TIB/UB Hannover - GBV · TIB/UB Hannover j ~ \s" '^' ... Session: EM Analysis Modelling of Antenna...

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Transcript of TIB/UB Hannover - GBV · TIB/UB Hannover j ~ \s" '^' ... Session: EM Analysis Modelling of Antenna...

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Table of Contents Page

Introduction

Opening Session

Recent Developments on Satellite Antennas at Alenia Spazio 17Contu, S, Doro.G, Mizzoni,R, Scialino.G.L., Alenia Spazio

EADS-CASA Space Division Last Developments on Antennas 25Montesano, C; Arevalo, F.; Caballero, R.; Castro, O.;De La Fuente, L.; Martin, M.;Montesano, A.; Pardo, J.; Solana, A., CASA

New Developments in Large High Performance Shaped Reflectors 31Abegg, C, Baril, S,.Dotte, B, EADSLaunch Vehicles

Antennas for Space at SAAB Ericsson 39Invarsson, P. Saab Ericsson Space AB

High Integrated Technology for Multifunction SAR Radiating Board 47Besancon, Richard; Lorenzo, Jerome; Mangenot, Cyril, Alcatel-Space

Experiences with the HALCA Space VLBI Satellite 51and Plans for the FutureHirabayashi, H, ISAS

" Session; Array Antennas

Land Mobile Antenna for Geo Satellite Communications 59Ares-Pena, Francisco*; Vicente-Lozano, Manuel*; Franceschetti, Giorgio**;Vaccaro, Stefano***; Mosig, Juan****; Vassal'lo, Juan******Universidadde Santiago de Compostela,**University ofNapoli,***JAST Sari, ****LEMA-Swiss Federal Institute of Technology,*****CSIC, Institute of Applied Physics

High Directivity Microstrip Array Using High-Directivity 67Fractal-Based ElementsAnguera, Jaume; Gemma, Montesinos; Puente, Carles; Borja, Carmen;Soler, Jordi ; Fractus S.A

Airborne Antennas for Broadband Satellite Communications 71Lisi, Marco; Angeletti, Piero; Catallo, Claudio; Florio, Antonio; Lucchi,Giovanni; Cucci, Alessandro, Alenia Spazio

ALENIA WRAS: an Effective Solution for the GALILEO 79Navigation AntennaAngeletti, Piero; Carati, Paolo; Catallo, Claudio; Lisi, Marco;Mizzoni, Roberto; Valle, Paolo, Alenia Spazio SpA

Active Antenna Module Characterisation by Pseudo-Noise Gating 87Hounam, D. *; Schwerdt, M. *; Zink, M. **, *DLR**ESA/ESTEC

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Q-Band Planar Microstrip Antennas for Pencil and Shaped Beams 95Armogida, A.*; Manara, G.*; Monorchio, A.*; Nepa, P.*; Devetti, M.**;Stringhetti, L.**;Pagana, E.***, *University ofPisa,**Fracarro RadioindustrieS.p.A.,***Antenna Consultant

Ka-Band DBF Terminalconcepts for Broadband Satellite 103CommunicationsDreher, A.*; Heberling, D. **; Holzwarth, S. **; Hunscher, C. ***;Jacob, A.****; Niklasch,N. *****; Pawlak, H. ****; Richard, L *; Schroth, A. *;Strange, L.****; Thiel, M.*, *DLR,**IMST,***Astrium GmbH,****TUBraunschweig, *****ViCon Engineering GmbH

Real-Time Measurement Results of Digital Beamforming Array 111Antenna On-Board Stratospheric Platform in the Bands 31/28 GHzOodo, Masayuki*; Miura, Ryu*; Hase, Yoshihiro*; Sakamoto, Teijiro**;Inaba, Takayuki**, Suzuki, Mikio***, Communications Research Laboratory,**Mitsubishi Electric Corporation,*** Yokosuka Stratospheric Platform Research Center

Application of the Solar Antenna "SOLANT" Concept to a 119Satellite PlatformVaccaro, Stefano*; Mosig, Juan R. *; de Maagt, Peter***LEMA-EPFL, **ESA-ESTEC

Session: Groundstation Antennas

ESA's 35-Meter Deep Space Antenna at New Norcia 129Martin, Rolf*; Akins, Dennis**, *ESA, **SED

