A 1mM SIS receiver utilizing different intermediate frequency (IF) configurations
Paper in proceeding, 2019

We present experimental studies of the noise performance of a prototype heterodyne SIS receiver operating at wavelengths of about 1mm. The receiver employs different 4-12GHz intermediate frequency amplification chain configurations: a standalone low noise amplifier (LNA), the LNA cascading with a cryogenic isolator, and a low noise balanced amplifier. From our experiments and measurements, we could conclude that the latter configuration demonstrates the best broadband noise performance. In fact, the receiver equipped with the balanced LNA does not have noticeable noise degradation caused by the IF hybrids of the balanced LNA scheme. Moreover, our results indicate that even broader IF bandwidth of the receivers could be prospectively reached using balanced LNAs in the IF amplification chain.

Author

Denis Meledin

Chalmers, Space, Earth and Environment, Onsala Space Observatory

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Vincent Desmaris

Chalmers, Space, Earth and Environment, Onsala Space Observatory

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Erik Sundin

Chalmers, Space, Earth and Environment, Onsala Space Observatory

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Alexey Pavolotskiy

Chalmers, Space, Earth and Environment, Onsala Space Observatory

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Mathias Fredrixon

Chalmers, Space, Earth and Environment, Onsala Space Observatory

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Igor Lapkin

Chalmers, Space, Earth and Environment, Onsala Space Observatory

Russian Academy of Sciences

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Magnus Strandberg

Chalmers, Space, Earth and Environment, Onsala Space Observatory

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Andrey B. Ermakov

National Research University of Electronic Technology (MIET)

Chalmers, Space, Earth and Environment, Onsala Space Observatory

J. D. Gallego

Yebes Observatory

I. Lopez-Fernandez

Yebes Observatory

C. Diaz

Yebes Observatory

Victor Belitsky

Chalmers, Space, Earth and Environment, Onsala Space Observatory

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

164-167

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

Subject Categories

Telecommunications

Communication Systems

Signal Processing

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