Title :
Optical true time-delay beamformer based on microwave photonics for phased array radar
Author :
Jung, Byung-Min ; Kim, Dong-Hyun ; Jeon, In-Pyung ; Shin, Sang-jin ; Kim, Hyoung-joo
Author_Institution :
R&D Div., Samsung Thales, Yongin, South Korea
Abstract :
Optical true time-delay beamformer for 10 GHz phased array radars with a unit time-delay of 12 ps is demonstrated and described. It is composed of an array of optical sources and fiber-optic delay lines with 2×2 optical switches. The most large time delay error for the optical TTD was measured to be less than 1.6 ps, corresponds to the radiation angle error of 2.1° from the main beam direction of 28.7°.
Keywords :
antenna phased arrays; array signal processing; delays; microwave photonics; optical fibres; optical switches; phased array radar; fiber-optic delay lines; frequency 10 GHz; microwave photonics; optical TTD; optical sources; optical switches; optical true time-delay beamformer; phased array radars; time 1.6 ps; time delay error; optical beamformer; phased array antenna; synthetic aperture radar; true time-delay;
Conference_Titel :
Synthetic Aperture Radar (APSAR), 2011 3rd International Asia-Pacific Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4577-1351-4