The Possibilities of Using the Radio Telescope RT-70 in Evpatoria 137for Space Projects.Konovalenko, A.*; van 'tKlooster, K, **, *IRA, Kharkov **ESA/ESTEC

Frequency Selective Surfaces for the Next Generation of 147ESA Satellite Ground StationsDavis, I.*;Philippou, G.*;Lernanczyk, G.**; Madde, R.***,*ERA, **ESA/ESTEC, ***ESAJESOC

Session: Millimeterwave Testing

Millimeter-Wave Front-End Instrumentation for the Estec 159Compact Antenna Test Range.M.H.A. Paquay*, D.R. Vizard**, D. Korneev***, P. Ivanov***,V.J. Vokurka****, *ESA-ESTEC, **Farran Technology Ltd,***ELVA-1 Millimeter Wave Division, ****March Microwave Systems B.V.

Characterization of Corrugated Horn Antennas for HIFI 167Murk, Axel; Magun, Andreas, University of Bern

Hologram CATRS for 322 and 650 GHz: A Progress Report 173Koskinen, T. *; Ala-Laurinaho, J. *; Saily, J. *; Hakli, J. *; Lonnqvist, A. *;•Mallat, J.*;Raisanen, A.*; Tuovinen, J.**; Lemanczyk, J.****Helsinki University of Technology **Millilab,***ESA/ESTEC

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Measurement of Large Test Objects in Compensated Compact 181Ranges up to 500 GHzHartmann, J. *; Habersack, J.*; Streiner, H.J.*; Lemanczyk, J.**;DeMaagt, P.**, *Astrium GmbH, EADS,**ESA/ESTEC

Design of High Performance Wideband Corrugated Horn 189Horn, Beniguel, Y.*; Berthon, A.*; Costes, L.**; van 't Klooster, K.****IEEA, **Astrium,***ESAJESTEC

Session: Reflector Antennas

Large Space-Borne Antennas as a Tool for Studying the Universe 197at the Ultimate Angular Resolutionvan 't Klooster, K*, Gurvits, Leonid**,*ESA/ESTEC, **Joint Institute for VLBIin Europe

Shape Control of Inflatable Antennas Using Radiation 207Pattern AnalysisTanaka, Hiroaki**; Natori, M.C*, *The Institute of Space and AstronauticalScience, **Graduate Student of Tokyo University, c/olSAS

The Large Deployable Reflector Programme at Alenia Spazio 215P. Angeletti *, C. Catallo *, A. Cherniavsky **, M. Lisi *,G. Lucchi*, E. Medzmariashvili ***, F. Mini*, L. Scialino **Aknia Spazio Spa, **Sspa EGS, ***EGS

Large Deployable Space Antenna 225Chemiavsky, A.*; Chkekvadze, K.**; Gulyayev, V.***; Gaidaichuk, V.***;KravchenkoJ.*; Medzmariashvili, E.**, L. Scialino ****, *S.P.A. EGS,* *EGS, * * *EGS-Mathematical Modeling Ltd, ****A lenia Spazio

Session: EM Analysis

Modelling of Antenna Radiation Pattern of a Re-Entry Vehicle 235in Presence of PlasmaVecchi, Giuseppe*; Sabbadini, Marco**, *Politecnico di Torino, **ESA-ESTEC

Pattern Diversity Antenna System for Small Satellites 241Pivnenko, Sergey; Arslangic, Samel; Larsen, Niels V.; Zibar,Darko; Joergensen, Erik; Breinbjerg, Olav, Technical University of Denmark

Synthesis of Conformal and Miniature Antennas 249Visser, Hubregt*, Jonkergouw, Jan*, Warmer, Jos**,*TNO Industrial Technology, ** Eindhoven University of Technology,

A Coupled Feed-Radiator-Frequency Selective Surface Model 257for the Next Generation Active Phased Array SystemsMorsink, B.*; Van Werkhoven, G.*; Tijhuis, A.***Thales Naval Nederland, **Facuity of Electrical Engineering

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Session: Advanced Antennas Polarimetrv and CMB

A Matrix-Based Polarimetric Model for a CMB Telescope 269PolarimeterHamaker, Johan, Astron/NFRA

