volume | PIER Journals

Abstract

The thermal noise of the resistive vee dipole (RVD) has been analyzed using a numerical model based on the method of moments. The RVD analyzed in this paper has curved arms and is loaded with surface-mount chip resistors, which approximate a modified Wu-King profile. The total noise power delivered to a 200 Ω feed line and the contribution of individual resistors to the total noise power are presented. The results show that the noise temperature of the RVD is very high and the resistors close to the drive point contribute more to the total noise power than do the resistors close to the open ends of the antenna arms.

1. Montoya, T. P. and G. S. Smith, "Resistively-loaded vee antennas for short-pulse ground penetrating radar," IEEE Int. Antennas Propagat. Symp. Dig., 2068-2071, 1996. Google Scholar

2. Kim, K., "Numerical and experimental investigation of impulseradiating antennas for use in sensing applications," Ph.D. dissertation, Georgia Institute of Science and Technology, 2003. Google Scholar

3. Wu, T. T. and R. W. P. King, "The cylindrical antenna with nonreflecting resistive loading," IEEE Trans. Antennas Propagat., Vol. 13, No. 3, 369-373, 1965.
doi:10.1109/TAP.1965.1138429 Google Scholar

4. Shen, L. C. and R. W. P. King, "Correction to `The cylindrical antenna with nonreflecting resistive loading'," IEEE Trans. Antennas Propagat., Vol. 13, No. 6, 998, 1965.
doi:10.1109/TAP.1965.1138565 Google Scholar

5. Maloney, J. G. and G. S. Smith, "A study of transient radiation from the Wu-King resistive monopole --- FDTD analysis and experimental measurements," IEEE Trans. Antennas Propagat., Vol. 41, No. 5, 668-676, 1993.
doi:10.1109/8.222286 Google Scholar

6. Maloney, J. G. and G. S. Smith, "Correction to `A study of transient radiation from the Wu-King resistive monopole --- FDTD analysis and experimental measurements'," IEEE Trans. Antennas Propagat., Vol. 43, No. 2, 226, 1995. Google Scholar

7. Counts, T., A. C. Gurbuz, W. R. Scott, J. H. McClellan, and K. Kim, "Multistatic ground-penetrating radar experiments," IEEE Trans. Antennas Propagat., Vol. 45, No. 8, 2544-2553, 2007. Google Scholar

8. Montoya, T. P. and G. S. Smith, "Vee dipoles with resistive loading for short-pulse ground-penetrating radar," Microw. Opt. Tech. Lett., Vol. 13, No. 3, 132-137, 1996.
doi:10.1002/(SICI)1098-2760(19961020)13:3<132::AID-MOP6>3.0.CO;2-O Google Scholar

9. Montoya, T. P. and G. S. Smith, "Land mine detection using a ground-penetrating radar based on resistively loaded vee dipoles," IEEE Trans. Antennas Propagat., Vol. 47, No. 12, 1795-1806, 1999. Google Scholar

10. Scott, W. R., K. Kim, G. D. Larson, A. C. Gurbuz, and J. H. McClellan, "Combined seismic, radar, and induction sensor for landmine detection," Proc. IEEE Int. Geosci. Remote Sensing Symp., 1613-1616, 2004. Google Scholar

11. Scott, W. R., K. Kim, and G. D. Larson, "Investigation of a combined seismic, radar, and induction sensor for landmine detection," J. Acoust. Soc. Am., Vol. 15, No. 5, 2415, 2004.
doi:10.1163/156939307783239438 Google Scholar

12. Guo, Y. C., L. Xu, and X. W. Shi, "Improved loading profile for GPR antenna applications," Journal of Electromagnetic Waves and Applications, Vol. 21, No. 10, 1367-1378, 2007.
doi:10.1049/el:20072344 Google Scholar

13. Kim, K. and S. Yang, "Efficiency of resistive vee dipole antenna," Electron. Lett., Vol. 43, No. 22, 1169-1171, 2007.
doi:10.1109/TAP.2005.852320 Google Scholar

14. Kim, K. and W. R. Scott, "Design of a resistively-loaded vee dipole for ultra-wideband ground-penetrating radar applications," IEEE Trans. Antennas Propagat., Vol. 53, No. 8, 2525-2532, 2005. Google Scholar

15. FEKO Website, available online: http://www.feko.info.

16. Kittel, C., Elementary Statistical Physics, Wiley, 1958.
doi:10.1109/TAP.2005.858825

17. Craeye, C., "Including spatial correlation of thermal noise in the noise model of high-sensitivity arrays," IEEE Trans. Antennas Propagat., Vol. 53, No. 11, 3845-3848, 2005. Google Scholar

18. Collin, R. E. and F. J. Zucker, Antenna Theory, Part I, McGraw-Hill, 1969.

19. "Rufa 2.4 GHz SMD Antenna,", available online: http://www.antenova.com. Google Scholar

Dr. S. Park

Prof. Kangwook Kim