Leaky Lens Photo-Conductive Antennas on LT GaAs membranes

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Leaky Lens Photo-Conductive Antennas on LT GaAs membranes

Conference Paper (2021)

Author(s)

Paolo Maria Sberna (TU Delft - EKL Processing)

Arturo Fiorellini Bernardis (TU Delft - Tera-Hertz Sensing)

Alessandro Garufo (TNO)

Juan Bueno (SRON–Netherlands Institute for Space Research)

Nuria Llombart (TU Delft - Tera-Hertz Sensing)

Andrea Neto (TU Delft - Tera-Hertz Sensing)

DOI related publication

https://doi.org/10.1109/IRMMW-THz50926.2021.9566890 Final published version

To reference this document use

https://resolver.tudelft.nl/uuid:473e523a-6c5a-4bf7-b3ad-0865184d2630

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Publication Year

2021

Language

English

Article number

9566890

Publisher

IEEE

ISBN (print)

978-1-7281-9425-7

ISBN (electronic)

978-1-7281-9424-0

Event

Downloads counter

180

Abstract

Photo-conductive lens antennas (PCAs) exploit the ultra-short photoconductivity phenomenon of specific semiconductors in order to generate pulsed radiation in the THz regime. State of the art PCAs suffer from high dispersion and low radiation efficiency over the large generated bandwidth due to the poor coupling between the antenna and the dielectric lens. In this work, a leaky lens PCA is proposed to overcome these issues. The presented structure, indeed, aims at a 1:15 bandwidth (0.1 THz – 1.5 THz). The design, assembly and manufacture of a LT-GaAs membrane-based leaky lens PCA are shown and discussed together with the measurement of the radiated power.