Title :
Photonic 60-GHz maximum directivity beam former for smart antennas in mobile broad-band communications
Author :
Grosskopf, G. ; Eggemann, R. ; Zinal, S. ; Kuhlow, B. ; Przyrembel, G. ; Rohde, D. ; Kortke, A. ; Ehlers, H.
Author_Institution :
Heinrich-Hertz-Inst. fur Nachrichtentech. Berlin GmbH, Germany
Abstract :
Experiments are described using a photonic beam former to control a 60-GHz smart antenna. The 60-GHz signals are generated by optical heterodyning the waves of two laser diodes. Beam forming is achieved by new photonic planar lightwave circuits in silica technology. The beam former enables individual weighting of the millimeter-wave signals feeding the antenna elements. The required weights for a desired field distribution are calculated using the maximum directivity beam-forming algorithm.
Keywords :
antenna feeds; antenna phased arrays; heterodyne detection; integrated optoelectronics; microwave photonics; millimetre wave antenna arrays; mobile communication; semiconductor lasers; 60 GHz; SiO/sub 2/; antenna feeding; beam former; field distribution; laser diodes; maximum directivity beam-forming algorithm; millimeter-wave signals; mobile broad-band communications; mobile communication; optical heterodyning; photonic 60-GHz maximum directivity beam former; photonic planar lightwave circuits; silica technology; smart antennas; Broadband communication; Communication system control; Diode lasers; Laser beams; Millimeter wave technology; Mobile antennas; Mobile communication; Optical control; Optical mixing; Signal generators;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.1022007
