For a directional coupler the power is in the ratio of

More Questions from Microwave Communication

• In a high frequency coaxial line and the length of line characteristic impedance is a function of
• The characteristic impedance of a cable is about
• In which of the following devices can the operation be visualised in terms of a series feedback loops?
• Assertion (A): In TE mode for rectangular waveguide. Reason (R): In TM mode for rectangular waveguide.
• The secondary constants of a line are
• To ensure that only dominant TE10 mode propagates in a rectangular waveguide, the operating frequency
• Z0 = (Zoc Zsc)0.5
• Characteristic impedance of a coaxial cable is inversely proportional to ∈r.
• The following components are used to measure power output of a 2 kW TWT amplifier TWT Low pass/High pass filter Low power 20 dB attenuator 40 dB directional coupler with matched load Power meter. The correct sequence of connections of these components is:
• Hollow waveguides are used as transmission lines at frequencies

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