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 …

Since the conception of radio astronomy [1], researchers have been striving to develop a"
zero-noise" broadband receiver. Although this goal has remained elusive, the pursuit of it …

This paper presents a 2 GHz low noise amplifier (LNA) implemented in 180 nm
complementary metal oxide semiconductor (CMOS) technology designed for cryogenic …

A 0.1-3 GHz integrated cryogenic LNA exploiting SiGe HBT has been designed and
implemented. The cryogenic performance of the HBT technology is investigated and a bias …

A broadband differential-MMIC low-noise amplifier (DLNA) using metamorphic high-electron-
mobility transistors of 70 nm in Gallium Arsenide (70 nm GaAs mHEMT technology) is …

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 …

In this paper, the cryogenic noise performance of the TowerJazz SBC18H3 technology is
studied. First, cryogenic small-signal noise models are developed for a SiGe HBT from this …

Reflector-based radio telescopes are used as tools for observations in both radio astronomy
and space geodesy. To observe the weak sources in space, highly sensitive receivers …

The pressing demand for mm-wave cryogenic radio astronomy receivers with increasing
instantaneous bandwidth has spurred interest in more complex intermediate frequency …

This paper demonstrates a step-by-step process of using a cold-termination method for
measuring noise parameters of a cryogenically cooled low-noise amplifier (cLNA). To …