NDLI: Micromachined millimeter- and submillimeter-wave sis heterodyne receivers for remote sensing

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Micromachined millimeter- and submillimeter-wave sis heterodyne receivers for remote sensing

Content Provider	NASA Technical Reports Server (NTRS)
Author	Hu, Qing
Copyright Year	1997
Description	This is a progress report for the second year of a NASA-sponsored project. The report discusses the design and fabrication of micromachined Superconductor Insulator Superconductor (SIS) heterodyne receivers with integrated tuning elements. These receivers tune out the functional capacitance at desired frequencies, resulting in less noise, lower temperatures and broader bandwidths. The report also discusses the design and fabrication of the first monolithic 3x3 focal-plane arrays for a frequency range of 170-210 GHz. Also addressed is the construction of a 9-channel bias and read-out system, as well as the redesign of the IF connections to reduce cross talk between SIS junctions, which become significant a frequency of 1.5 GHz IF. Uniformity of the junction arrays were measured and antenna beam patterns of several array elements under operating conditions also were measured. Finally, video and heterodyne responses of our focal-plane arrays were measured as well. Attached is a paper on: 'Development of a 170-210 GHz 3x3 micromachined SIS imaging array'.
File Size	626880
Page Count	12
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19980001933
Archival Resource Key	ark:/13960/t4dn92w3h
Language	English
Publisher Date	1997-05-29
Access Restriction	Open
Subject Keyword	Earth Resources And Remote Sensing Sis Superconductors Display Devices Micromachining Superhigh Frequencies Imaging Techniques Microwave Frequencies Tunnel Junctions Noise Measurement Remote Sensing Spectroradiometers Microwave Imagery Millimeter Waves Bandwidth Submillimeter Waves Product Development Radio Receivers Arrays Antenna Radiation Patterns Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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