PIER
 
Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
Home | Search | Notification | Authors | Submission | PIERS Home | EM Academy
Home > Vol. 53 > pp. 21-29

ON IMPROVING IMPEDANCE MATCHING OF A CPW FED LOW PERMITTIVITY DIELECTRIC RESONATOR ANTENNA

By Q. Rao, T. A. Denidni, A. R. Sebak, and R. H. Johnston

Full Article PDF (279 KB)

Abstract:
In this paper, a new coplanar waveguide (CPW) feed structure is proposed to improve impedance matching of low-permittivity dielectric resonator antennas (LPDRAs). The structure is studied experimentally for a two element-rectangular LPDRA array. In the proposed structure, a horizontal strip is centrally connected at the center strip of the CPW and symmetrically added to a coplanar rectangular coupled slot. The dielectric radiators are fed by the CPW through the slot. Based on the above design concept, several antenna prototypes have been successfully designed, fabricated and tested. The measured results show that the proposed antenna exhibits unique and attractive features in terms of impedance matching, gain and the realization of an array.

Citation: (See works that cites this article)
Q. Rao, T. A. Denidni, A. R. Sebak, and R. H. Johnston, "On Improving Impedance Matching of a CPW Fed Low Permittivity Dielectric Resonator Antenna," Progress In Electromagnetics Research, Vol. 53, 21-29, 2005.
doi:10.2528/PIER04062901
http://www.jpier.org/PIER/pier.php?paper=0406291

References:
1. Long, S. A., M. W. McAllister, and L. C. Shen, "The resonant cylindrical dielectric cavity antenna," IEEE Trans. Antennas Propagat., Vol. AP-31, No. 5, 406-412, 1983.
doi:10.1109/TAP.1983.1143080

2. Junker, G. P., A. A. Kishk, and andA. W. Glisson, "Input impedance of dielectric resonator antennas excited by a coaxial probe," IEEE Trans. Antennas Propagat., Vol. 42, No. 7, 960-966, 1994.
doi:10.1109/8.299598

3. Kranenbrug, R. A. and S. A. Long, "Microstrip transmission line excitation of dielectric resonator antennas," Electron. Lett., Vol. 24, No. 9, 1156-1157, 1988.

4. St. Martin, J. T. H., Y. M. M. Antar, A. A. Kishk, A. Ittipiboon, and M. Cuhaci, "Dielectric resonator antenna using aperture coupling," Electron. Lett., Vol. 26, No. 12, 2015-2016, 1990.

5. Kranenbrug, R. A., S. A. Long, and J. T. Williams, "Coplanar waveguide excitation of dielectric resonator antennas," IEEE Trans. Antennas Propagat., Vol. 39, No. 1, 119-122, 1991.
doi:10.1109/8.64448

6. Simons, R. N. and R. Q. Lee, "Effect of parasitic dielectric resonators on CPW/aperture-coupled dielectric resonator antennas," Proc. Inst. Elect. Eng. Microwave Antennas and Propagation, Vol. 140, No. 10, 336-338, 1993.

7. Wu, J. Y., C. Y. Huang, and K. L. Wong, "Low-profile, very-high permittivity dielectric resonator antenna excited by a coplanar waveguide," Microw. Opt. Technol. Lett., Vol. 22, No. 1, 96-97, 1999.
doi:10.1002/(SICI)1098-2760(19990720)22:2<96::AID-MOP5>3.0.CO;2-0

8. Jang, Y. W., "Broadband T-shaped microstrip-fed U-slot coupled patch antenna," Electron. Lett., Vol. 38, No. 5, 495-496, 2002.
doi:10.1049/el:20020364

9. Myung, K. K., K. Kim, Y. H. Suh, and I. Park, "A T-shaped microstrip-line-fed wide slot antenna," Antennas and Propagation Society International Symposium, Vol. 3, No. 7, 1500-1503, 2000.

10. Kishk, A. A. and A. W. Glisson, "Bandwidth enhancement for split cylindrical dielectric resonator antennas," Progress in Electromagnetics Research, Vol. 33, 97-118, 2001.


© Copyright 2014 EMW Publishing. All Rights Reserved