Cryogenic Probing of mm-Wave MMIC LNAs for Large Focal-Plane Arrays in Radio-Astronomy
Abstract
In this paper, we demonstrate non-destructive cryogenic probing of monolithic microwave integrated circuit (MMIC) amplifiers at W-band and discuss the implications for the development of large-format focal plane arrays for radio astronomy. Using a purpose-built cryogenic probe station to measure S-parameters and noise temperature of MMIC low-noise amplifiers (LNAs), an order of magnitude increase in efficiency can be achieved when compared with measurements on individually packaged amplifiers. The amplifiers are tested non-destructively, which enables selection based on cryogenic noise and gain; this is crucial for the development of highly-integrated miniaturized receivers for focal plane arrays, such as those used for the measurement of the cosmic microwave background (CMB) polarization and future arrays aimed at probing the epoch of reionization (EoR).
Additional Information
© 2014 EuMA. The authors would like to thank Mary Soria, Heather Owen, James Parker and Doug Warden for their technical assistance in many aspects of this work. The project has been largely funded by the NASA APRA program and the Keck Institute for Space Studies (KISS).Additional details
- Eprint ID
- 53619
- Resolver ID
- CaltechAUTHORS:20150113-100525149
- NASA
- Keck Institute for Space Studies (KISS)
- Created
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2015-01-13Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field
- Caltech groups
- Keck Institute for Space Studies