Opto-VLSI-based broadband true-time delay generation for phased array beamforming

Budi Juswardy; Feng Xiao; Kamal Alameh

doi:10.1117/12.843475

26 October 2009 Opto-VLSI-based broadband true-time delay generation for phased array beamforming

Budi Juswardy, Feng Xiao, Kamal Alameh

Proceedings Volume 7516, Photonics and Optoelectronics Meetings (POEM) 2009: Optoelectronic Devices and Integration; 75160G (2009) https://doi.org/10.1117/12.843475
Event: Photonics and Optoelectronics Meetings 2009, 2009, Wuhan, China

Abstract

Electronically controlled phased-array antennas can adaptively scan radiated beams in three-dimensional space without mechanically moving parts. While most of the research on phased-array antennas has been focusing on broadband beam steering less attention has been devoted to null steering. Broadband null steering requires a beamformer that can generate variable and frequency independent true time-delays (TTD). In this paper we propose and demonstrate the concept of an Opto-VLSI-based tunable true-time delay generation unit for adaptive null steering in phased array antennas, where arbitrary single or multiple true-time delays can simultaneously be synthesized. Simulated azimuth gain patterns for a 4- element antenna arrays is presented, and experimental results are shown, which demonstrate the principle of the proposed true-time delay unit.

Citation Download Citation

Budi Juswardy, Feng Xiao, and Kamal Alameh "Opto-VLSI-based broadband true-time delay generation for phased array beamforming", Proc. SPIE 7516, Photonics and Optoelectronics Meetings (POEM) 2009: Optoelectronic Devices and Integration, 75160G (26 October 2009); https://doi.org/10.1117/12.843475

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