Conference Paper

Analysis of the CISPR 25 component test setup

ARC Seibersdorf Res. GmbH
DOI: 10.1109/ICSMC2.2003.1428236 Conference: Electromagnetic Compatibility, 2003. EMC '03. 2003 IEEE International Symposium on, Volume: 1
Source: IEEE Xplore


We analyze the wave propagation characteristic of the CISPR 25 radiated emission test setup with numerical simulations. Bad repeatability of the standardized ALSE validation procedure urged us to develop a new, more stable procedure. Our new validation procedure uses a small conical, dipole antenna instead of the test harness which improves the repeatability and avoids impedance problems of the artificial network and the noise source. Furthermore it allows precise measurements to investigate the influence of test bench dimensions and grounding. Results of these investigations are shown

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    • "One study [12] reported that the setup can resonate in the frequency range from 10 to 30 MHz, which is important for a setup with a monopole antenna; however, in this work, we have omitted the low-frequency range. Another study [13], however, reported that the setup (primarily the table) could also resonate in the frequency range from 45 to 70 MHz, depending on the table size and the grounding configuration. Table resonances could potentially result in strong standing wave patterns on the table surface. "
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