Characterization of the THz quasi-optical channel for the measurement of the power radiated by photoconductive antennas

Conference paper (2017)

Authors

A. Garufo Tera-Hertz Sensing - EEMCS
G. Carluccio Tera-Hertz Sensing - EEMCS
Joshua R. Freeman University of Leeds
David R. Bacon University of Leeds
Nuria Llombart Tera-Hertz Sensing - EEMCS
Alexander G. Davies University of Leeds
A. Neto Tera-Hertz Sensing - EEMCS
Research Group
Tera-Hertz Sensing (EEMCS) (TU Delft)
Copyright: © 2017 A. Garufo, G. Carluccio, Joshua R. Freeman, David R. Bacon, Nuria Llombart, Alexander G. Davies, A. Neto
DOI: https://doi.org/10.1109/IRMMW-THz.2017.8066944
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Published Date

2017

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Tera-Hertz Sensing

Abstract

In this paper a rigorous electromagnetic characterization of the setup for measuring the THz power radiated by pulsed photoconductive antenna is discussed. Such characterization is expressed in terms of efficiencies which quantify how much power is lost in the coupling between the various components involved in the measurement setup. The conducted analysis highlights how such efficiencies affect the energy spectrum of the measured pulsed signal. Measurement results with two different detectors will be shown during the conference and will be compared against the power estimation obtained by a recently developed equivalent circuit model for photoconductive antennas. The proposed electromagnetic modeling allows us to effectively improve the design of THz time domain systems.