The transversal electromagnetic mode which can be developped in the SL 90 strip line, provides the opportunity for doing EMC testing inside the strip line. The geometrical dimensions having a line impedance of Z = 90 Ω. At the end, the line is matched by a 90 Ω termination. Typical for this strip line is the low power request for high field strength values. The strip line is specified in ISO 11452-5 ‘Road Vehicles electrical disturbances through radiated narrowband electromagnetic energy: Measurement procedure for components part 5: Strip Line’. The SL 90 allows testing electrical/electronic sub modules (EUB) and their associated cables. Standards like BMW GS 95002 allow both emission and immunity testing with the strip line. Although emission testing is derived from ISO 11452-5 where the strip line is exclusively used for immunity tests. BMW GS 95002 provides additional hints. The limit line is given as interference voltage level in dμBV.
SL 90 雙平行板式傳輸線 (Strip Line) 可產生橫向電磁模式（Transversal Electromagnetic Mode, TEM），使其能在傳輸線內部進行電磁相容性 (EMC) 測試。其幾何設計具備 90 Ω 的線路阻抗，並於傳輸線末端以 90 Ω 負載終端匹配。此型式傳輸線的特點是：僅需低功率輸入即可產生高場強。
SL 90 符合 ISO 11452-5 標準（道路車輛電氣擾動－經由窄頻輻射電磁能量的抗擾度測量程序，第 5 部分：雙平行板式傳輸線），可用於測試電氣／電子子模組（EUB）及其相關線纜。BMW 的 GS 95002 標準也允許使用此傳輸線進行發射與抗擾度測試。儘管 ISO 11452-5 僅將其定義為抗擾度測試工具，BMW GS 95002 仍提供進一步指引與要求，其中發射測試的限值以干擾電壓（dμBV）表示。
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EMC tests for vehicle components immunity to RF fields
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Conformity with the requirements of ISO 11452-5
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Efficient power conversion provides high field with minimum power
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針對車用零組件進行射頻電磁場抗擾度的 EMC 測試
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符合 ISO 11452-5 標準要求
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高效能的功率轉換，可在最低功率條件下產生高電磁場強度
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IEC / EN Basic Standards : IEC 61000-4-20
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Automotive Standards : ISO 11452-5
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CISPR Standards : CISPR 25
