhaskar Gupta (S’83–A’89–M’90–S–’99) was born in Kolkata, India, in 1960. He received the BE (Telecommunication Engineering), ME (Telecommunication Engineering) and PhD degrees from Jadavpur University, Kolkata, India, in 1982, 1984 and 1996, respectively. He is currently a professor in the Department of Electronics and Telecommunications Engineering, Jadavpur University, Kolkata, India, where he has been teaching since 1985. He has published about 350 research articles in refereed journals and conferences and co-authored three books on advanced research topics. His present areas of interest are planar antennas, dielectric resonator antennas, wearable antennas, photonic band gap materials, computational electromagnetic, MEMS design and application of soft computing techniques in microwave engineering. Dr Gupta is a Fellow of IETE, a Fellow of the Institution of Engineers (India), and a Life Member of SEMCE(I). He was the Chairman of AP-MTT Joint Chapter, IEEE Calcutta Section and Chairman, Students’ Activities, IEEE Calcutta Section. He has supervised sixteen doctoral theses and is presently guiding sixteen more. He served as reviewer in different internationally acclaimed journals. Furthermore, he successfully completed seventeen research projects sponsored by various agencies and is currently working on three more, including national and international collaborative projects. E-mail: [email protected]