An optical beam former for smart antennas in mobile broadband communication
Source: International Journal of Mobile Communications, Volume 7, Number 6, 22 May 2009 , pp. 683-694(12)
Publisher: Inderscience Publishers
Abstract:The design and simulation of a Micro Electro Mechanical Systems (MEMS)-based Optical Signal Processing (OSP) beam former for cellular network base stations are reported in this paper. The modulated optical signal destined for a mobile terminal is split into eight equal-intensity signals. Each signal is weighted by controlling the phase and amplitude using a pair of micromirrors driven by electrostatic comb drive actuators. The processed optical signal is heterodyned with a phase-locked local optical signal. The resulting weighted microwave signal is then fed to the corresponding element of the 1 × 8 antenna array. The radiation patterns of the proposed multibeam-forming network are simulated using MATLAB and SIMULINK.
Document Type: Research article
Affiliations: 1: Department of ECE, Chettinadu College of Engineering and Technology, Karur 639114, India. 2: Department of ECE, JJ College of Engineering and Technology, Trichy 620009, India. 3: Department of ECE, Mookambigai College of Engineering, Trichy 622 502, India
Publication date: 2009-05-22
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