1. The real Earth ionosphere waveguide is not a perfect electromagnetic resonant cavity. 2. :Microwave ovens form a resonant cavity with a frequency around 2.45 GHz. 3. Sound is further shaped by the characteristics of the guitar body's resonant cavity. 4. In the reflex klystron the electron beam passes through a single resonant cavity. 5. Microwave resonant cavities can be represented and thought of as simple LC circuits. 6. The resonant cavity is fixed at a frequency in the super high frequency band. 7. Instead methods such as stripline or resonant cavities are used. 8. The basic setup for an FMR experiment is a microwave resonant cavity with an electromagnet. 9. A resonant cavity will have a maximum reflection when on resonance with the input source. 10. In July 2014, Eagleworks reported tentative positive results for evaluating a tapered RF resonant cavity.