Skin effect is more pronounced at high frequencies.

More Questions from Microwave Communication

• In a backward wave oscillator the wave travelling along the line winds itself back and forth
• A quarter wave line open circuited at far end behaves as
• Assertion (A): Artificial transmission lines are frequently used in laboratories. Reason (R): An artificial transmission line can be used to represent an actual line and can also be used as a delay circuit, as attenuator, as filter network etc.
• In a TWT the amplitude of resultant wave travelling down the helix
• In a turnstile antenna two-half wave resonant wire radiators are placed at 90° to each other in the same plane and are excited
• The frequency of oscillation in a backward wave oscillator can be changed by
• Assertion (A): The impedance of a matched load is equal to characteristic impedance of line. Reason (R): A matched termination absorbs all the power incident on it.
• Which of the following is not a travelling wave?
• Which of the following parameters is negligible in transmission lines?
• Which of the following devices uses a helix?

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