These analysis uses cylindrical coordinates.
In circular waveguide TE11 mode has the lowest cut off frequency and is the dominant mode.
If D is diameter of waveguide
?c = 1.706 D for TE11 mode
?c = 1.029 D for TE21 mode
?c = 0.82 D for TE01 mode
?c = 1.306 D for TM01 mode.
List I | List II | ||
---|---|---|---|
A. | 200 MHz | 1. | SHF |
B. | 20 GHz | 2. | UHF |
C. | 500 kHz | 3. | VHF |
D. | 500 MHz | 4. | MF |
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