Low-noise sub-millimeter wave local oscillators for ALMA

Author

Bryerton, Eric ; Saini, Kelly ; Muehlberg, Jim ; Vaselaar, Dustin ; Thacker, Dorsey

Author_Institution

Nat. Radio Astron. Obs., Charlottesville, VA, USA

fYear

2013

fDate

2-7 June 2013

Firstpage

1

Lastpage

3

Abstract

High signal-to-noise ratio sub-millimeter wave local oscillators (LOs) were developed and produced for the Atacama Large Millimeter Array (ALMA). They cover fractional bandwidths of 15-25% from 92 to 942 GHz. The LOs were designed and tested for high signal-to-noise ratio since they are used to drive single-ended mixers. Integrated millimeter-wave multi-chip MMIC modules, employing custom and commercial MMICs, were designed to yield the required power and SNR performance. 73 modules of the LO have been produced for each of the six bands to date, with two more bands currently under construction.

Keywords

MMIC; mixers (circuits); multichip modules; oscillators; signal processing; ALMA; Atacama large millimeter array; SNR performance; bandwidth 92 GHz to 942 GHz; commercial MMIC; high signal to noise ratio submillimeter wave local oscillators; integrated millimeter wave multichip MMIC modules; low noise submillimeter wave local oscillators; single ended mixers; Local oscillators; MMICs; Mixers; Power amplifiers; Receivers; Signal to noise ratio; ALMA; sub-millimeter wave;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest (IMS), 2013 IEEE MTT-S International

Conference_Location

Seattle, WA

ISSN

0149-645X

Print_ISBN

978-1-4673-6177-4

Type

conf

DOI

10.1109/MWSYM.2013.6697622

Filename

6697622