Planck / LFI: an Advanced Multi-Beam High Performance 277Mm-Wave Optics for Space ApplicationsVilla, Fabrizio*; Sandri, Maura*; Bersanelli, Marco**; Butler, Reginald,Christophe; Mandolesi, Nazzareno*; Marti-Canales, Javier***; Tauber, Jan****IASF/CNR - Sezione di Bologna, **Universita'di Milano,***ESA IESTEC

A Novel Design for a Compact Corrugated Horn 285Clarricoats, Peter; Dubrovka, Rostyslav; Olver A,Queen Mary University of London

PLANCK HFI Beam Simulations for Polarized and Multi- 291Moded HornsYurchenko, Vladimir*, Murphy, John Anthony*, Lamarre, Jean-Michel**,*National University of Ireland, Maynooih,** Observatoire de Paris

Session: Reflector Antennas

Development Status of an Unfurlable CFRP Skin Reflector 299Schmid, M.; Barho, R., Astrium

CRTS Reflectors 307Pellegrino, Sergio; University of Cambridge

Modular Antenna Concept Consisted of Radial Ribs and Hoop 315Cables for Space VLBI MissionNatori, M.C., ISAS (Inst. Space and Astronautical Science)

High Precision Electroformed Nickel Panel Technology for 321Sub-Millimeter Radio Telescope AntennasValsecchi, G. *; Eder, J. *; van ' t Klooster, C. **; Fanchi, L. **, *Media-Lario,**ESA/ESTEC

Session: Structural Aspects Deplovable Antennas

Concepts and Technologies for Precision Unfurlable Reflectors 331Baier, H.; Datashvili, L.; Mueller, M., Technische Universitaet Muenchen

Kinematic and Dynamic Simulation of the Deployment of a 339Large Space Antenna SystemAugello, G.*; Gabellini, E.**;Kravchenko, Y.***;Medzmariashvili, E.****;Pellegrino, P. *****; Scialino, L. *; *Alenia Spazio S.p.A., **Sametech S.A.***SPA EGS,****EGS, Tiblisi,*****LDA

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Enabling Technologies for Active Vibration Control of Large 349Space StructuresPREUMONT, Andre*; Loix, Nicolas**, *ULB, **Micromega Dynamics

Boom Deployment Mechanism for Large Deployable Antennas 351Unckenbold, Wilm*; Eiden, Michael J.**; Herbeck, Lars***;Leipold, Manfred****; Schoppinger, Carsten*****; Sickinger, Christoph***,*HPS GmbH, **ESA /ESTEC, ***DLR, ****Kayser-Threde GmbH,*****INVENT GmbH

Session: Feed Systems

High Performance Antenna Feeds Development at EMS Technologies 361Uher, Jaroslaw*; Amyotte, Eric**; Ravipati, Chaitanya, Babu**;Rheault, Sylvain***, *EMS Technologies Canada,**EMS Technologies,***EMS Technolgies

A Combined Transmit/Receive Feed System for Personal Mobile 369Communications in L/S-Band in Consideration of IncreasedPower ApplicationsGehring, Rolf**; Sommer, Ernst**; Wolf, Helmut**; Wolframm, Aribert**;

Rinous, Peter***, *ASTRIUM GMBH - Navigation & Constellations,**ASTRIUMGMBH, ***ESA/ESTEC

Focal Fields in Reflector Antennas and Associated Array-Feed 375Synthesis for High-Efficient Multi-Beam PerformancesIvashina, Marianna*, van 't Klooster, K**., * NFRA, ASTRON, **ESA-Estec

Phase Stabilized Fiber-Optic Link for Microwave and Millimeter 383Wave Signals DistrubutionBratchikov, A., Moscow State Aviation Institute

Session: Testing

3D Non Contact Metrology for Antenna Manufacturing and Testing 393Dold, Juergen, Leica Geosystems

Photogrammetric Distortion Measurements of Antennas in a 401Thermal-Vacuum EnvironmentWiktowy, Michael; O'Grady, Mark; Atkins, Gary; Singhal, RajCanadian Space Agency - David Florida Laboratory

Ka-Band Transmit Reflectors Thermal Distortion Test and 409CorrelationRoss, Alpha, EMS Technologies

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Characterization of Antennas and RF Components while 417Simulating Environmental EffectsMIshra, Shantnu*; Charron, Pierre**, *Canadian Space Agency;**CSA / DFL

