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Proceedings Paper

Opto-VLSI-based broadband true-time delay generation for phased array beamforming
Author(s): Budi Juswardy; Feng Xiao; Kamal Alameh
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Paper 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.

Paper Details

Date Published: 27 October 2009
PDF: 7 pages
Proc. SPIE 7516, Photonics and Optoelectronics Meetings (POEM) 2009: Optoelectronic Devices and Integration, 75160G (27 October 2009); doi: 10.1117/12.843475
Show Author Affiliations
Budi Juswardy, Edith Cowan Univ. (Australia)
Feng Xiao, Edith Cowan Univ. (Australia)
Kamal Alameh, Edith Cowan Univ. (Australia)


Published in SPIE Proceedings Vol. 7516:
Photonics and Optoelectronics Meetings (POEM) 2009: Optoelectronic Devices and Integration
Zishen Zhao; Ray T. Chen; Yong Chen; Jinzhong Yu; Junqiang Sun; Weiwei Dong, Editor(s)

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