Fully Integrated Differential Distributed VCO using Ansoft IC Solution
Fully Integrated Differential Distributed VCO using Ansoft IC Solution
Fully Integrated Differential Distributed VCO using Ansoft IC Solution
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DD<strong>VCO</strong> Design Considerations<br />
– Circuit-EM co-simulation<br />
• Take into account the design rules<br />
– Min Min. spacing, spacing min min. width of the TLs<br />
• Take into account the tuning cell dimensions to the TL design (X-dimension)<br />
• Take into account MIM capacitors' dimensions<br />
– RRequirements i t ffrom th the ddesigner’s i ’ point i t of f view: i<br />
• Parameterized differential TL models<br />
– Accurate broadband modeling (DC to the 3rd harmonic)<br />
– Capture p all the effects<br />
» Conductor skin effect<br />
» Substrate skin effect<br />
» Coupling capacitance<br />
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