Sonnet User's Guide - Sonnet Software

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Sonnet User’s Guide 3. Nearby objects should be placed so that coupling between the Component and the object does not occur: Metal polygons, vias, or dielectric bricks which couple to the Component ports may decrease the accuracy of the analysis as shown below. 4. All ports must be on a single metal level: Sonnet does not support multi-level Components. 5. Multiple ports on the same side of a Component should be aligned: In the illustration below, the ports on Comp1 are placed incorrectly and will produce an error during an analysis. The ports on comp2 are placed correctly. Wrong Correct The dashed lines represent the alignment plane. 6. Reference planes must be the same length for each side of a Component: However, reference planes can be set independently for each side of the “port rectangle” as shown below. 94
Chapter 6 Components Analysis of a Component Data File Frequencies When using a data file Component type, frequencies in your data file do not need to precisely match the Sonnet analysis frequencies. The analysis engine will interpolate between data file frequencies if necessary, but it will not extrapolate outside the frequency range of the data file. Rerunning an Analysis When the analysis engine analyzes your circuit with a Component, it first performs an electromagnetic analysis of the geometry, then uses circuit theory to connect the Component to the geometry. If you change the data file used for a Component or the value and/or type of an ideal component, in subsequent analyses em only needs to perform the circuit theory part of the analysis, significantly reducing processing time. Please note that any graphs of the response are not automatically updated. Instead, you need to select Graph ⇒ Freshen Files to update your graph in the response viewer. 95
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