A Carbon Fiber Parabolic Dish for the Multibeam Solar Radio Telescope 419V.Khaikin*, E.Bitkin**, A.Matyushkin**, S.Yakovlev***, A.Kazarinov***,E.Valtaoja****, *The Special Astrophysical Observatory of RAS, ** Luch Co,*** BUM TECHNO JSC, **** Tuorla Observatory UTU,

Session: Reflect Array Antennas

Broad Band Contoured Beam Reflectarrays for Satellite Antennas 425Encinar, Jose A.; Zornoza, J. Agustin, Polytechnic University of Madrid

Low Loss Reflectarray Antenna for Space Application 431LEGAY, Herve*; Pinte, Beatrice*; GILLARD, Raphael**; Girard, Etienne**;Charrier, Michel***; Ziaei, Afshin****, *ALCATEL SPACE,**IETR,***Thales Reseach Technologies,****Thales Research, Technologies

Active Frequency Selective and Polarization Sensitive Surfaces Using 439Negative Resistance Circuits and Electronically ControllableLumped LoadsAlpaslan, A.*; Edenhofer, P.**, *Siemens AG,**University ofBochum

Semi-Active Ka-Band Reflectarray Antenna Design, 447Production and TestingDe Groot, J., Duivenvoorden, J, Thales Naval Netherlands

Mathematical Model of Microstrip Reflectarray with 453Controllable LoadsKasyanov, Alexander, Taganrog State University of Radio Engineering

Session: Antennas for Synthetic Aperture Radar

X Band Active SAR Antenna Architecture for Sky Med 463Cosmo MissionCapece, Pasquale*; Sirocchi, Gianfranco*; Santachiara, Valter*;Trento, Raffaele*; Capuzi, Arnaldo**, *Alenia Spazio,**ASI

Design of an L-Band Active Array Antenna for SAR Applications 471Mathew, Colin; Howard, Philip; Gladwish, Roderick, Astrium Ltd

Advanced Front-End and Antenna Developments 479Zahn, R. *; Heer, C. *; Braumann, H. *; Link, J. * *Astrium GmbH

Membrane Antenna for SAR Satellite 487Jerome Colinas*, Steeve Montminy*, Marie-Josee Potvin *,Arthur Baylis** Nicholas Audet**, Luis Martins Camelo**,Peter Wood**, * Canadian Space Agency, **- EMS Technologies,

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Session: Analysis Techniques

Electrical Analysis of Light-weight, Triangular Weave 495Reflector AntennasPontoppidan, Knud, TICRA

A Systematic Approach to Analysis of Polarisation- 503Sensitive Reflector AntennasViskum, Hans-Henrik, TICRA

The Quasi-Optical Analysis of the HIFI Front-End Optical System 511Trappe N*, Murphy J.A*, Kruizinga B**, Visser H**, Jellema W***,Wildeman K***, van de Stadt, H***., *National University of Ireland,**TNO TPD, ***Space Research Organisation

Re-conformable Sub Reflector for Sub-Millimetre Wave Radio Meter 519Zocchi, F.*; Valsecchi, G.*; van 't Klooster, C. **; Viskum, H.***; Wagner, R,*Media-Lario, * *ESA/ESTEC, * * *TICRA

Session: Antennas For Earth Observation

Design of an Airborne Dual-Polarized Triple Stacked Patch Antenna 527for Broadband SAR Application in P-BandLimbach, M..DLR

Antenna Pattern Synthesis with Optimised Excitation Laws in Use of 533a Genetic Algorithm for ENVISAT ASARAlvarez-Perez, J. *; Schwerdt, M. *; Hounam, D. *; Torres, R. **; Buck, C. **;Zink.M.**, *DLR,**ESA/ESTEC

Spaceborne Microwave Imager/Sounder MTVZA 537Cherny, I.*; Chernyavsky, G.*; Gorobets, N.***Russian Aviation and Space Agency, **Kharkov National University

Multiple Satellite Detection with a Prototype New Generation 543Phased Array Radio TelescopeBoonstra, A.; Vd Tol, S; Vaate, J.; van Ardenne, A., ASTRON

Session: Special Space Antennas

Dual Frequency Patch Antenna for GPS Occultation Measurements 551Hassel, M., Saab Ericsson Space AB

An Accurate Rf Sensing Antenna for Fine Pointing of Satellites 557Magnusson, Per*; Bogeskar, Tobias*, *Saab Ericsson Space

