Two-dimensional fiber optic control of a wideband array transmitter

Paul J. Matthews; Michael Y. Frankel; Ronald D. Esman

doi:10.1117/12.257229

5 November 1996 Two-dimensional fiber optic control of a wideband array transmitter

Paul J. Matthews, Michael Y. Frankel, Ronald D. Esman

Proceedings Volume 2845, Radar Processing, Technology, and Applications; (1996) https://doi.org/10.1117/12.257229
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

We report on the first demonstration of a 2D, fiber-optic, true time-delay control system capable of squint-free steering of an ultrawideband array. The system is based on a novel fiber-optic prism technique with separate azimuth and elevation control stages. In this technique, high dispersion fiber is used to provide a wavelength-dependent time-delay between the rows and columns of the array. The fiber-optic control system was used to drive a 4 by 4 array of flared- notch elements. The system was tested in a compact radar range and 2D array patterns were obtained. The system demonstrated independent +/- 30 degrees elevation steering of a 4 by 4 array over a 6 to 18 GHz bandwidth with no observable squint. We believe this is the first demonstration of such a system. The design of the demonstrated system allows for transitioning to larger, real-world ultrawideband array transmitters.

Citation Download Citation

Paul J. Matthews, Michael Y. Frankel, and Ronald D. Esman "Two-dimensional fiber optic control of a wideband array transmitter", Proc. SPIE 2845, Radar Processing, Technology, and Applications, (5 November 1996); https://doi.org/10.1117/12.257229

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