Optical true time-delay for two-dimensional phased array antennas using compact fiber grating prism

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2013,（10）
• 页码范围: 35-38
• 页数: 4页
• 语种: 英文
• DOI: 10.3788/COL201311.100606

摘要

A two-dimensional (2D) optical true-time delay (TTD) beam-forming system using a compact fiber grating prism (FGP) for a planar phased array antenna (PAA) is proposed.The optical beam-forming system mainly consists of a TTD unit based on the same compact FGP,one tunable laser for elevation beam steering,and a controlled wavelength converter for azimuth beam steering.A planar PAA using such 2D optical TTD unit has advantages such as compactness,low bandwidth requirement for tunable laser sources,and potential for large-scale system implementations.The proof-of-concept experiment results demonstrate the feasibility of the proposed scheme.