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RF probe measurements are widely used for characterizing circuits in the millimeter-wave frequency range. Especially above 200 GHz the large dimensions of the RF probe, in comparison to the wavelength, lead to parasitic effects which will effect the device under test. Since the measurement is influenced by the electro-magnetic coupling between probe tip and the test structures on the substrate, the...
This paper presents a novel structure design of Gigahertz Transverse Electromagnetic (GTEM) cell for EMC test in the RF & Microwave laboratory, National Institute of Metrology, Thailand (NIMT). The aim is to design a GTEM cell with a size of 1.1m × 2.1m × 0.8m (W×L×H) over a frequency range of 40 MHz to 1 GHz. The ferrite tile absorbers for EMC test in anechoic chamber are mounted on the inner...
Conducted immunity tests are always performed by use of Coupling Decoupling Networks (CDN) in laboratories in accordance with the standard EN61000-4-6. However, it is not always possible to use CDNs because of some limitations. If the Equipment Under Test (EUT) has large dimensions or high currents, it is not possible to use CDNs during tests. As a consequence, alternative methods are required in...
We present a method for estimating the probe-dependent residual errors of wafer-level TRL calibration. The method does not require additional measurement steps. It was verified experimentally for four industry standard RF probe types. The proposed method can be used, e.g., for confident cross-laboratory data sharing and comparison.
In this work, the Bulk Current Injection (BCI) test procedure based on the substitution method is simulated with the objective to quantify the differences between the RF current level theoretically and actually injected into the equipment under test (EUT). Standard injection profiles are considered, and a virtual procedure for calibration is exploited to retrieve the forward power required for the...
There are many hazardous electrical events in the environment that may have adverse effects on the systems of a vehicle and could potentially be unsafe. These events can be generated by "off-vehicle" as well as "on-vehicle" sources and can come from nature or be man-made. To protect against these events Automobile Manufacturers have developed ElectroMagnetic Compatibility (EMC)...
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