Progress In Electromagnetics Research B
ISSN: 1937-6472
Home | Search | Notification | Authors | Submission | PIERS Home | EM Academy
Home > Vol. 2 > pp. 223-232


By S.-Q. Xiao, J. Chen, X.-F. Liu, and B.-Z. Wang

Full Article PDF (916 KB)

Spatial focusing characteristics of time reversal (TR) electromagnetic waves are studied in this paper. Different antenna arrays are used as a TR mirror and their elements are arranged in one and two dimensions in the horizontal plane. The focused energy density around initial source location is investigated in non-line-ofsight (NLOS) and line-of-sight (LOS) cases, respectively. The results demonstrated that, roughly speaking, under the case of fixed space between two adjacent elements, the more the number of the array elements, the stronger the focused average energy density. However, in the case of fixed TR mirror array aperture, some abnormal phenomena are observed when additional elements are inset into the initial one.

Citation: (See works that cites this article)
S.-Q. Xiao, J. Chen, X.-F. Liu, and B.-Z. Wang, "Spatial Focusing Characteristics of Time Reversal UWB Pulse Transmission with Different Antenna Arrays," Progress In Electromagnetics Research B, Vol. 2, 223-232, 2008.

1. Di Benedetto, M.-G. and G. Giancola, Understanding Ultra Wide Band Radio Fundamentals, Prentice Hall PTR, New Jersey, 2004.

2. Choi, J. D. and W. E. Stark, "Performance of ultrawideband communications with suboptimal receivers in multipath channels," IEEE J. Select. Areas Commun., Vol. 20, No. 9, 1754-1766, 2002.

3. Fan, Z., L. X. Ran, and J. A. Kong, "Source pulse optimizations for UWB radio systems," Journal of Electromagnetic Waves and Applications, Vol. 20, 1535-1550, 2006.

4. Yang, D., C. Liao, and W. Chen, "Numerical solution on coupling of UWB pulse into a rectangular cavity through slots," Journal of Electromagnetic Waves and Applications, Vol. 19, 1629-1638, 2005.

5. Klemm, M. and G. Troester, "EM energy absorption in the human body tissues due to UWB antennas," Progress In Electromagnetics Research, Vol. 62, 261-280, 2006.

6. Kharakhili, F. G., G. Dadashzadeh, M. Fardis, N. Hojjat, and A. A. K. Ahmad, "Rectangular slot with a novel triangle ring microstrip feed for uwb applications," Journal of Electromagnetic Waves and Applications, Vol. 21, 387-396, 2007.

7. Kyritsi, P., G. Papanicolaou, P. Eggers, and A. Oprea, Time reversal techniques for wireless communications, Proc. 60th IEEE Vehicular Technology Conference, 26-29, 2004.

8. Nguyen, H. T., J. B. Andersen, and G. F. Pedersen, "The potential use of time reversal techniques in multiple element antenna systems," IEEE Communications Letters, Vol. 9, No. 1, 40-42, 2005.

9. Xiao, S., J. Chen, B. Z. Wang, and X. Liu, "A numerical study on time-reversal electromagnetic wave for indoor ultrawideband signal transmission," Progress In Electromagnetics Research, Vol. 63, 329-342, 2007.

10. Thomas, S., E. Majid, H. Jan, P. George, and A. J. Paulraj, Application of time-reversal with MMSE equalizer to UWB communications, Proc. 2004 IEEE Global Telecommunications Conference, 3123-3127, 2004.

11. Hung, T. N., Z. K. Istvan, and P. C. F. Eggers, "A time reversal transmission approach for multiuser UWB communications," IEEE Transaction on Antennas and Propagation, Vol. 54, No. 11, 3216-3244, 2006.

12. Qiu, R. C., C. Zhou, N. Guo, and J. Q. Zhang, "Time reversal with MISO for ultrawide band communication: Experiment results," IEEE Antenna and Wireless Propagation Letters, Vol. 5, 269-273, 2006.

13. Lerosey, G., J. D. Rosny, A. Tourin, A. Derode, and M. Fink, "Time reversal of wideband microwave," Applied Physics Letters, Vol. 88, 154101-154103, 2006.

14. Shao, W., B.-Z. Wang, and J. Wang, Hybrid 2D FDTD method for the analysis of lossy transmission lines, Proceedings of Progress In Electromagnetics Research Symposium, 367, Nanjing, 2004.

© Copyright 2010 EMW Publishing. All Rights Reserved