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Space Electromagnetic Solutions

Applied ElectroMagnetic Engineering

IDS has always focused its efforts on acquiring and maintaining advanced applied electromagnetic knowledge. The company has applied this acquired expertise to space technologies, creating a highly specialized team of qualified engineers to provide EM services and consulting to the space industry and developing high-fidelity modeling methods in support of analysis and design.

In particular IDS offers support to antenna engineers involved in antenna and array design and to satellite integrators in accurately controlling common space segment challenges such as pattern distortion, antenna coupling, RFC, RE/RS, PIM (Passive InterModulation Products), Surface and Deep Charging and ESD (ElectroStatic Discharge) with the application of MIL-STD, ECSS and NASA regulations. This includes highly accurate predictions of the electromagnetic performance of single antennas, arrays and complex antenna platforms, drawing on an excellence in computational methods and the special functions required by space applications, which are not usually available in general purpose tools. Physical ESD testing is also available through specially developed “space representative” ESD dischargers.

Special validated modeling solutions are further available for specific applications such as:

Space Electromagnetic Solutions
  • Evaluation of the EMI interference caused by Hall-effect thrusters on telecommunication payloads and the optimal arrangement of thrusters vs. telecommunication antennas
  • Re-entry vehicle link-budget evaluations and optimal arrangement of ground stations: advice on the optimization of vehicle antenna placement and selection of the best possible vehicle trajectory in order to minimize or eventually eliminate the black-out phase in communications between the re-entry vehicle and ground stations
  • GPS multipath mitigation for spacecraft attitude control and limb sounding (radio occultation) applications

Solutions for SAR systems

IDS can provide capabilities and products for Synthetic Aperture Radar (SAR) systems, both in terms of highly accurate passive ground calibrators and automatic recognition software tools from SAR images:

  • Automatic target detection (static and moving targets) & tracking (moving targets)
  • Automatic target change detection (CD)
  • ISAR Imaging
  • Automatic target recognition (ATR) (SAR, IR)
  • Feature extraction & classification

Main Features

  • High fidelity modeling of complex structures using advanced solvers, the accuracy of which have been validated by high precision measurements
  • A palette of advanced modeling methods including full-wave (Method of Moments (MoM)), asymptotic (Physical Optics (PO/PTD/ITD), Uniform Theory of Diffraction (UTD)) and statistical (Oversized Cavity Theory (OCT))
  • Full-wave analysis of large platforms using several acceleration methods including Multi-Level Fast Multipole Algorithm, Multi-Resolution with Sparsification and Multi-Level SFX-3D
  • Full-wave analysis of large arrays and a–periodic structures using acceleration methods such as Synchronous Iterative Method (SIM), Synthetic Function Expansion (SFX), Sparse Matrix- Adaptive Integral Method (SM-AIM), SIM/SFX and SFX/SM-AIM
  • Calculation of the electric field level, caused by internal equipment and apertures excited by external antennas, inside each satellite cavity (RE/RS)
  • Interference margin for each device located in a satellite.
  • Analysis and optimization of RF links between a re-entry vehicle and ground or satellite relay stations
  • Analysis of the EMI interference from Hall-effect thrusters on telecommunications payloads and the RF propagation losses of telecommunications antennas
  • Highly automated target recognition and feature extraction tools from SAR data
  • ESD physical testing is also available through specially developed “space representative” ESD dischargers
  • Highly accurate ground passive isotropic calibrators. R&D activities for innovative polarimetric calibrators.

Benefits of Space Electromagnetic Solutions

  • IDS’s consultancy and services make extensive use of our advanced in-house EM modelling and simulation software tools, which have been developed and validated over 30 years of providing EM design and prediction services.
  • IDS has extensive experience of providing cost-effective solutions and support, having joined forces with a number of major players in the space sector, including the European Space Agency (ESA), and played an active role in space programs such as SICRAL, OCEANSAT-2, SAC-D, SMALLGEO and GALILEO.
  • IDS’s competitive advantage comes from its commitment to research and development driven by a proven track-record for advanced engineering systems and successful team structures to ensure we stay ahead of the game in an evolving market. IDS solutions are developed in response to specific customer requirements with fast, cost-effective and reliable results in antenna system design.
Applications of Space Electromagnetic Solution

Antenna designers and satellite integrators need reliable simulations. This requirement becomes crucial when modeling has to be applied to complex scenarios such as a satellite, which are characterized by there being no chance of making any corrections once in orbit. IDS provides consultancy services that use a dedicated software suite, developed on the back of many years’ experience, to ensure customers benefit from the most accurate results possible, obtained through user friendly workflows, tested and honed during several industrial projects.

Not only do IDS offer solutions for conventional antenna and EMC-related issues, but also uncommon interference and propagation issues which can’t be solved by any other commercial offer, such as the RF interference of latest generation Hall-effect thrusters and mitigation of black-out problems for space vehicles re-entering Earth’s atmosphere.

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