Implementation and characterization of GTEM cell using ferrite tile absorber

Pasakawee, Sarinya; Sittakul, Vitawat

doi:10.1109/cama.2017.8273479

Cited by 2 publications

(2 citation statements)

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“…In (Clemens and Weiland 2001) shows the Finite Integration Technique (FIT) as a discretization method for computing numerical simulations in this field. In (Pasakawee and Sittakul 2017) shows the use of ferrite tiles with foam to enhance absorption above 100MHz. In (Budania et al 2020) shows an interesting comparison between the reflection parameters in the transition from the N-Type connector and the septum, similar to what is shown in (Junru et.…”

Section: History and Motivationmentioning

confidence: 99%

“…Most of the materials used for construction are commercially available in the country, but not the activated carbon foam and graphite plates suggested in (Pasakawee and Sittakul 2017). Due to this, the design needs to keep free space between the absorber foam and the flat base, so in the future, the graphite plates can be installed behind the absorbent foam.…”

Section: Requirements Of the Gtemmentioning

confidence: 99%

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Design and Fabrication of a Large GTEM Cell for Electromagnetic Compatibility Testing

Proceedings of the International Conference on Industrial Engineering and Operations Management

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One mandatory requirement for validating new electronic devices and machines is electromagnetic compatibility (EMC) tests because any new design can emit or receive unwanted electrical interference, affecting the operation of other systems or devices in their environment. This requirement becomes critical in the case of real-time control systems, electromedical devices, and outer space operations. The Gigahertz Transverse Electromagnetic Cell (GTEM) is a tool for performing preliminary electromagnetic compatibility tests on new products. It generates a standardized and uniform electromagnetic field in a shielded environment, integrating pyramidal electromagnetic absorbers with large bandwidth. Compared to other environments, such as an anechoic chamber, its reduced dimensions and cost make it a suitable test laboratory environment for EMC measurements. This article describes the steps to design and build a Radio frequency isolated chamber (GTEM) with dimensions 4 m long, 2.2 m wide, and 1.5 m high. A literature review of the recommendations is summarized. The design of the mechanical parts and construction techniques are described to generate a construction guide for future interested parties. Its critical dimension was analyzed with simulations using finite elements method to match the characteristic impedance of the exciter impedance and guarantee to minimize reflections.

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