Integrated microphotonic broadband smart antenna beamformer

A novel architecture for a microphotonic beamformer that generates variable RF true-time delays to steer broadband nulls for smart antennas, is presented. The beamformer employs a Vertical Cavity Surface Emitting Laser (VCSEL) array, photoreceiver array, and micro-optics integrated on an optical sub...

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Bibliographic Details
Published inProceedings. DELTA 2004. Second IEEE International Workshop on Electronic Design, Test and Applications pp. 208 - 212
Main Authors Alameh, K.E., Eshraghian, K., Ahderom, S., Raisi, M., Mike Myung-Ok Lee, Michalzik, R.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2004
Subjects
Bandwidth
Broadband antennas
Degradation
Delay
Integrated optics
Optical arrays
Radio frequency
Stimulated emission
Surface emitting lasers
Vertical cavity surface emitting lasers
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Summary:A novel architecture for a microphotonic beamformer that generates variable RF true-time delays to steer broadband nulls for smart antennas, is presented. The beamformer employs a Vertical Cavity Surface Emitting Laser (VCSEL) array, photoreceiver array, and micro-optics integrated on an optical substrate through which many delayed versions of the RF are generated, amplified and combined to synthesise broadband spatial nulls that can adoptively be steered. Results show that a 6-element MicroPhotonic broadband smart antenna beamformer operating in the 5-GHz band can generate 5 deep nulls with less than 2 dB degradation in main beam gain, and less than 1.5 beam squint over 1 GHz bandwidth, and for less than 2.5% of maximum delay time fluctuations, null depths of more than 40 dB can be obtained.
ISBN:9780769520810
0769520812
DOI:10.1109/DELTA.2004.10028