| 1. | Cut-off wavelength for rectangular waveguide of a = 5 cm; b=4 cm supporting TE10 mode is ? | |
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8 cm
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2 cm
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6 cm
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10 cm
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Report Question| 2. | The cut-off wavelength of a rectangular waveguide of dimension 2 cm x 4 cm is ? | |
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4 cm
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2 cm
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8 cm
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None of the above
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| 3. | A waveguide section in a microwave circuit acts as ? | |
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Band stop filter
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LP filter
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Bandpass filter
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High Pass filter
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| 4. | A waveguide section in a microwave circuit acts as ? | |
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Highpass filter
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Band stop filter
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Bandpass filter
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Lowpass filter
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| 5. | In a TWT the amplitude of resultant wave travelling down the helix ? | |
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decreases exponentially
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increases exponentially
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is almost constant
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increases linearly
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| 6. | Evanescent mode attenuation in a waveguide depends upon the ? | |
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operating frequency
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conductivity of the dielectric filling in the waveguide
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standing waves in the guide
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conductivity of the guide walls
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| 7. | Screw projecting into the waveguide ? | |
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is capacitive discontinuity
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may be capacitive or inductive depending upon the position inside the guide
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is inductive discontinuity
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None of the above
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| 8. | A cavity resonator can be represented by ? | |
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an LCR circuit
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a lossy inductor
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an LC circuit
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a lossy capacitor
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| 9. | Strictly speaking, the propagating mode that is excited in a micro strip transmission line is ? | |
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non-TEM mode
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only TE mode
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only TEM mode
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only TM mode
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| 10. | A strip line is analogous to a ? | |
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rectangular waveguide
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coaxial line
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parallel wire line
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circular waveguide
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