Thin film partial reflectors for generating contrast in millimeter wave images

Jeffrey Barber; Peter R. Smith; Lindsey Gray; Angel Yam; Joseph Greca; Kevin Yam; James C. Weatherall; Duane Karns; Barry T. Smith

doi:10.1117/12.2306335

11 May 2018 Thin film partial reflectors for generating contrast in millimeter wave images

Jeffrey Barber, Peter R. Smith, Lindsey Gray, Angel Yam, Joseph Greca, Kevin Yam, James C. Weatherall, Duane Karns, Barry T. Smith

Author Affiliations +

Proceedings Volume 10634, Passive and Active Millimeter-Wave Imaging XXI; 106340I (2018) https://doi.org/10.1117/12.2306335
Event: SPIE Defense + Security, 2018, Orlando, FL, United States

Abstract

Depth resolution and contrast (grayscale) resolution test objects have been proposed for incorporation into an ANSI standard for image quality of active millimeter wave (MMW) imagers for screening humans. A design for a depth resolution target has required the need for a thin film to generate a reflection while allowing for metal targets behind it to be visible to MMW imagers. Materials to accomplish this task have been identified, essentially acting as a millimeter wave beam splitter. Images obtained with a wide-bandwidth MMW imaging system are discussed. Additionally, by altering the resistivity of the thin film, the reflection coefficient of the film changes, allowing these films to be used as a contrast phantom for the testing of millimeter wave imaging systems. Measurements using laboratory millimeter wave systems are in good agreement with theory, and an image collected with a commercially-available MMW imaging systems is presented.

Citation Download Citation

Jeffrey Barber, Peter R. Smith, Lindsey Gray, Angel Yam, Joseph Greca, Kevin Yam, James C. Weatherall, Duane Karns, and Barry T. Smith "Thin film partial reflectors for generating contrast in millimeter wave images", Proc. SPIE 10634, Passive and Active Millimeter-Wave Imaging XXI, 106340I (11 May 2018); https://doi.org/10.1117/12.2306335

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

Includes PDF, HTML & Video, when available