Combline Cavity Filter Design in HFSS
Combline Cavity Filter Design in HFSS
Combline Cavity Filter Design in HFSS
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<strong>Combl<strong>in</strong>e</strong> <strong>Filter</strong> Tun<strong>in</strong>g with Ansoft <strong>HFSS</strong><br />
Summary and Comments<br />
Summary<br />
A design approach for cavity combl<strong>in</strong>e filters was presented where the <strong>in</strong>itial<br />
design was generated with a filter synthesis tool, followed by parametric analysis<br />
<strong>in</strong> Ansoft <strong>HFSS</strong>. Ansoft <strong>Design</strong>er was used to dynamically review the data and<br />
tune the filter with its Tun<strong>in</strong>g Bar <strong>in</strong>terface.<br />
After demonstrat<strong>in</strong>g this approach, a proprietary model of Sierra Microwave<br />
Technologies was presented with a comparison of Ansoft <strong>HFSS</strong> simulation to<br />
measured results.<br />
Comments<br />
With the <strong>in</strong>crease complexity of filter design, such as partially filled dielectric<br />
volumes and unique launch configurations, the more 3D EM simulation is<br />
needed to design a filter that is “tunable” on the bench.<br />
www.optimal-designs.com 14
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