Modeling and Analysis of a Dual-Band Dual-Polarization Radiator Using FEKO
Keywords:
Modeling and Analysis of a Dual-Band Dual-Polarization Radiator Using FEKOAbstract
A dual-band hybrid antenna element comprising of microstrip and waveguide radiating elements is theoretically investigated through computer simulations. The low band radiator is a Shorted Annular Ring (SAR) microstrip antenna and the high band antenna is an open ended circular waveguide. First, the characteristics of a SAR patch antenna are presented and reviewed. Then the dual-band antenna configuration is described, which is realized by forming a waveguide radiator in the shorted region of the SAR microstrip antenna. Modeling and analysis of the SAR patch antenna and the hybrid element are investigated using the method-of-moment-based software package FEKO. The analysis includes return loss computations showing the element bandwidth at different frequency bands and the radiation patterns in the E- and H- planes. Feeding the element in phase quadrature produces circular polarizations (CP). The radiation patterns of the CP dual-band element are also analyzed using FEKO and the axial ratio performance is subsequently assessed
Downloads
References
S. Maci and G. B. Gentili, “Dual-Frequency Patch
Antennas,” IEEE Antennas and Propagation
Magazine, vol. 39, no. 6, pp. 13 - 20, December
C. B. Ravipati and A. I. Zaghloul, “A Hybrid
Antenna Element for Dual-Band Applications,”
IEEE Antennas and Propagation Society
International Symposium Digest, Monterey, CA,
vol. 4, pp. 3412-3415, June 2004.
D. R. Jackson, J. T. Williams, A.
K. Bhattacharyya, R. L. Smith, S. J. Buchheit and
S. A. Long, “Microstrip Patch Designs That Do
Not Excite Surface Waves,” IEEE Transactions on
Antennas and Propagation, vol. 41, no. 8, pp. 1026
- 1037, August 1993.
FEKO Suite 4.1, EM Software and Systems
www.feko.info, 2003.
M. Kuribayashi and N. Goto, “A dual frequency
element,” National Convention of IECE, Japan, no.
, March 1982.
N. Goto and K. Kaneta, “Ring patch antennas for
Dual frequency use,” 1987 IEEE Antennas and
Propagation Society International Symposium
Digest, vol. 25, pp. 944 - 947, June 1987.
M. Nakano, H. Arai, W. Chujo, M. Fujise and N.
Goto, “Feed circuits of double-layered selfdiplexing antenna for mobile satellite
communications,” IEEE Transactions on Antennas
and Propagation, vol. 40, no. 10, pp1269-1271,
October 1992.
Y. Lin and L. Shafai, “Characteristics of
concentrically shorted circular patch microstrip
antennas,” IEE Proceedings, vol. 137, Pt. H, no. 1,
February 1990.
D. H. Iwasaki and Y. Suzuki, “Electromagnetically
coupled circular-patch antenna consisting of
multilayered configuration,” IEEE Transactions on
Antennas and Propagation, vol. 44, no. 6, pp. 777 -
, June 1996.
L. Boccia, G. Amendola, G. Di Massa and L.
Giulicchi, “Shorted annular patch antennas for
multi-path rejection in GPS-based attitude
determination,” Microwave and Optical
Technology Letters, January 2001.
J. Q. Howell, “Microstrip antennas,” IEEE
Transactions on Antennas and Propagation, vol.
, no.1, pp. 90 - 93, January 1975.
C. B. Ravipati, “Compact circular microstrip
antennas for conical patterns,” IEEE Antennas and
Propagation Society International Symposium
Digest, Monterey, CA, vol. 4, pp. 3820-3822, June
