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Simulation Driven Product Development for Electromagnetic - Ansys

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SMA: Six Sigma Analysis<br />

• By using the vendor tolerances and applying a DOE in DX, can<br />

determine statistical expectations of per<strong>for</strong>mance!<br />

• In this case, 99.918% of SMA connectors will have Return Loss less<br />

than -20 dB!<br />

– Fail rate = 819 per million (3.15 σ) : Will need tighter vendor<br />

tolerances or other design <strong>for</strong> 3.4 per 1,000,000 (6σ)<br />

• 99.9934% will have RL less than -15dB (3.82 σ) -> 65.6 fail in 1 million<br />

• One gains much<br />

insight into the<br />

fabrication<br />

tolerances needed<br />

<strong>for</strong> desired<br />

manufactured<br />

per<strong>for</strong>mance!<br />

© 2009 ANSYS, Inc. All rights reserved. 21 ANSYS, Inc. Proprietary

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