Title

Antenna-coupled VOx thin-film microbolometer array

Authors

Authors

F. J. Gonzalez; M. Abdel-Rahman;G. D. Boreman

Abbreviated Journal Title

Microw. Opt. Technol. Lett.

Keywords

microbolometer; vanadium oxide; antenna-coupled detectors; Engineering, Electrical & Electronic; Optics

Abstract

Two-dimensional arrays of log-periodic antenna-coupled microbolometers were fabricated using VOx and Nb thin films as bolometric materials, which have different temperature coefficients of resistance. Noise, response, and angular characteristics of both types of microbolometer arrays were measured and compared. VOx-based devices presented a 4.5X better response and 5.5X better signal-to-noise ratio than Nb-based devices. Radiation patterns show that a further increase in response can be obtained by better matching the VOx bolometer to the antenna elements. (C) 2003 Wiley Periodicals, Inc.

Journal Title

Microwave and Optical Technology Letters

Volume

38

Issue/Number

3

Publication Date

1-1-2003

Document Type

Article

Language

English Estonian

First Page

235

Last Page

237

WOS Identifier

WOS:000183839900021

ISSN

0895-2477

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