Wideband Medium-Gain Radiating Elements in Multi-Layer 565Composite TechnologyFoged, Lars*; Sabbadini, Marco**; Baracco, Jean*; Bandinelli, Mauro***;Bercigli, Mirco***, *SATIMO**ESTEC,***IDS

Dual Band Quadrifilar Helix Antennas for V/UHF & 573UHF/ L-Band OperationNotter, Michael*; Cox, Graham*; Keen, Keith**; Lowdell, John**Astrium Space UK Ltd,**Keen Associates

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Poster Session

Marker Injector for Calibration of Millimeter-Wave Polarimeters 583Peverini, Oscar Antonio*; Tascone, Riccardo*; Olivieri, Augusto*;Baralis, Massimo*; Virone, Giuseppe*; Carretti, Ettore**; Monari, Jader***;Cortiglioni, Stefano**, *IRITI-CNR,**IASF-CNR,***IRA-CNR

Limited Scanning Phased Array Antenna Based on a Novel MMIC 591Phase Control ElementToshev, Alexander; Totomanov, Emit; Gatchev, Mario; Arnaudov.Radosvet;Stoyanov, Ilian, Sky Gate Bulgaria Ltd

The Testing of Precise Carbon Fiber Parabolic Dish in 597Working ConditionsS.Yakovlev*, A.Kazarinov*, A.Andreev*, S.Semin*, V.G.Gimmelman**, V.Khaikin***,* Bum Techno Jsc, ** KB SM, ***The Special Astrophysical Observatory of RAS,

Field Theory Analysis of Rectangular Waveguide Arrays with 601Finite Flush Mounted Dielectric Cover.Manuilov, Mikhail, Rostov State University

Evaluating Complex Large Structure Contributes on Antenna 607Radiation PatternSabba, Giorgio; Migliozzi, Giuseppe; Nicolo', Giuseppe; Tarducci, DarioAlenia Aeronautica S.p.A.

100 GHz Corrugated Horn: Design and Fabrication 613Pelosi, Giuseppe*; Bolli, Pietro*; Natale, Vincenzo**; Nesti, Renzo***;Tofani, Gianni****; Valsecchi, Giuseppe*****,*University of Florence,**Ira - CNR Sezione di Firenze, ***INAF— Osservatorio Astrofisico di Arcetri,****IRA-CNR, *****MEDIA LARIO S.R.L.

Some New Properties of the Circular Waveguides with Azimuthally 621Magnetized FerriteGeorgiev, Georgi Nikolov; Georgieva-Grosse, Mariana NikolovaUniversity of Veliko Tirnovo

Footprint Patterns Obtained by Planar Arrays with an 629Arbitrary BoundaryRodriguez-Gonzalez, Juan A.; Estevez-Radio, Herman; Ares-Pena, FranciscoUniversidad de Santiago de Compostela

Films Lens Antennas for Large Aperture Space Radio Telescopes 637Ujihara, Hideki; Chikada, YoshihiroNational Astronomical Observatory in Japan

Advanced Simulation Techniques for Straylight Predictions of High 641Performance Mm-Wave Reflecting TelescopesSandri, Maura*; Villa, Fabrizio*; Bersanelli, Marco**; Butler, ReginaldChristopher; Mandolesi, Nazzareno*; Tauber, Jan****IASF/CNR - Sezione di Bologna, **Universita' degli Studi di Milano,***ESA/ESTEC

Astigmatic Beam Tracing Application to Satellite Antenna Interactions 649Di Giampaolo, Emidio*; Sabbadini, Marco***University ofL'Aquila, **TOS-EEA, European Space Agency

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Slot-Array Antenna Designs for Satellite Reception 653Maria, Vera Isasa*; Sierra Castaner, Manolo**; Sierra Perez, Manuel***Universidad De Vigo, **Universidad Politecnica De Madrid

Antenna Test Range 659Schmidt, Christoph*; Wansch, Rainer*; Linberg, Klaus**; Humpfer, Harold**Fraunhofer Institut Integrierte Schaltungen, **EMV GmbH

Antenna Deployments : a Self-Motorised Hinge 663Pellerin, Andre*; Mazoyer, Thierry*; Sicre, Jacques**;Begoc, Gilbert***; Givois, Damien*. *MetravibRds,**CNRS,***ThalesS.A.

