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Tradeoffs in the feed point selection of a cylindrical dielectric resonator antenna

Published online by Cambridge University Press:  26 July 2018

Anuj Kumar Ojha Open the ORCID record for Anuj Kumar Ojha [Opens in a new window]  and
A. V. Praveen Kumar
Anuj Kumar Ojha*
Affiliation:
Department of Electrical and Electronics Engineering BITS Pilani, Pilani Campus, Rajasthan-333031, India
A. V. Praveen Kumar
Affiliation:
Department of Electrical and Electronics Engineering BITS Pilani, Pilani Campus, Rajasthan-333031, India
*
Author for correspondence: Anuj Kumar Ojha, E-mail: [email protected]
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Abstract

This paper aims at investigating the dependence of the impedance and the radiation characteristics of a cylindrical dielectric resonator antenna (DRA), on the feed point of the DRA. It is demonstrated that the resonant frequency, bandwidth, radiation pattern symmetry, and cross-polarized radiation levels depend highly on the feed point. Three standard single-ended feed mechanisms such as the microstrip line, the microstrip slot, and the coaxial probe are taken as examples, to demonstrate the feed-point dependence of the DRA performance. Standard commercial EM simulation tools (ANSYS HFSS and CST Microwave Studio) are used for generating insightful results to help the discussion. This analysis also provides a functional comparison among the above said three feed mechanisms with respect to the feed-point dependence, which is further verified through measurements of DRA prototypes employing the three feeds.

Keywords

Antenna designelectromagnetic compatibilitymodeling and measurements
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 10 , Issue 10 , December 2018 , pp. 1196 - 1203
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2018 

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References

1.Long, SA, Mcallister, MW and Shen, LC (1983) The resonant cylindrical dielectric cavity antenna. IEEE Transactions on Antennas and Propagation 31, 406–412.Google Scholar
2.Petosa, A and Ittipiboon, A (2010) Dielectric resonator antennas: a historical review and the current state of the art. IEEE Antennas Propagation Magazine 52, 91–116.Google Scholar
3.Drossos, G, Wu, Z and Davis, LE (1997) A comparative study of circular microstrip and cylindrical dielectric resonator antennas. 10th International Conference on Antennas and Propagation, pp. 14–17.Google Scholar
4.Lai, QH, Almpanis, G, Fumeaux, C, Benedickter, H and Vahldieck, R (2008) Comparison of the radiation efficiency for the dielectric resonator antenna and the microstrip antenna at Ka band. IEEE Transactions on Antennas and Propagation 56, 3589–3592.Google Scholar
5.Guha, D and Kumar, C (2016) Microstrip patch versus dielectric resonator antenna bearing all commonly used feeds: an experimental study to choose right element. IEEE Antennas Propagation Magazine 58, 45–55.Google Scholar
6.Tang, H, Chen, J-X, Zhan, Y, Yang, W-W, Zhou, L-H and Li, W (2017) Differential dual-band dual-polarized dielectric resonator antenna. IEEE Transactions on Antennas and Propagation 65, 855–860.Google Scholar
7.Li, B and Leung, KW (2008) On the differentially fed rectangular dielectric resonator antenna. IEEE Transactions on Antennas and Propagation 56, 353–359.Google Scholar
8.Mongia, RK and Bhartia, P (1994) Dielectric resonator antennas – a review and general design relations for resonant frequency and bandwidth. International Journal of Microwave and Millimeter-Wave Computer-Aided Engineering 4, 230–247.Google Scholar
9.Rashidian, A, Tayfeh Aligodarz, M, Shafai, L and Klymyshyn, DM (2013) On the matching of microstrip-fed dielectric resonator antennas. IEEE Transactions on Antennas and Propagation 61, 5291–5296.Google Scholar
10.Kranenburg, RA and Long, SA (1988) Microstrip transmission line excitation of dielectric resonator antennas. Electronics Letters 24, 1156–1157.Google Scholar
11.Kishk, AA, Ittipiboon, A, Antar, YMM and Cuhaci, M (1995) Slot excitation of the dielectric disk radiator. IEEE Transactions on Antennas and Propagation 43, 198–201.Google Scholar
12.Sabouni, A and Kishk, AA (2013) Dual-polarized, broadside, thin dielectric resonator antenna for microwave imaging. IEEE Antennas and Wireless Propagation Letters 12, 380–383.Google Scholar