Design of Ellipse Antenna Array for Cellular Phone Localization Systems
- 1 Faculty of Sciences, Lebanese University, Tripoli, Lebanon
- 2 IETR, INSA Rennes, Rennes, France
- 3 Faculty of Public Health, Lebanese University, Zahle, Lebanon
- 4 Thales Communication, Colombes, France
Abstract
This paper describes our contribution in the ANR (Agence Nationale de la Recherche) project called GELOCOM (GEo-LOCalisation de telephOnes Mobiles) managed by the THALES Communications company, dedicated to the emergency localization of cellular phones. This contribution takes place in the field of antennas, with the development of broad-band systems: a circular array of six elements with separated outputs for the receiving part. In this paper, we present the design and the characterization of broad-band double ellipse array antenna. This special structure is chosen in order to obtain a good omnidirectional radiation pattern, enhance the gain and maximize the V/H polarization ratio. In comparison with the already existing antenna systems in the wireless market for similar purposes, the proposed antenna has considerably shown better performance which makes it competitive among other antenna models. For the design and optimization of antennas, we use CST MWS software. The antennas have been designed and successfully measured.
- Agarwall, N.P., Kumar, G. and Ray, K.P. (1998) Wide-Band Planar Monopole Antennas. IEEE Transactions on Antennas and Propagation, 46, 294-295. https://doi.org/10.1109/8.660976
- Ray, K.P., Anob, P.V., Kapur, R. and Kumar, G. (2001) Broadband Planar Rectangular Monopole Antennas. Microwave Optical Technology Letters, 28, 55-59. https://doi.org/10.1002/1098-2760(20010105)28:1 3.0.CO;2-X
- Lee, E., Hall, P.S. and Gardner, P. (1999) Compact Wideband Planar Monopole Antenna. Electronics Letters, 35, 2157-2159. https://doi.org/10.1049/el:19991491
- Kumar, G. and Ray, K.P. (2002) Broadband Microstrip Antennas. Artech House, United States.
- Honda, S., Ito, M., Seki, H. and Jingo, Y. (1992) A Disc Monopole Antenna with 1:8 Impedance Bandwidth and Omnidirectional Radiation Pattern. Proceedings of theInternational Symposium on Antennas and Propagation (ISAP) Conference, Sapporo, 22-25 September 1992, 1145-1148.
- Hammoud, Poey, P. and Colomel, F. (1993) Matching the Input Impedance of a Broadband Disc Monopole. Electronics Letters, 29, 406-407. https://doi.org/10.1049/el:19930272
- Ammann, M.J. and Zhi, N.C. (2003) Wideband Monopole Antennas for Multi-Band Wireless Systems. IEEE Antennas and Propagation Magazine, 45, 146-150. https://doi.org/10.1109/MAP.2003.1203133