On the Experimental Characterization of Generated and Received Pulses of Photoconductive Antennas
H. Zhang (TU Delft - Tera-Hertz Sensing)
J. Bueno Lopez (TU Delft - Electronics)
P.M. Sberna (TU Delft - Tera-Hertz Sensing)
Nuria Llombart (TU Delft - Tera-Hertz Sensing)
A. Neto (TU Delft - Tera-Hertz Sensing)
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Abstract
Photoconductive antennas (PCAs) are promising candidates for sensing and imaging systems. We have investigated their properties under pulsed laser illumination both in transmission and reception. First, a transmitting PCA has been characterized including a power measurement. Then, a Quasi-Optical (QO) link between a transmitter and a receiver was modelled and analyzed. In this work, we characterize this link with measurement. We use bow-tie based PCAs as examples, and measure the radiated power of the transmitter and the detected current of the receiver. The measurement shows very good agreement with the simulation.