A novel Multi-permittivity Cylindrical Dielectric Resonator Antenna for Wideband Applications
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Date
2014-12
ORCID
Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
Společnost pro radioelektronické inženýrství
Abstract
In this paper, a novel multi-permittivity cylindrical dielectric resonator antenna for wideband application is presented. The multi-permittivity cylinder is formed by combining two different permittivity material sectors in such a way that each sector (with constant permittivity) is 90 degree apart. A direct microstrip line coupling terminated with T-stub at the open end is used to excite the multi-permittivity cylindrical dielectric resonator. The angular position of the multi sector dielectric resonator with respect to the longitudinal axis of the microstrip line and length of the additional strip at the open end of the feeding circuit is key parameters for wideband operation of the antenna. By optimizing all parameters of the proposed antenna, wideband impedance bandwidth of 56% (12.1 GHz - 21.65 GHz) is achieved. The average gain of the antenna throughout the bandwidth is 5.9 dB with good radiation properties in both E-plane and H-plane. A well matched simulation and experimental results show that the antenna is suitable for wideband applications.
Description
Citation
Radioengineering. 2014, vol. 23, č. 4, s. 1071-1076. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2014/14_04_1071_1076.pdf
http://www.radioeng.cz/fulltexts/2014/14_04_1071_1076.pdf
Document type
Peer-reviewed
Document version
Published version
Date of access to the full text
Language of document
en