Items Tagged with 'isolators'

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The Challenge of Measuring a 40 µΩ (2000 Amp) PDN With a 2-Port Probe: The Measurement Result With Another VNA

In the final installment of this blog series, Benjamin Dannan, Heidi Barnes, and Steve Sandler discuss how to calculate the minimum CMRR with a PDN impedance measurement using a 2-port probe, demonstrating how is possible to measure a sub-40 µΩ impedance using a 2-port probe when using an isolator that has sufficient CMRR using two different VNAs, the Bode 100 and E5061B. Achieving sub-40 µΩ impedance measurements is challenging, but completely realistic with the proper test equipment. 


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