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1. |
If the distance between the two plates of a parallel plate waveguide is 20 mm and is operating in TE₂ mode, then the cut off frequency of TE₂ mode is: |
A. | 20 MHz |
B. | 15 GHz |
C. | 5 GHz |
D. | None of the mentioned |
Answer» C. 5 GHz | |