A Wideband Leaky Lens Antenna with Frequency-Stable Beams for DESHIMA Spectrometer

Conference paper (2017)

Authors

O. Yurduseven Kavli institute of nanoscience Delft, Tera-Hertz Sensing - EEMCS
S. Bosma Kavli institute of nanoscience Delft, Tera-Hertz Sensing - EEMCS
A. Endo QN/Quantum Nanoscience , Tera-Hertz Sensing - EEMCS , Kavli institute of nanoscience Delft
A. Neto Kavli institute of nanoscience Delft, Tera-Hertz Sensing - EEMCS
Nuria Llombart Kavli institute of nanoscience Delft, Tera-Hertz Sensing - EEMCS
Research Group
Tera-Hertz Sensing (EEMCS) (TU Delft)
Copyright: © 2017 O. Yurduseven, S. Bosma, A. Endo, A. Neto, Nuria Llombart
DOI: https://doi.org/10.1109/IRMMW-THz.2017.8066899
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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

DESHIMA (Deep Spectroscopic High-redshift Mapper) is an instrument aiming at efficiently making spectroscopic redshift measurements of sub-mm wave galaxies (SMGs), thereby providing about the formation and the evolution of stars and galaxies. The aim of this work is to provide a preliminary study into the design of a wideband leaky lens antenna coupled quasi-optical system within a 1:3 bandwidth. We propose a multi-pixel solution where the virtual sources are located on the lens focal plane. The design is able to provide frequency stable beams to achieve high Gaussian coupling efficiency within the entire bandwidth. We will evaluate the performance of the quasi-optical system design in terms of its Gaussicity and scan loss. The design is specifically targeted at the ASTE telescope located in Atacama, Chile.