Schematic of a Directional Terahertz Wireless Link (image) American Institute of Physics Share Print E-Mail Caption (Left) A schematic of a directional terahertz wireless link that incorporates two bounces off of walls, so that there is no line-of-sight path from the transmitter to the receiver. The inset shows the bit error rate (BER) on a log scale, as a function of the output power of the transmitter. At both 100 GHz and 200 GHz, essentially error free transmission (BER = 10^-9) can be achieved. (Right) a close-up photo of the transmitter rig used in these measurements, which include a horn antenna and a Teflon lens to increase the gain of the system. Credit Daniel Mittleman Usage Restrictions This image may be used only with appropriate credit. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.