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Oklahoma State University

Robust Electromagnetic Field Testing and Simulation Lab

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Electromagnetic field theory is the primary research and education area in the REFTAS laboratory. Applications in electrical engineering such as RFID and wireless communication in harsh environments are studied. The REFTAS laboratory is a pioneer in theory and potential applications of electromagnetic interference including: countermeasures involving microwave technology, antenna structures, rough surface scattering, absorber geometry/ materials, reduction of radar cross sections, and communication integrity of Unmanned Air Systems in harsh electromagnetic environments.

The graduate and post-graduate level courses give students a deep insight into the various analysis methods and calculation techniques of electromagnetic fields in these areas of interest. Research in the REFTAS lab is conducted by both faculty and graduate students. While this research is primarily theory oriented, experimental analysis and software development tasks are carried out as needed and required to explore the state of the art of electromagnetic theory.

Recent Efforts

The REFTAS lab (Robust Electromagnetic Field Testing and Simulation) at OSU provides key knowledge, experience and methods to define the optimal characterization metrics. Past work with the NAVY (SPAWAR and NAVAIR) has led to advances in measurement and simulation validation of models for rapid determination of potential susceptibility to hostile and friendly electromagnetic threats. The use of simulation tools cannot be relied upon without a careful validation campaign targeted at characterizations that are measureable. The emphasis on high caliber measurement facilities is absolutely critical to achieve this goal. OSU has considerable national (and international) visibility in High Intensity Radiated Fields (HIRF) and Reverberation Chamber (RC) application and operation. Our scholarly contributions have been of considerable value to aerospace applications and have focused on the ability of an external threat to couple current onto wire structures carrying command, control, and communication data. The emphasis on model validation is a key aspect of OSU's strength that has gone considerably beyond the publication of results in refereed journals. The principal investigators are officers on IEEE Standard 1597 (Standard for Validation of Computational Electromagnetics Computer Modeling and Simulation) and we continue to participate heavily in international professional societies (IEEE EMC) to ensure ongoing rigor in methods to evaluate models to predict electromagnetic phenomena of all kinds.

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