Cryogenic IF Balanced LNAs Based on Superconducting Hybrids for Wideband 2SB THz receivers
Paper in proceedings, 2017

Future heterodyne 2SB THz receivers for Radio astronomy shall require better sensitivity and higher IF bandwidth. This paper investigate, in a modular approach, the use of balanced amplifiers based on superconducting quadrature hybrids, as an option to realize wide band low noise amplifiers with improved input matching without compromising the noise performance. Measurements of the proposed wideband balanced amplifier shows very good agreement with the standalone amplifier in terms of gain and noise temperature. The input matching of the balanced amplifiers are limited by the input matching of the hybrids, still showing return loss better than 15 dB.

Author

Erik Sundin

Chalmers, Earth and Space Sciences, Advanced Receiver Development

Andrey Ermakov

Chalmers, Earth and Space Sciences, Advanced Receiver Development

Vincent Desmaris

Chalmers, Earth and Space Sciences, Advanced Receiver Development

Hawal Marouf Rashid

Chalmers, Earth and Space Sciences, Advanced Receiver Development

Denis Meledin

Chalmers, Earth and Space Sciences, Advanced Receiver Development

Maria Bylund

Chalmers, Earth and Space Sciences, Advanced Receiver Development

Victor Belitsky

Chalmers, Earth and Space Sciences, Advanced Receiver Development

28TH INTERNATIONAL SYMPOSIUM ON SPACE TERAHERTZ TECHNOLOGY

Infrastructure

Nanofabrication Laboratory

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering

More information

Created

12/18/2017