Radio astronomy is a subfield of astronomy that explores the universe via radio signals up to
a few terahertz. Since the first detection of radio signals from the Milky Way by Karl G. Jansky …

Cryogenically cooled low-noise amplifiers (LNAs) have had a profound impact on
experimental science. For instance, these amplifiers allow us to communicate with distant …

This letter presents a 67–116-GHz low-noise amplifier (LNA) module with state-of-the-art
cryogenic noise performance. The LNA is based on a monolithic microwave integrated …

Improvements in the noise temperature of cryogenic field-effect transistors (FET's) and, later,
heterostructure field-effect transistors (HFET's) over the last several decades have been …

The microwave frequency range is home to a large amount of cosmologically crucial signals
including the cosmic microwave background, emission from high redshift galaxies, and …

A high-performance low-loss high-reflection-loss compact double-ridged waveguide
orthomode transducer (OMT) for the 67–116 GHz band has been designed, fabricated, and …

This paper demonstrates a set of wideband state-of-the-art low-noise amplifier (LNA)
monolithic microwave integrated circuits (MMICs) ranging from 2 to 190 GHz. All MMICs are …

We have developed a sideband separating receiver module for the W band (75-110 GHz)
that has been designed with a scalable and compact architecture allowing easy integration …

In this paper we present the design, modeling, and on-wafer measurement results of an ultra-
wideband cryogenically cooled SiGe low-noise amplifier covering at least 71 to 116 GHz …

In this paper, the room-temperature and cryogenic performance of two low-noise amplifier
(LNA) modules in the frequency range from 70 to 116 GHz is presented and analyzed. The …