Title :
Time Reversal With MISO for Ultrawideband Communications: Experimental Results
Author :
Qiu, Robert C. ; Zhou, Chenming ; Guo, Nan ; Zhang, John Q.
Author_Institution :
Dept. of Electr. & Comput. Eng., Tennessee Technol. Univ., Cookeville, TN
Abstract :
Time reversal (TR) communications marks a paradigm shift in ultrawideband (UWB) communications. The system complexity can be shifted from the receiver to the transmitter, which is ideal to some applications. UWB multiple input-single output (MISO) is enabled by the use of the TR scheme. Two basic problems are investigated experimentally using short UWB radio pulses (nanosecond duration). Temporal focusing and increase in collected-energy with the number of antennas are verified. Also, the reciprocity of realistic channels, the cornerstone of TR, is demonstrated perhaps for the first time in electromagnetics
Keywords :
antenna arrays; receiving antennas; transmitting antennas; ultra wideband communication; wireless channels; MISO; UWB communications; channel reciprocity; multiple input-single output; receiver; receiving antennas; time reversal communications; transmitter; transmitting antennas; ultrawideband communication; Antenna arrays; Antennas and propagation; Electromagnetics; Radio transmitters; Receivers; Receiving antennas; Transmitting antennas; Ultra wideband antennas; Ultra wideband technology; Wireless communication; Channel reciprocity; multiple input¿single output (MISO); time reversal (TR); ultrawideband (UWB);
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2006.875888
