volume | PIER Journals

2004-04-15

Analysis of Circularly Polarized Dielectric Resonator Antenna Excited by a Spiral Slot

Z. H. Qian,

Dr. Z. H. Qian

Department of Electronic Engineering

Hangzhou Dianzi University

People's Republic of China

Homepage

Kwok Leung,

Dr. Kwok Leung

Department of Electronic Engineering

City University of Hong Kong

Hong Kong

Homepage

Ru-Shan Chen

Professor Ru-Shan Chen

Department of Communication Engineering

Nanjing University of Science and Technology

China

Homepage

, Vol. 47, 111-121, 2004

doi:10.2528/PIER03102501

Abstract

The hemispherical dielectric resonator antenna (DRA) excited by a single-arm spiral slot is studied theoretically in this paper. The Green's function technique is employed to formulate an integral equation for the spiral slot current. The moment method with piecewise sinusoidal (PWS) basis and testing functions is used to convert the integral equation into a matrix equation by using a deltagap exciting source. The input impedance, return loss, axial ratio and radiation pattern are calculated. Numerical results demonstrate that the analysis is efficient.

Citation

Copy Export

Z. H. Qian, Kwok Leung, and Ru-Shan Chen, "Analysis of Circularly Polarized Dielectric Resonator Antenna Excited by a Spiral Slot," , Vol. 47, 111-121, 2004.
doi:10.2528/PIER03102501

References

1. Leung, K. W., "Rigorous analysis of dielectric resonator antenna using the method of moments," Ph.D. Dissertation, No. 5, 1993.

2. Khamas, S. K. and G. G. Cook, "Moment method analysis of printed eccentric spiral antennas using curved segmentation," IEE Proc.-Microw. Antennas Propag., Vol. 146, No. 6, 407-410, 1999.

3. Khamas, S. K. and G. G. Cook, "Moment-method analysis of printed wire spirals using curved piecewise sinusoidal subdomain basis and testing functions," IEEE Trans. Antennas Propagat., Vol. 45, No. 6, 1016-1022, 1997.
doi:10.1109/8.585750

4. Nalcano, H., K. Nakayama, H. Mimaki, J. Yamauchi, and K. Hirose, "Single-arm spiral slot antenna fed by a triplate transmission line," Electronics Letters, Vol. 28, No. 22, 2088-2090, 1992.

5. Chen, C., W. E. McKinzie III, and N. G. Alexopoulos, "Striplinefed arbitrarily shaped printed-aperture antennas," IEEE Trans. Antennas Propagat., Vol. 45, No. 7, 1186-1198, 1997.
doi:10.1109/8.596914