11. Apart from the resonant cavity , the Extended Interaction Oscillator is very similar to more conventional klystrons. 12. A third test article, the experimental control, had an RF load but no resonant cavity interior. 13. The resonant cavity is formed by the highly reflective nickel cathode and the semitransparent grid anode. 14. Two examples of such standard resonant cavities are rectangular and circular waveguide cavities and coaxial cables resonators. 15. The limited dimensions of the earth cause this waveguide to act as a resonant cavity for electromagnetic waves. 16. Considerable attention has been paid to the removal or filling of unnecessary surface join gaps and resonant cavities . 17. Additionally, very loud sounds can be made by explosions directed into, or being detonated inside of resonant cavities . 18. Another design for X-band ( 10 GHz ) is a resonant cavity which can be changed in length. 19. In 2014, the group began testing resonant cavity thrusters of their own design and sharing some of their results. 20. The resonant cavity is terminated by a dielectric mirror that reflects at 1064 nm and transmits at 532 nm.
