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System integration and radiation pattern measurements of a phased array antenna employing an integrated photonic beamformer for radio astronomy applications |
Applied Optics, Vol. 51, Issue 7, pp. 789-802 (2012)
http://dx.doi.org/10.1364/AO.51.000789
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Abstract
In this paper we describe the system integration and the experimental demonstration of a photonically beamformed four-element receiving array antenna for radio astronomy applications. To our knowledge, the work described here is the first demonstration of the squint-free, continuously tunable beamsteering capability offered by an integrated photonic beamformer based on optical ring resonator true-time-delay units, with measured radiation patterns. The integrated beamformer is realized in a low loss, complementary metal-oxide-semiconductor (CMOS) compatible optical waveguide technology. The measurements show a wideband, continuous beamsteering operation over a steering angle of 23.5 degrees and an instantaneous bandwidth of 500 MHz limited only by the measurement setup.
© 2012 Optical Society of America
OCIS Codes
(070.1170) Fourier optics and signal processing : Analog optical signal processing
(130.0130) Integrated optics : Integrated optics
(280.5110) Remote sensing and sensors : Phased-array radar
(060.5625) Fiber optics and optical communications : Radio frequency photonics
(070.5753) Fourier optics and signal processing : Resonators
(130.6622) Integrated optics : Subsystem integration and techniques
ToC Category:
Fiber Optics and Optical Communications
History
Original Manuscript: August 24, 2011
Revised Manuscript: November 28, 2011
Manuscript Accepted: November 28, 2011
Published: February 17, 2012
Citation
Maurizio Burla, Chris G. H. Roeloffzen, Leimeng Zhuang, David Marpaung, Muhammad Rezaul Khan, Peter Maat, Klaas Dijkstra, Arne Leinse, Marcel Hoekman, and René Heideman, "System integration and radiation pattern measurements of a phased array antenna employing an integrated photonic beamformer for radio astronomy applications," Appl. Opt. 51, 789-802 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-7-789
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