volume | PIER Journals

Abstract

The wide-angle bicone antenna terminated by a spherical cap is investigated. The antenna radiation patterns have been observed for various values of where represents the phase constant and represents the conical length. It is seen that for large values of the radiation pattern is limited within an angular sector bounded by the cones of the antenna. Next the antenna is optimized for ultra-wideband (UWB) operation through the use of loading techniques. The transient wideband radiated and received responses of the antenna have been observed and the relationship between the wave shapes of the transient field and the input pulse have been determined.

1. Schelkunoff, S. A., Electromagnetic Waves, Vol. 9, Van Nostrand, 1943.

2. Smith, P. D. P., "The conical dipole of wide-angle," Journal of Applied Physics, Vol. 19, 11-23, 1948.
doi:10.1063/1.1697866 Google Scholar

3. Papas, C. H. and R. W. P. King, "Input impedance of wide-angle conical antennas fed by a coaxial line," Proceedings IRE, Vol. 37, 1269-1271, 1949.
doi:10.1109/JRPROC.1949.234607 Google Scholar

4. Papas, C. H. and R. W. P. King, "Radiations from wide-angle conical antenna fed by a coaxial line," Proceeding IRE, Vol. 39, 49-51, 1951.
doi:10.1109/JRPROC.1951.230420 Google Scholar

5. Sandler, S. S. and R. P. W. King, "Compact conical antenna for wide-band coverage," IEEE Transactions on Antenna and Propagation, Vol. 42, 436-439, Mar. 1994.
doi:10.1109/8.280735 Google Scholar

6. Samaddar, S. N. and E. L. Mokole, "Biconical antenna with unequal cone angles," IEEE Transactions on Antenna and Propagation, Vol. 46, No. 2, 181-193, 1998.
doi:10.1109/8.660962 Google Scholar

7. Kolundzija, B. M., J. S. Ognjanovic, and T. K. Sarkar, WIPL-D: Software for Electromagnetic Analysis of Composite Wire, Plate and Dielectric Structures, Artech House, 1995.

8. Ghosh, D., A. De, M. C. Taylor, T. K. Sarkar, M. C. Wicks, and E. Mokole, "Transmission and reception by ultra wideband (UWB) antennas," IEEE Antenna and Propagation Magazine, Vol. 48, No. 5, 66-99, Oct. 2006. Google Scholar

9. Sarkar, T. K., M. C. Wicks, M. Salazar-Palma, and R. J. Bonneau, "Smart Antennas," Wiley-IEEE Press, Apr. 22 2003. Google Scholar

10. Harrison, C. W. and R. W. P. King, "On the transient response of an infinite cylindrical antenna," IEEE Transactions on Antenna and Propagation, 301-302, 1967.
doi:10.1109/TAP.1967.1138907 Google Scholar

11. Kanda, M., "Time domain sensors and radiators," Time Domain Measurements in Electromagnetics, Vol. 5, E. K. Miller (ed.), Van Nostrand Reinhold, New York, 1986. Google Scholar

12. Chisholm, W. A. and W. Janischewskyj, "Lightning surge response of ground electrodes," IEEE Trans. on Power Delivery, Vol. 4, No. 2, 1329-1337, Apr. 1989.
doi:10.1109/61.25620 Google Scholar

13. Baba, Y. and V. A. Rakov, "On the interpretation of ground reflections observed in small-scale experiments simulating lightning strikes to towers," IEEE Trans. on EMC, Vol. 47, No. 3, 533-542, Aug. 2005. Google Scholar

Dr. Debalina Ghosh

Professor Tapan Kumar Sarkar

Dr. Eric L. Mokole