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  • Get ready for EuCAP 2014 | TICRA
    Contoured Beam Reflectors Mario Junior Mencagli University of Siena Italy Stig Sørensen TICRA Denmark Enrica Martini University of Siena Italy Cecilia Cappellin TICRA Denmark Rolf Jørgensen Ticra Denmark Min Zhou TICRA Denmark Marco Sabbadini Esa Estec The Netherlands Stefano Maci University of Siena Italy TUE 4 122 Exchange of Geometrical Data for E M Modelling Francesca Mioc Consultant Switzerland Francesca Rossi University of Padova ESA ESTEC The Netherlands Marco Sabbadini Esa Estec The Netherlands Poul Erik Frandsen TICRA Denmark Wednesday 09 20 Design and Optimization of Multi Faceted Reflectarrays for Satellite Applications Min Zhou TICRA Denmark Stig Sørensen TICRA Denmark Peter Meincke TICRA Denmark Erik Jørgensen TICRA Denmark 14 00 Room Europe 2 TICRA Workshop New EM Modelling Capabilities in TICRA s GRASP software Thursday 10 20 Field Reconstruction and Estimation of the Antenna Support Structure Effect on the Measurement Uncertainty of the BTS1940 Antenna Cecilia Cappellin TICRA Denmark Sergey Pivnenko Technical University of Denmark Denmark 12 00 The Planck Mission and Its Optical System Jan Tauber European Space Agency The Netherlands Per Nielsen TICRA Denmark Arturo Martin Polegre European Space Agency The Netherlands 14 00 Room Europe 2 TICRA Workshop Reflector Antenna Analysis using GRASP THUR 2 56 Efficient and Accurate Modeling of Electrically Large Dielectric Lens Antennas Using Full Wave Analysis Stig Sørensen TICRA Denmark Min Zhou TICRA Denmark Peter Meincke TICRA Denmark Niall Tynan National University of Ireland Maynooth Ireland Marcin Gradziel National University of Ireland Maynooth Ireland 17 00 Generalized Admittance Matrix Method for Fast Full Wave Analysis of Integrated Lens Antennas Erik Jørgensen TICRA Denmark Peter Meincke TICRA Denmark Andrea Neto Delft University of Technology The Netherlands Nuria LLombart Delft University of Technology The Netherlands Friday 11 20 Improved Multilevel Fast Multipole Method for Higher Order Discretizations Oscar Borries Technical University of Denmark TICRA Denmark

    Original URL path: http://www.ticra.com/news/get-ready-eucap-2014 (2016-05-01)
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  • GRASP 10.3 released! | TICRA
    number of useful post processing features are also included Speed up the design process by i mporting results from other sources other GRASP projects measurements other analysis programs and compare with your current project data Add FCC and ITU sidelobe templates to your pattern cuts to quickly see your design s potential Get even greater confidence in your reflector strut analysis by using the new full wave based analysis method

    Original URL path: http://www.ticra.com/news/grasp-103-released (2016-05-01)
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  • TICRA offers 5 travel grants of 1500 EURO each to students participating in the 2014 EuCap in den Haag | TICRA
    1 500 towards travel expenses accommodation and conference fee Formal requirements are that the applicant is a PhD student or has obtained the PhD in 2014 is affiliated with an educational institution is under 35 years of age submits a full paper 3 5 pages through the EDAS conference management system before the deadline set by the EuCap organizing committee personally presents the paper at EuCAP is present at the

    Original URL path: http://www.ticra.com/news/ticra-offers-5-travel-grants-1500-euro-each-students-participating-2014-eucap-den-haag (2016-05-01)
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  • Frank Jensen receives the AMTA Distinguished Achievement Award | TICRA
    Ph D in 1970 under supervision of professor Jesper Hansen Electromagnetic Systems DTU during which he derived a theoretical formulation for the spherical near field far field transformation with full probe correction He joined TICRA in 1972 and succeeded in winning a contract with the European Space Agency ESA under which the first practical implementation of the spherical method was established in 1975 Several contracts followed in which DTU served as main contractor and established the DTU ESA Spherical Near Field Antenna Test Facility During this time Frank developed dual polarized near field probes of unsurpassed high standard He recognized that such probes could not be calibrated satisfactorily unless the probe mounting was hidden by absorbers or by a scattering controlling skirt and that these additional components needed to be an integral part of the probe for calibration He has made significant contributions to the analyses of surface deviations and serration designs for large compact range reflectors as well as scattering in the walls of the range Frank has also derived corrections for positioner sag due to gravity effects when rotating heavy antennas under test He has also been involved in the implementation of GTD Uniform Geometrical Theory of Diffraction

