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EMC: AUTOMOTIVE TESTING


EMC & 5Gtesting


Automotive


Range of test equipment from Rohde & Schwarz focuses on the increasingly diverse and complex RF environment of automotive products, including 5G communications


been held in Cologne, Germany in March. Not to be thwarted by the cancellation of


T


EMV 2020, we bring you a more detailed look at R&S’s electromagnetic compatibility (EMC) test systems that have been developed specifically for users in the automotive industry. Such specificity includes fast CISPR-25 certification, a robust and compact BCI test system and AdVISE version 5, which keeps a close eye even on vibrating display elements during electromagnetic susceptibility (EMS) tests. According to R&S, these systems were


30 /// Testing & Test Houses /// April 2020


he global coronavirus outbreak put paid to Rohde & Schwarz (R&S) displaying its test hardware and software systems at the annual EMV event which should have


developed because today’s vehicles contain increasing amounts of electronics with RF technology, radio components, radars and high speed data buses. This makes it difficult for automotive manufacturers to ensure that electronic emissions remain within specified limits and that vehicles are not susceptible to external interference sources.


PROTECTION FROM INTERFERENCE One of the things manufacturers must ensure is that onboard receivers in vehicles are adequately protected against electromagnetic interference (EMI). So R&S has developed an especially fast measurement method for tests that meet the CISPR-25 standard. Not only does it measure very quickly, it does so with an


extremely small resolution bandwidth of just 9kHz. According to the company, the equivalent series resistance (ESR) EMI test receiver (ESW) with an R&S ESH3-Z6 line impedance stabilisation network, with its numerous features for analysis and troubleshooting, provides an ideal midrange compliance test. The ESW Test Receiver also has a new fast


time-domain scan (fast TDS) function. With double the scan bandwidth, the measurement speed is nearly twice as fast as a conventional time-domain scan. This enables faster measurements than previously achieved commercially for time-consuming tests with a quasi-peak detector. Along with accelerating preliminary measurements, this method can be used for certification in the


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