Title :
Maximum directivity beam-former at 60 GHz with optical feeder
Author :
Grosskopf, Gerd ; Eggemann, R. ; Ehlers, Holger ; Kortke, A. ; Kuhlow, Berndt ; Przyrembel, Georges ; Rohde, Detlef ; Zinal, S.
Author_Institution :
Heinrich-Hertz-Inst., Fraunhofer Inst. fur Nachrichtentech., Berlin, Germany
Abstract :
We present an optically controlled 60 GHz array antenna which may be used as a smart antenna in an envisaged broadband mobile communication system. The desired field patterns of the antenna were synthesized using the maximum directivity beam-forming algorithm which enables an optimum radio link to a selected mobile terminal to be created while the signals of other terminals are suppressed by the s of the antenna´s field distribution. The 60 GHz signals were generated by optically heterodyning the signals of two laser diodes. The field distribution of the antenna was formed by a silica based photonic beam-forming network. The experimentally obtained data confirmed the calculated field patterns.
Keywords :
adaptive antenna arrays; antenna feeds; antenna phased arrays; antenna radiation patterns; array signal processing; directive antennas; microwave photonics; millimetre wave antenna arrays; mobile radio; optical communication equipment; 60 GHz; antenna field patterns; array antenna; broadband mobile communication system; laser diodes; maximum directivity beamforming algorithm; microwave photonics; optical feeder; optical heterodyning; phased-array antennas; photonic beamforming network; smart antenna; Antenna arrays; Broadband antennas; Broadband communication; Communication system control; Control systems; Mobile antennas; Mobile communication; Optical arrays; Optical control; Optical mixing;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2003.818785
