NDLI: Experiments on DOA-estimation and beamforming for 60 GHz smart antennas

Content Provider	IEEE Xplore Digital Library
Author	Choi, M.S. Grosskopf, G. Rohde, D. Kuhlow, B. Przyrembel, G. Ehlers, H.
Copyright Year	2003
Description	Author affiliation: Heinrich-Hertz-Inst. fur Nachrichtentech. Berlin GmbH, Germany (Choi, M.S.; Grosskopf, G.; Rohde, D.; Kuhlow, B.; Przyrembel, G.; Ehlers, H.)
Abstract	In this paper we present experimental results on direction of arrival (DOA) estimation and optical beamforming. In this first part of the paper we describe the experimental set-up for the antenna calibration and DOA estimation at 60 GHz. A pilot signal generator and an array receiver are implemented. The feasibility of the DOA estimation is evaluated for real conditions. The experimental results show that the array calibration works reliable and there is a good agreement between simulation and experiment in the DOA estimation. In the second part, we present the experimental results on beamforming, which is performed using optical millimeter-wave generation technique. The millimeter-wave signals are generated by heterodyning the signals of two lasers. Beamforming is accomplished by a newly developed SiO/sub 2//Si beamforming network, which enables individual control of amplitudes and phases of millimeter-wave signals feeding a planar 1/spl times/4 array antenna by means of the maximum directivity beamformer algorithm. Farfield measurements show good agreement between theory and experiment.
Starting Page	1041
Ending Page	1045
File Size	423923
Page Count	5
File Format	PDF
ISBN	0780377575
ISSN	10903038
DOI	10.1109/VETECS.2003.1207785
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-04-22
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Array signal processing Direction of arrival estimation Optical receivers Millimeter wave technology Optical mixing Calibration Signal generators Phased arrays Optical beams Laser theory
Content Type	Text
Resource Type	Article

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