Topic: Electromagnetics
The phase difference between adjacent anode poles of Magnetron is generally
- A. zero radians
- B. $\pi/4$ radians
- C. $\pi/2$ radians
- D. $\pi$ radians
Answer: D. $\pi$ radians
Explanation: Reentrant oscillations are possible only if the total phase shift around the structure is an integer of $2\pi$ radians. i.e. $\phi_{n}=\frac{2\pi m}{N}$, N = number of reentrant cavities. Magnetron oscillations are ordinarily operated in $\pi$-mode.