Characterization of GaN-based Low Noise Amplifiers at Cryogenic Temperatures
Paper in proceedings, 2019

In this paper, we present the first characterization of GaN-based Low-Noise Amplifiers (LNAs) at cryogenic temperatures for prospective use in radio-astronomy receivers. Both commercial and prototype LNAs fabricated in-house demonstrate a nine-fold improvement of their room-temperature noise performance when cooled to about 10 K. Very promising noise temperatures of about 8 K were measured without any specific optimization of the LNA design for cryogenic operation.

Author

Vincent Desmaris

Chalmers, Space, Earth and Environment, Onsala Space Observatory, GARD Technology

Denis Meledin

Chalmers, Space, Earth and Environment, Onsala Space Observatory, GARD Technology

Erik Sundin

Chalmers, Space, Earth and Environment, Onsala Space Observatory, GARD Technology

Mattias Thorsell

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics, Microwave Electronics

Niklas Rorsman

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Victor Belitsky

Chalmers, Space, Earth and Environment, Onsala Space Observatory, GARD Technology

ISSTT 2019 - 30th International Symposium on Space Terahertz Technology, Proceedings Book

67-68

2019 30th International Symposium on Space Terahertz Technology, ISSTT 2019
Gothenburg, Sweden,

Subject Categories

Aerospace Engineering

Other Chemical Engineering

Signal Processing

More information

Latest update

12/8/2020