Beam-steering technologies for real-time passive millimeter-wave imaging

Andrew Robert Harvey; Roger Appleby; Paul M. Blanchard; Alain H. Greenaway

doi:10.1117/12.319406

21 August 1998 Beam-steering technologies for real-time passive millimeter-wave imaging

Andrew Robert Harvey, Roger Appleby, Paul M. Blanchard, Alain H. Greenaway

Author Affiliations +

Proceedings Volume 3378, Passive Millimeter-Wave Imaging Technology II; (1998) https://doi.org/10.1117/12.319406
Event: Aerospace/Defense Sensing and Controls, 1998, Orlando, FL, United States

Abstract

The long-term potential of terrestrial passive millimeter-wave imaging is contingent upon demonstrating real-time imaging with a system that can be conveniently integrated into a ship, land vehicle or aircraft. For small imagers with modest resolution, this can be readily achieved using fully-staring focal plane arrays, but as in the infrared, the high cost per pixel means that scanning (preferably electronic) of a smaller number of detectors, across the image is attractive. Aperture synthesis using sparse and filled arrays of antennas offers high sensitivity and resolution from a small number of antennas that can be conformal to vehicle shape, but requires complicated beam-forming technologies. Alternatively, electronic scanning can be accomplished by electronic modulation of a filled antenna. This discusses approaches and technology requirements for achieving electronic beam- steering.

Citation Download Citation

Andrew Robert Harvey, Roger Appleby, Paul M. Blanchard, and Alain H. Greenaway "Beam-steering technologies for real-time passive millimeter-wave imaging", Proc. SPIE 3378, Passive Millimeter-Wave Imaging Technology II, (21 August 1998); https://doi.org/10.1117/12.319406

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE