Cavity Resonators – Exercise – 1

Cavity Resonators » Exercise – 1

1. A half-wavelength, close section of a waveguide that acts as a parallel resonant circuit is known as a(n) :

(a) half-wave section
(b) cavity resonator
(c) directional coupler
(d) LCR circuit

2. The cavity resonator :

(a)  is equivalent to an LC resonant circuit
(b)  in a reflect klystron has its output taken from the reflector plate
(c)  produces a frequency which is independent of the cavity size
(d)  has a low Q factor for narrow operation

3. The reflex klystron is often preferred to the two cavity klystron oscillator because the former :

(a) Is more efficient
(b) Has higher number of modes
(c) Is easier to tune
(d) Produces a higher output power

4. Which of the following is not an application of microwave cavities :

(a) Band pass filter
(b) Band stop filter
(c) Oscillator frequency control
(d) Detector

5. Which microwave tube uses for buncher and catcher cavities ?

(a) Magnetron
(b) Klystron
(c) Reflex Klystron
(d) Travelling-wave-tube

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