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Microwave resonators are used in 1. Microwave oscillators 2. Microwave narrowband amplifiers 3. microwave frequency meters Which of the above are correct?

Microwave resonators are used in 1. Microwave oscillators 2. Microwave narrowband amplifiers 3. microwave frequency meters Which of the above are correct? Correct Answer 1, 2 and 3

Microwave resonators are widely used in microwave oscillators, microwave narrowband amplifiers

 and microwave frequency meters because resonators have very narrow frequency band around the

 the resonant frequency and duality factor value is also high in the resonator circuit.

So, all the statements are correct.

Notes:

  • Microwave resonators are a frequency selective device and it is similar to the lumped-element resonators i.e. series or parallel R-L-C circuit.

  • Microwave oscillators are semiconductor devices that generator microwave radiation at a specific frequency only. Example: ring oscillator, I/Q oscillator, etc.

  • A microwave narrow band amplifier is a microwave amplifier that amplifies the signal with high amplitude and high power for a certain range of frequency example: traveling wave tube (TWT) amplifier.

  • A microwave frequency meter is a microwave instrument that measures the power of the signal at microwave frequencies.


Example: vibrating-reed frequency meter, moving-disk frequency meter

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