Infrared phased-array sensor

Brian A. Slovick; Jeffrey A. Bean; Lou A. Florence; Glenn D. Boreman

doi:10.1117/12.883299

20 May 2011 Infrared phased-array sensor

Brian A. Slovick, Jeffrey A. Bean, Lou A. Florence, Glenn D. Boreman

Proceedings Volume 8012, Infrared Technology and Applications XXXVII; 801218 (2011) https://doi.org/10.1117/12.883299
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

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.

Citation Download Citation

Brian A. Slovick, Jeffrey A. Bean, Lou A. Florence, and Glenn D. Boreman "Infrared phased-array sensor", Proc. SPIE 8012, Infrared Technology and Applications XXXVII, 801218 (20 May 2011); https://doi.org/10.1117/12.883299

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