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How should I define or select the residual inductance values of Shorting Bars when performing Short compensation on the E4991A or the 4287A?

The residual inductance value of Shorting Bar has been traditionally defined as 0 Henries (impedance 0 Ω). Keysight has also been taking the traditional definition method. Nowadays, IEC 62024-1 Ed.2.0: 2008 "High frequency inductive components - Electrical characteristics and measuring methods - Part 1: Nanohenry range chip inductor" and compatible national standards DIN IEC 62024-1, BS EN 62024-1 and JIS C 62024-1 stipulate the dimensions of shorting devices and the Short Compensation method which uses the defined inductance values of the shorting devices. It is recommended that you take into considerations these authorized standards, especially when measuring low inductance DUTs.
For the measurement discrepancies due to the difference in the defined inductance value of shorting device, refer to Application Note "Keysight 16196A/B/C/D Correlating RF Impedance Measurements When Using SMD Test Fixtures".

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