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  • Design of Dual-Polarized Contoured Beam Reflectarrays with Cross-Polar and Sidelobe Suppression | TICRA
    Beam Reflectarrays with Cross Polar and Sidelobe Suppression Abstract An efficient power pattern synthesis of contoured beam reflectarrays is presented Using the presented synthesis technique an offset dual polarized contoured beam reflectarray to cover an European region with cross polar and sidelobe suppression has been designed Simulations show that the presented technique allows the cross polar and the sidelobe level to be effectively suppressed in given regions Available on IEEEXPLORE

    Original URL path: http://www.ticra.com/papers/design-dual-polarized-contoured-beam-reflectarrays-cross-polar-and-sidelobe-suppression (2016-05-01)
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  • Design and Analysis of Printed Reflectarrays with Irregularly Positioned Array Elements | TICRA
    LP and the minimax optimization algorithm has been implemented The analysis accuracy of the LP approach for irregular reflectarrays is established by comparisons with full wave Method of Moments solutions It is demonstrated that the LP approach is very accurate and can be used to analyze and optimize irregular reflectarrays Two contoured beam reflectarrays based on a regular and an irregular layout generating the same contoured beam pattern to cover

    Original URL path: http://www.ticra.com/papers/design-and-analysis-printed-reflectarrays-irregularly-positioned-array-elements (2016-05-01)
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  • Overview of the Latest Developments in the Electromagnetic Data Exchange | TICRA
    of the Latest Developments in the Electromagnetic Data Exchange Abstract 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 of the European Association on Antennas and Propagation EurAAP Recent developments are discussed together with the formulation of the Field Data Dictionary in the DDL language An

    Original URL path: http://www.ticra.com/papers/overview-latest-developments-electromagnetic-data-exchange (2016-05-01)
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  • Antenna Diagnostics on Planar Arrays Using a 3D Source Reconstruction Technique and Spherical Near-Field Measurements | TICRA
    In this paper we apply a recently developed 3D source reconstruction algorithm to perform antenna diagnostics on a planar array configuration The test case is a planar X band slot array measured in a spherical near field facility and two slots were intentionally covered during the measurement campaign to test the performance of the algorithm These measured data have previously been analyzed using two different methods for planar back projection

    Original URL path: http://www.ticra.com/papers/antenna-diagnostics-planar-arrays-using-3d-source-reconstruction-technique-and-spherical-near (2016-05-01)
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  • Analysis of reflectarrays using field symmetries | TICRA
    to analyze reflectarrays with rectangular patches is proposed While the standard procedure has been to calculate the electric currents on the patches using e g a periodic Green s function or a Method of Moments approach the present method calculates the magnetic currents in the gaps between the patches and subsequently determines the radiated field using Love s equivalence theorem Since the complete analysis can be expressed on closed analytical

    Original URL path: http://www.ticra.com/papers/analysis-reflectarrays-using-field-symmetries-0 (2016-05-01)
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  • Recent Developments and Challenges for Reflector Antenna EM-Modelling | TICRA
    Developments and Challenges for Reflector Antenna EM Modelling Abstract This paper concerns the EM modelling of high accuracy reflector antenna systems and in particular of reflectors for space antenna systems Recent modelling developments are exemplified ranging from general software enhancements to meet customer needs over specific developments on a particular demanding project to new research projects In addition challenges for the next generation of reflector antenna EM modelling tools are

    Original URL path: http://www.ticra.com/papers/recent-developments-and-challenges-reflector-antenna-em-modelling (2016-05-01)
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  • Processing of Measured Fields Using Advanced Inverse Method of Moments Algorithm | TICRA
    as well as a very noise robust solution algorithm was presented at last year s ESA workshop The fundamental properties of the algorithm including quantitative results for the RMS error of the reconstructed surface currents were illustrated using synthetic data with added noise In this paper we investigate the properties of an iterative variant of the algorithm and show practical results from applying the higher order algorithm to measured fields

    Original URL path: http://www.ticra.com/papers/processing-measured-fields-using-advanced-inverse-method-moments-algorithm (2016-05-01)
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  • Papers | TICRA
    technique is employed in an investigation of the antenna system in the Microwave Imaging 04 Nov 2007 Application of the SWE to PWE Antenna Diagnostics Technique to an Offset Reflector Antenna Authors Cecilia Cappellin A new antenna diagnostics technique has been developed for the DTU ESA Spherical Near Field Antenna Test Facility at the Technical University of Denmark The technique is based on the 04 Nov 2007 Polarisation Dependent Scattering from the Serrations of Compact Ranges Authors Frank Jensen Serrations are often applied at the edges of compact range reflectors in order to reduce the scattering from the edges into the quiet zone At low frequencies the serrations show different 10 Jun 2007 Accurate analysis of a quasi optical network with a polarisation grid Authors Stig Busk Sørensen Hans Henrik Viskum Knud Pontoppidan In a quasi optical network the beams are usually focused and guided through the system by means of curved and planar mirrors Physical Optics PO is an accurate analysis tool for these elements 06 Nov 2006 The Influence of Finite Measurement Accuracy on the SWE to PWE Antenna Diagnostics Technique Authors Cecilia Cappellin A new antenna diagnostics technique based on the transformation of the spherical wave expansion SWE into the plane wave expansion PWE is proposed The new technique allows the recovery of the 06 Nov 2006 Combining GTD with Mom in Analysing the Scattering from the LICEF Antennas on the SMOS Satellite Authors Frank Jensen Knud Pontoppidan The present paper describes the determination of the scattering from the LICEF antenna elements on the SMOS satellite taking into account that the solar panels rotate during the flight of the 31 May 2005 A High Resolution Antenna Diagnostics Technique for Spherical Near Field Measurements Authors Cecilia Cappellin A new diagnostics technique for spherical near field antenna measurements that

    Original URL path: http://www.ticra.com/papers?page=9 (2016-05-01)
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