A Cryo-CMOS Low-Noise Amplifier With 2.3-to-8.5-K Noise Temperature at 20 K for Highly Integrated Radio-Astronomy Receivers

Article Engineering, Electrical & Electronic

Low-Noise Amplifier for Next-Generation Radio Astronomy Telescopes: Review of the State-of-the-Art Cryogenic LNAs in the Most Challenging Applications

Chau-Ching Chiong et al.

Summary: Radio astronomy explores the universe through the detection of radio signals, covering various types of sources from our solar system to the beginning of the universe.

IEEE MICROWAVE MAGAZINE (2022)

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Article Engineering, Electrical & Electronic

A Cryogenic Broadband Sub-1-dB NF CMOS Low Noise Amplifier for Quantum Applications

Yatao Peng et al.

Summary: This study presents a cryogenic broadband low noise amplifier (LNA) for quantum applications based on a standard 40-nm CMOS technology, achieving broadband input matching impedance and low noise figure, while demonstrating sub-1 dB noise figure at 4.2 K temperature.

IEEE JOURNAL OF SOLID-STATE CIRCUITS (2021)

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Article Engineering, Electrical & Electronic

Cryogenic Noise-Parameter Measurements: Recent Research and a Fully Automated Measurement Application

Alexander Sheldon et al.

Summary: Researchers have been working towards developing a zero-noise broadband receiver, with cryogenic low-noise amplifiers being a notable innovation that has achieved the lowest noise levels so far. References to cryogenic amplifiers date back to the 1950s, but they continue to be a topic of interest among researchers.

IEEE MICROWAVE MAGAZINE (2021)

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Proceedings Paper Engineering, Electrical & Electronic

A 1 mW 0.1-3 GHz Cryogenic SiGe LNA with an Average Noise Temperature of 4.6 K

Mohsen Hosseini et al.

Summary: An integrated cryogenic LNA using SiGe HBT technology has been successfully designed and implemented, achieving a low noise temperature and high gain with low power consumption. This LNA outperforms previous broadband SiGe cryogenic LNAs in terms of noise performance and power efficiency.

2021 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS) (2021)

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Proceedings Paper Engineering, Electrical & Electronic

Automated Noise-Parameter Measurements of Cryogenic LNAs

Alexander Sheldon et al.

Summary: This paper discusses the importance of measuring cryogenic noise parameters, explains the measurement process, and analyzes the measurement uncertainty. It also presents measurements of a low-noise amplifier at different temperatures to verify the proper operation of the measurement system, with a typical measurement uncertainty of less than 10% in noise temperatures and minimum noise temperatures.

97TH ARFTG MICROWAVE MEASUREMENT CONFERENCE: CONDUCTED AND OTA MEASUREMENT CHALLENGES FOR URBAN, RURAL & SATCOMM CONNECTIVITY (2021)

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Article Engineering, Electrical & Electronic