In this chapter, we discuss the simulation of radiated emission tests. While Chap. 6 already addresses the calculation of emitted field values, it focuses solely on the use of field probes. Here, the emphasis shifts to modeling standardized measurement setups and exploring how these setups can be simplified. The chapter begins with a discussion of monopole antenna measurements and the steps required to perform antenna calibration. This is followed by an analysis of radiated emissions in the frequency range from 30 MHz to 1 GHz, where we compare simulation results obtained using full antenna models with those obtained from field probes. The first application example in this chapter evaluates the radiated emissions from the inverter previously studied in Chap. 10. We then extend the frequency range up to 5 GHz and present a simulation setup for radiated emission measurements using a turntable configuration. The second application example analyzes radiated emissions from a USB 3.0 channel. In the advanced section, the USB channel is segmented into sections that are cascaded in a schematic simulation. The resulting cascaded model is compared to the previous simulation, in which the entire channel was modeled within a single EM simulation.

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Radiated Emission

  • Jan Hansen,
  • Andreas Barchanski

摘要

In this chapter, we discuss the simulation of radiated emission tests. While Chap. 6 already addresses the calculation of emitted field values, it focuses solely on the use of field probes. Here, the emphasis shifts to modeling standardized measurement setups and exploring how these setups can be simplified. The chapter begins with a discussion of monopole antenna measurements and the steps required to perform antenna calibration. This is followed by an analysis of radiated emissions in the frequency range from 30 MHz to 1 GHz, where we compare simulation results obtained using full antenna models with those obtained from field probes. The first application example in this chapter evaluates the radiated emissions from the inverter previously studied in Chap. 10. We then extend the frequency range up to 5 GHz and present a simulation setup for radiated emission measurements using a turntable configuration. The second application example analyzes radiated emissions from a USB 3.0 channel. In the advanced section, the USB channel is segmented into sections that are cascaded in a schematic simulation. The resulting cascaded model is compared to the previous simulation, in which the entire channel was modeled within a single EM simulation.