Model ID: 692
Thermal Drift in a Microwave Filter Cavity
Due to high power loads but also possibly from harsh environmental conditions (such as a cellular base station sitting in the sunshine in Phoenix), it is necessary to estimate the drift of the passband frequency due to thermal expansion.
It is easy to demonstrate that by using steel for the cylinder, a temperature-driven adjustment of the distance between the cylinder end and the brass box (where the adjustment screw is) can automatically compensate for most of the thermal drift.
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Microwave filters are used to eliminate unwanted frequency components in the output from microwave transmitters. Due to high power loads but also possibly from harsh environmental conditions), it is necessary to estimate the drift of the passband frequency due to thermal expansion. |
Engineering Fields
- Thermal Expansion
- RF & Microwave Applications
- Multiphysics
- Equation-Based Modeling
Application Areas
- RF Systems
