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Coherent receiver components for high frequency astrophysics applications

Author: Patricia Elaine Voll Larkoski; Sarah Church; Vahe Petrosian; Blas Cabrera; Stanford University. Department of Applied Physics.
Publisher: 2013.
Dissertation: Ph. D. Stanford University 2013
Edition/Format:   Thesis/dissertation : Document : Thesis/dissertation : eBook   Computer File : English
Database:WorldCat
Summary:
Coherent receivers for electromagnetic radiation in the frequency band from 120 - 180 GHz and higher have many important applications for ground-based astronomy and millimeter-wave imaging, such as security screening and imaging from aircraft. This thesis reviews the development and testing of new receiver components that have enabled the design of compact and mass-producible receiver modules for instruments that  Read more...
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Details

Material Type: Document, Thesis/dissertation, Internet resource
Document Type: Internet Resource, Computer File
All Authors / Contributors: Patricia Elaine Voll Larkoski; Sarah Church; Vahe Petrosian; Blas Cabrera; Stanford University. Department of Applied Physics.
OCLC Number: 865062677
Notes: Submitted to the Department of Applied Physics.
Description: 1 online resource
Responsibility: Patricia Elaine Voll Larkoski.

Abstract:

Coherent receivers for electromagnetic radiation in the frequency band from 120 - 180 GHz and higher have many important applications for ground-based astronomy and millimeter-wave imaging, such as security screening and imaging from aircraft. This thesis reviews the development and testing of new receiver components that have enabled the design of compact and mass-producible receiver modules for instruments that require high sensitivity in this frequency band. A genetic algorithm was used to optimize a smooth-walled feedhorn antenna, which will be presented along with analysis of feedhorn efficiencies. Record low noise measurements for Monolithic Millimeter-wave Integrated Circuit (MMIC) Low Noise Amplifiers (LNAs) in this band, made possible by recent advances in High Electron Mobility Transistors (HEMTs), are also included. These devices are now being incorporated into complete receiver modules that will be used in instruments for astrophysics applications.

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Primary Entity

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