Spherical Cavity Resonant Damping through the Use of an Impedance Loaded Shell Inside the Chamber.
Final rept. 28 Sep 73-31 Mar 74,
DIKEWOOD CORP ALBUQUERQUE N MEX
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This report addresses itself to one aspect of a simulator concept for simulating EMP in exoatmospheric regions by the incorporation of a spherical vacuum test chamber. Many important features affect the electromagnetic interactions of a space system with this type of spherical cavity. One of these is the problem of resonance. The report presents a complete parameter study of the resonant frequencies of a perfectly conducting spherical chamber with an inner spherically shaped impedance loaded damping structure. Frequency shifts are given for a wide range of damper location and loading. The resulting cavity damping is given for several lower order E and H modes.
- Test Facilities, Equipment and Methods
- Radiofrequency Wave Propagation