Title

Infrared Phased-Array Sensor

Keywords

Infrared detectors; Phased arrays

Abstract

Metal-oxide-metal (MOM) tunnel diode detectors when integrated with phased-array antennas provide determination of the angle of arrival and degree of coherence of received infrared radiation. Angle-of-arrival measurements are made with a pair of dipole antennas coupled to a MOM diode through a coplanar strip transmission line. The direction of maximum angular response is altered by varying the position of the MOM diode along the transmission line connecting the antenna elements. Phased-array antennas can also be used to measure the degree of coherence of a partially coherent infrared field. With a two-element array, the degree of coherence is a measure of the correlation of electric fields received by the antennas as a function of the element separation. Antenna-coupled MOM diode devices are fabricated using electron beam lithography and thin-film deposition through a resist shadow mask. Measurements at 10.6 μm are substantiated by electromagnetic simulations and compared to analytic results. © 2011 SPIE.

Publication Date

9-26-2011

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

8012

Number of Pages

-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.883299

Socpus ID

80052992651 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/80052992651

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