Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published March 2019 | Published
Book Section - Chapter Open

Ultra-Wideband Low Noise Amplifiers For The Next Generation Very Large Array

Abstract

We have implemented a single wideband receiver package that could cover the 8 to 48 GHz frequency range of the ngVLA. The current JVLA covers this frequency range employing five distinct receiver packages. We estimate that reducing the number of receiving systems required to cover the full frequency range should reduce operating costs. The receiver package we developed consists of a quad-ridge feed horn, low-noise amplifiers (LNA), and a down-converter to analog intermediate frequencies. Both the feedhorn and the LNA are cryogenically cooled. On the LNA front we pursued two 8–48 GHz MMIC designs, the first using 70-nm gallium arsenide, metamorphic high-electron-mobility-transistors (HEMT), and the second using 35-nm indium phosphide HEMTs. In this paper, we report the measured gain and noise temperatures of these LNAs.

Additional Information

© 2019 IEEE. Copyright 2018 California Institute of Technology. U.S. Government sponsorship acknowledged. The research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. Copyright 2018 California Institute of Technology. U.S. Government sponsorship acknowledged.

Attached Files

Published - 08742126.pdf

Files

08742126.pdf
Files (6.6 MB)
Name Size Download all
md5:e9e7383add5f93fafafa49ab57926f92
6.6 MB Preview Download

Additional details

Created:
August 19, 2023
Modified:
October 20, 2023