    Original URL path: http://www.ticra.com/news/frank-jensen-receives-amta-distinguished-achievement-award (2016-05-01)
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  • AMTA 2013 6-11 October | TICRA
    Booth no 304 and listen to these papers Monday morning 9 42 A13 0014 A Detailed PO PTD GRASP Simulation Model for Compensated Compact Range Analysis with Arbitrarily Shaped Serrations Carsten Schmidt Alexander Geise Josef Migl HansJürgen Steiner Astrium GmbH Hans Henrik Viskum TICRA Wednesday afternoon 2 24 A13 0109 Detailed Diagnostics of the BIOMASS Feed Array Prototype Cecilia Capellin Knud Pontoppidan TICRA Sergey Pivnenko Technical University of Denmark Moreover

    Original URL path: http://www.ticra.com/news/amta-2013-6-11-october (2016-05-01)
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  • 35th ESA Antenna Workshop | TICRA
    probes spherical near field far field transformation software design and analysis of compact ranges to most recently a diagnostics tool DIATOOL enabling 3D reconstruction of the sources of a measured field This year we are co authors on three papers Array Diagnostics Spatial Resolution and Filtering of Undesired Radiation with the 3D Reconstruction Algorithm Development Of Refractive Telescope Systems For Future Cosmic Microwave Background Polarimetry Satellites and Modelling and Experimental

    Original URL path: http://www.ticra.com/news/35th-esa-antenna-workshop (2016-05-01)
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  • PIERS 2013, Stockholm | TICRA
    Stockholm The 34th PIERS will be held between August 12 15 in Stockholm Sweden TICRA is represented by Dr Erik Jørgensen where he will present the paper New Fast Modeling Algorithms in Commercial Software Tools for High gain Antennas on Monday 12 8 at 16 20 in the session Industrial Forum on CEM Computational Electromagnetics Software In this talk some of the newest developments that have been carried out at

    Original URL path: http://www.ticra.com/news/piers-2013-stockholm (2016-05-01)
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  • GRASP 10.2 released | TICRA
    over for example it is easy to move the feeds accordingly by just changing one parameter feed spacing If a different paraboloid is introduced it is also easy to change Petzval s surface as it incorporates the paraboloid s focal length by means of a variable focal Back to top Absolute dimensions in Wizard In earlier versions the size of the reflector aperture diameter was given by the user when designing a system in the Wizard All other geometrical parameters e g focal length inter focal distance of sub reflector and others could be specified relative to the diameter as this is a common way to specify antenna systems Many users have missed the alternative to specify these numbers as absolute rather than relative values since they often are given for example the focal length in this way Their need is now served Back to top Fast BoR MoM solver The 3D MoM solver optional MoM add on is supplemented by a BoR MoM solver that can utilize a scatterer s rotational symmetry and speed up the Method of Moments computations dramatically The solver uses the same concepts as known from the 3D solver in terms of polynomial current expansion functions and curved surface patches an essential pre requisite for efficient computation on curved bodies As example consider the reflector system above It is a so called ring focus antenna which is rotationally symmetric These types of systems are advantageous in that they reduce the unwanted effect of sub reflector blockage however in the example shown the feed is moved away from the focus and there will therefore be a higher degree of multiple scattering between the sub and the main reflector The antenna can be analyzed with the standard Physical Optics tools in GRASP but the analysis will require

    Original URL path: http://www.ticra.com/news/grasp-102-released (2016-05-01)
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