| 1. | A rectangular waveguide operating in the dominant mode is gradually deformed into circular cross section in the direction of propagation. What is the mode at the output ? | |
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TE01
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TM01
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TM01
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TE01
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Report Question| 2. | For a wave propagating in an air filled rectangular waveguide ? | |
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guided wavelength is never less than the free space wavelength
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wave impedance is never less than the free space impedance
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TEM mode is possible if the dimensions of the waveguide are properly chosen
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propagation constant is always a real quantity
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| 3. | Which of the following modes can exist in a rectangular wave guide ? | |
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TM00
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TM10
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TE10
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TM01
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| 4. | The mode with lowest cut-off frequency for an electromagnetic wave propagating between two perfectly conducting parallel plates of infinite extent is ? | |
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TEM
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TM01
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TE10
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TM10
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| 5. | The dominant mode in a rectangular waveguide is TE10, because this mode has ? | |
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the highest cut-off wavelength
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no magnetic field component
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no cut-off
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no attenuation
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| 6. | Which one of the following modes of transmission will not be supported by a rectangular waveguide ? | |
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TE10
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TM01
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TE11
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TM11
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| 7. | In a rectangular waveguide with broader dimension a and narrow dimension b, the dominant mode of microwave propagation would be ? | |
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TM10
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TE10
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TM01
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TE01
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| 8. | Which is the dominant mode in rectangular waveguides ? | |
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TE10
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TE11
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TM11
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TM01
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| 9. | A disadvantage of microstrips, with respect to stripline circuits, is that they ? | |
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are bulkier
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are more likely to radiate
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do not lend themselves to printed circuit techniques
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None of the above
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| 10. | On a microstrip line the wavelength measured is 12 mm for a 10 GHz signal. The dielectric constant of the equivalent homogeneous line is ? | |
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3.5
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6.25
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5.5
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7
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