Cryogenic W-band LNA for ALMA band 2+3 with average noise temperature of 24 K
Paper i proceeding, 2017

A cryogenic low noise amplifier that operates across the E and W-bands, from 65 GHz to 116 GHz, has been developed using 0.1-?m InP HEMT technology. Such wideband performance makes this work suitable for the ALMA telescope where two of its bands, 67-90 GHz of Band 2 and 85-116 GHz of Band 3, can be combined into one. At an ambient temperature of 5.5 K, this W-band LNA demonstrates an average noise temperature of 24.7 K with more than 21 dB gain and +/-3.0 dB gain flatness from 65 GHz to 116 GHz. To the best knowledge of the authors, this combination of bandwidth, gain flatness and noise temperature has not been demonstrated before.

Cryogenic

Low noise amplifier

Noise temperature

ALMA

W-band

LNA

InP

MMIC

Författare

Yulung Tang

Low Noise Factory AB

Niklas Wadefalk

Low Noise Factory AB

J. Kooi

CalTech

Joel Schleeh

Low Noise Factory AB

Giuseppe Moschetti

Low Noise Factory AB

Per-Åke Nilsson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

Arsalan Pourkabirian

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Eunjung Cha

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

Silvia Tuzi

Chalmers, Fysik, Biologisk fysik

Jan Grahn

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

IEEE MTT-S International Microwave Symposium Digest

0149645X (ISSN)

176-179 8058981

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1109/MWSYM.2017.8058981

ISBN

978-1-5090-6360-4

Mer information

Senast uppdaterat

2018-09-06