VTM stands for voltage tunable magnetron.

More Questions from Microwave Communication

• The main advantage of TWT over klystron is
• Fields are said to be circularly polarized if
• The frequency of oscillations obtained from a reflex klystron depends mainly on
• Assertion (A): Two equal and opposite travelling waves result in a standing wave. Reason (R): The ratio of maximum to minimum value of a standing wave is called SWR.
• In TE and TM modes of rectangular waveguides having propagation in z direction
• Assertion (A): In circular waveguide the attenuation of TE01 mode decreases as the operating frequency increases. Reason (R): The wall currents in a circular waveguide in TEQ1 mode are completely circumferential.
• When a wave reaches an open circuit
• In a rectangular waveguide there is one half wave variation of electric field across the narrow dimension and two half wave variations of electric field across wider dimension. The dominant mode is
• Wave guides are pressurised above normal atmospheric pressure for
• Assertion (A): In a power divider SH = 0, S21 = 0.707 = S3, Reason (R): In a power divider the input port (i.e., port 1) is matched and incident power is equally divided in output ports 2 and 3

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