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  • Poul Erik Frandsen | TICRA
    systems including contoured beam antennas He has detailed experience in the theory and application of optimization and parameter estimation techniques Mr Frandsen has been a member of the Board of Governors of TICRA since 1998 Papers 27 Mar 2012 New Modelling Capabilities in Commercial Software for High Gain Antennas Authors Erik Jørgensen Michael Lumholt Peter Meincke Min Zhou Stig Busk Sørensen Oscar Borries Cecilia Cappellin Poul Erik Frandsen This paper presents an overview of selected new modelling algorithms and capabilities in commercial software tools developed by TICRA A major new area is design and analysis of printed 27 Mar 2012 Overview of the Latest Developments in the Electromagnetic Data Exchange Authors Poul Erik Frandsen This paper presents an overview of the last developments in the Electromagnetic Data Exchange EDX The EDX is a core activity of the EAML team in collaboration with the Working Group on Software 11 Apr 2011 Feed Array Design in Presence of Strong Scattering From Reflectors Authors Poul Erik Frandsen Stig Busk Sørensen Full wave reflectors antenna modelling especially when fed by strongly interacting radiating structures e g arrays coming into the reflector field of view can be a difficult task for a single 11 Apr

    Original URL path: http://ticra.com/company/staff/poul-erik-frandsen (2016-05-01)
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  • Optimizing a Corrugated Horn for Telecommunication and Tracking Missions using a new flexible Horn Design Software | TICRA
    A new design approach and an associated software tool for conical corrugated horn antennas has been developed in a joint TICRA Thales Alenia Space ESA project The software is developed such that it supports the user in designing an optimized horn antenna in a natural way with stepwise refinements both in geometry in optimization parameters selection and in design requirements definition The techniques presented have been validated on a case

    Original URL path: http://ticra.com/papers/optimizing-corrugated-horn-telecommunication-and-tracking-missions-using-new-flexible-horn (2016-05-01)
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  • Multi-Moded Horns in Reflector Antenna Systems exemplified by the Planck Telescope | TICRA
    Scattering Multi Moded Horns in Reflector Antenna Systems exemplified by the Planck Telescope Abstract In this paper bolometric detectors applied in conjunction with reflector antenna feed horns that support multiple modes are studied As an example the preliminary design of the Planck telescope is used to calculate both the receiving pattern of the feed element as well as the receiving pattern of the telescope Publication 2001 IEEE AP S Symposium

    Original URL path: http://ticra.com/papers/multi-moded-horns-reflector-antenna-systems-exemplified-planck-telescope (2016-05-01)
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  • Efficient Analysis of Reflector Antennas using GRASP | TICRA
    The tool has furthermore found widespread use in the earth station segment and within the VSAT industry as well as for radio telescopes and quasi optical networks Such penetration has been made possible by constantly augmenting GRASP with new user defined features using the most accurate algorithms available The applied methods are bespoken to reflector antennas thereby ensuring efficiency in the computational models whilst maintaining a high level of generality

    Original URL path: http://ticra.com/papers/efficient-analysis-reflector-antennas-using-grasp-0 (2016-05-01)
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  • A systematic approach to the analysis of polarisation-sensitive reflector | TICRA
    Abstract The analysis of a polarisation sensitive reflector system consisting of two individual reflecting surfaces is described A procedure is given by which all the predictable scattering effects that will influence the far field radiation pattern are accounted for The problem of describing reflection and transmission phenomena from a non perfectly conducting surface when the incident field is not a plane wave is emphasised as this is the case when

    Original URL path: http://ticra.com/papers/systematic-approach-analysis-polarisation-sensitive-reflector (2016-05-01)
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  • Improved Compact Antenna Test Range (CATR) Performance by Using Spherical Angular Function (SAF) Deconvolution Method | TICRA
    of an Antenna Under Test AUT when it is illuminated by a uniform Plane Wave The requirement of a uniform Plane Wave illumination can be achieved by utilising a CATR The potentially low cross polarisation levels have made CATR one of the most suitable and accepted solution to test and verify the performance of spacecraft antennas However antennas with frequency reuse require very low levels of cross polarisation and so

    Original URL path: http://ticra.com/papers/improved-compact-antenna-test-range-catr-performance-using-spherical-angular-function-saf (2016-05-01)
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  • A Study on the Isolation Capability of Multi-Beam Reflector Antennas | TICRA
    dictated by the normal design rule The isolation comes at a price in coverage gain and it is shown that there exists an isolation level beyond which the reduction in gain is dramatic whereas up to this point the gain remains fairly stable The investigation is greatly facilitated by a new minimax optimization formulation in which the residuals are based on relative gain levels thus avoiding absolute gain and sidelobe

    Original URL path: http://ticra.com/papers/study-isolation-capability-multi-beam-reflector-antennas (2016-05-01)
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  • Fade Compensation in Antenna Optimization | TICRA
    Reflectarray Reflector antenna Scattering Fade Compensation in Antenna Optimization Abstract Contoured beam satellite antennas are usually designed by optimizing the antenna gain pattern over the desired coverage such that the minimum gain is maximized and the ripple throughout the region minimized Furthermore if frequency reuse is applied by means of spatial isolation between different regions the antenna gain pattern may also be kept below a specified level over adjacent coverages

    Original URL path: http://ticra.com/papers/fade-compensation-antenna-optimization (2016-05-01)
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