NDLI: Highly integrated switching calibration front-end MMIC with active loads for w-band radiometers

Content Provider	IEEE Xplore Digital Library
Author	Weissbrodt, E. Leuther, A. Schlechtweg, M. Kallfass, I. Ambacher, O.
Copyright Year	2012
Description	Author affiliation: Fraunhofer Institute for Applied Solid State Physics (IAF), Tullastrasse 72, D-79108 Freiburg, Germany (Weissbrodt, E.; Leuther, A.; Schlechtweg, M.; Kallfass, I.; Ambacher, O.)
Abstract	A millimeter-wave monolithic integrated circuit (MMIC) consisting of a W-band (75 – 100 GHz) single-pole-five-throw (SP5T) switch and multiple internal active and passive loads for radiometer calibration was designed and manufactured in a low noise 50 nm GaAs mHEMT technology. This highly compact and integrated front-end device for radiometer systems is capable of fast ultra-fast switching between two identical input ports (e.g. for polarimetric applications) and three internal calibration references. It allows an accurate multi-load calibration with noise temperatures between 220 K and 1750 K at the output of the device. Compared to conventional calibration methods this marks a substantial advantage in terms of size, mass, power consumption, complexity and repetition rate.
Starting Page	203
Ending Page	206
File Size	518351
Page Count	4
File Format	PDF
ISBN	9781467323024
e-ISBN	9782874870286
e-ISBN	9782874870262
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-29
Publisher Place	Netherlands
Access Restriction	Subscribed
Rights Holder	European Microwave Assoc
Subject Keyword	Radiometers Noise AHL Switches SCFE active loads ACL Calibration GaAs Temperature measurement mHEMT radiometer FET-switch W-band MMICs SP5T Transistors calibration MMIC
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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