University of Twente Student Theses


Simulation of a ring resonator-based optical beamformer system for phased-array receive antennas

Tijmes, M. (2009) Simulation of a ring resonator-based optical beamformer system for phased-array receive antennas.

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Abstract:This thesis describes the development of a simulator tool that can be used in the field of RF photonics. The development has been performed on the basis of a broadband, continuously tunable ring resonator-based optical beamformer system for phased array receive antennas. The application that is considered in this thesis is airborne satellite reception of digital television. An extensive description of the satellite receiver system is given, in which all the input-output relations of the individual components in the system are considered. It is shown that LabVIEW provides a good simulation environment for the application that is considered, which enables the specification of a suitable signal representation for both the electrical and optical domain. The simulator tool employs a fixed sample rate to circumvent the necessity for the laborious operations of up and downsampling. Based on the discrete-time representation that is introduced, the models are implemented in LabVIEW. The simulation model comprises a dynamical implementation of the optical beamforming network (OBFN), such that beamforming can be performed for any number of antenna elements (AEs). The settings that are required for the delay elements in the OBFN are automatically generated, based on the time delay difference between individual AEs. The satellite signals and sky noise are modeled as well, to be able to use a realistic context to test the system and do performance evaluations. The models of the individual components have been tested to match their theoretical responses. It is recommended to verify a full system simulation with theory, and later on compare with measurements.
Item Type:Essay (Master)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:54 computer science
Programme:Electrical Engineering MSc (60353)
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