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Low-Power Radio-Frequency SiGe Analog-to-Digital ConverterA low-power, radio-frequency analog-to-digital converter (RF-ADC) for soil moisture remote sensing was designed and fabricated. The RF-ADC is the fundamental component used in a direct-sampling digital radiometer, which is proposed to minimize the power dissipation and system complexity for synthetic thinned array radiometer. The circuit was implemented using 0.8 micron 35-GHz silicon germanium BiCMOS technology. The total power dissipation was 222 mW.
Document ID
20030095915
Acquisition Source
Goddard Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Thompson, Willie L, II (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hall, Wesley G. (Morgan State Univ. Baltimore, MD, United States)
Piepmeier, Jeffrey R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Johnson-Bey, Charles T. (Morgan State Univ. Baltimore, MD, United States)
Date Acquired
August 21, 2013
Publication Date
May 2, 2003
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
IGARSS2003-03.1309
Funding Number(s)
OTHER: 258-70-20
Distribution Limits
Public
Copyright
Public Use Permitted.
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