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Record 1 of 21072
High Frequency PIN-Diode Switches for Radiometer Applications
External Online Source: hdl:2014/43498
Author and Affiliation:
Montes, Oliver(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Dawson, Douglas E.(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Kangaslahti, Pekka(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Reising, Steven C.(Colorado State Univ., Microwave Systems Lab, Fort Collins, CO, United States)
Abstract: Internally calibrated radiometers are needed for ocean topography and other missions. Typically internal calibration is achieved with Dicke switching as one of the techniques. We have developed high frequency single-pole double-throw (SPDT) switches in the form of monolithic microwave integrated circuits (MMIC) that can be easily integrated into Dicke switched radiometers that utilize microstrip technology. In particular, the switches we developed can be used for a radiometer such as the one proposed for the Surface Water and Ocean Topography (SWOT) Satellite Mission whose three channels at 92, 130, and 166 GHz would allow for wet-tropospheric path delay correction near coastal zones and over land. This feat is not possible with the current Jason-class radiometers due to their lower frequency signal measurement and thus lower resolution. The MMIC chips were fabricated at NGST using their InP PIN diode process and measured at JPL using high frequency test equipment. Measurement and simulation results will be presented.
Publication Date: Jun 22, 2011
Document ID:
20150005843
(Acquired Apr 20, 2015)
Subject Category: ELECTRONICS AND ELECTRICAL ENGINEERING
Document Type: Conference Paper
Meeting Information: Earth Science Technology Forum; 21-23 Jun. 2011; Pasadena, CA; United States
Meeting Sponsor: Jet Propulsion Lab., California Inst. of Tech.; Pasadena, CA, United States
Financial Sponsor: Jet Propulsion Lab., California Inst. of Tech.; Pasadena, CA, United States
Description: 5p; In English; Original contains color and black and white illustrations
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: DICKE RADIOMETERS; HIGH FREQUENCIES; MICROWAVE CIRCUITS; INTEGRATED CIRCUITS; CALIBRATING; CHIPS; TOPOGRAPHY; SIGNAL MEASUREMENT; RADIOMETERS; PINS
Other Descriptors: DICKE SWITCHED RADIOMETER,; MICROWAVE RADIOMETRY; MONOLITHIC MICROWAVE INTEGRATED CIRCUIT (MMIC); INDIUM PHOSPHIDE (INP),; PIN-DIODE
Availability Source: Other Sources
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