Definition of the Multi-Mode Horns for the HFI Instrument 671on PlanckMurphy, J Anthony*; Gleeson, Emily*; Maffei, Bruno**, Richard J. Wylde***,*National University of Ireland, Maynoooth,**University of Wales, Cardiff, *** Thomas Keating LTD,

An Integrated Simulation Approach for Pattern Analysis 679of Spaceborne AntennasSerebrennikov, A.; Chernopazov, S., Perm Federal Technical University

Very Compact Circularly Polarized Antenna for Ground 681Station ApplicationsDuchesne, Luc*; Le Goff, Marc*; Baracco, Jean-Marc*; Dumon, Patrick***SATIMO,**CNES

High Performance Dielectric Materials for Space Lens Antennas 687Martin, Laurent*; PIERRE, Alexandra**; LOPEZ, Jean-Marc**;ALBO, Laurence**; PITON, Gerard***, *ALCATEL-SPACE,**ALCATEL SPACE ***CNES

A Fast Physical Optics Method for the Analysis of Beam Waveguides 693Bondo, Torsten*; Soerensen, Stig*, *TICRA

Pattern Simetrization for Array Embedded Stacked Patches 701Rajo-Iglesias, E. *; Vazquez-Roy, J. *; de Inclan, L. *;Segovia-Vargas, D.*; Martin-Pascual C.*; Gonzalez-Posadas, V.**,*Universidad Carlos III de Madrid, **UniversidadPolitecnica de Madrid

Aluminimoxide Technology for Active Millimeter Wave Phase Array 707Tamelo, A., Belarussian State University of Informatics andRa

Switchable Beam Diversity Antenna 709Elkamchouchi, H.; El-dien, H., Alexandria University

Reflectivity Investigations of Metal Samples in the Frequency 711Range 110-200 GHzvan 't Klooster, Kees*; Parshin, Vladimir**; Myasnikova, Svetlana, E.**;Valsecchi, Giuseppe*** *Estec,**Gycom,***MediaLario

Q-Band Shaped Reflector Antennas Synthesized by Genetic Algorithm 719Armogida, A. *; Manara, G. *; Monorchio, A. *; Nepa, P. *; Rossi, G. *;Devetti, M. **; Stringhetti, L.**; Pagana, E. ***, *University of Pisa, **FracarroRadioindustrie S.p.A., ***Antenna Consultant

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Dual Band Coaxial Feed (32 and 8.4 GHz) for Doppler Tracking 725of the Cassini Mission from the Primary Focus of VLBI Antennas.Ambrosini, R. *; Mariotti, S. *; Scalambra, A. *; Interlandi, S. **; Lucca, F. **;Pagana, E.**;Besso, P.***; SalghettiDrioli, L.****CNR Bologna, **L.T. Calcoli S.a.S. Merate, ***TILAB Torino

The Structural Concept of a Large Mm And Submm Space Mirror 733Bujakas, V, Astro Space Center ofP.N. Lebedev Physical Institute

Electric Breakdown Strength of Microwave Devices and Antennas 741for Low Orbit SatellitesAstaykin, A.; Pomaskov, A.; Profe, V, VNIIEF

Numerical Investigation of the Deformation of the Groundstation 743MARECS AntennaBornkessel, T*., Schaefer, M* Mueller-Stute, F**, Cozzani, A**,Darmstadt University of Technology, ** ESA/ESOC

Space and Earth Station Mesh Reflective Surface Antennas 749Khalimanovitch, V; Kozlov, A., NPO-PM

A Ka-band Active Scanning Array for Mobile Satellite Terminals Using 757Slotted Waveguide TechnologyGatti.Roberto Vincenti, Sorrentino, Roberto, University of Perugia

Beam Forming through the Use of Electomagnetic Band 763Gap MaterialsAkalin, T. *• Wolf, G. *; Arscott, S. *; Melique, X. *; Vanbesien, O. *; Estebe, E. **;Lippens, D.*, *IEMN,**ThalesResearch Technology

X/Ka-Band Dichroic Mirror Plate with Rounded Rectangular Holes 771Salghetti Drioli, L*. Perregrini, L*.; Bozzi, M. **; Besso.P.***; Madde, R***.;* TILAB; **UniversityofPavia, ** ESA-ESOC

Stiffened Springback Reflectors 777Pellegrino, S, Tan, L, University of Cambridge