MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Microwave Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In the non-ideal scattering matrix representation of the circulator, the attenuation constant and phase constant α, β respectively are approximated as 1. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
In the plot of the magnitude of electric field around the periphery of the junction circulator, the curve has: |
| A. | Three peaks |
| B. | Two peaks |
| C. | Four peaks |
| D. | None of the mentioned |
| Answer» B. Two peaks | |
| 3. |
The dielectric resonator in the circulator has a single highest order resonant mode. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
IN_THE_PLOT_OF_THE_MAGNITUDE_OF_ELECTRIC_FIELD_AROUND_THE_PERIPHERY_OF_THE_JUNCTION_CIRCULATOR,_THE_CURVE_HAS:?$ |
| A. | Three peaks |
| B. | Two peaks |
| C. | Four peaks |
| D. | None of the mentioned |
| Answer» B. Two peaks | |
| 5. |
In_the_non-ideal_scattering_matrix_representation_of_the_circulator,_the_attenuation_constant_and_phase_constant_α,_β_respectively_are_approximated_as_1.$# |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
The dielectric resonator in the circulator has a single highest order resonant mode? |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
In a stripline junction circulator, the ferrite material is present in the form of a: |
| A. | Slab |
| B. | Ferrite disk |
| C. | Ferrite material is not used in a microstrip circulator |
| D. | Ferrite cubes |
| Answer» C. Ferrite material is not used in a microstrip circulator | |
| 8. |
In the scattering matrix representation of a non-ideal circulator, the diagonal elements of the matrix are: |
| A. | Zero |
| B. | One |
| C. | Reflection coefficient –ì |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 9. |
A circulator device can also used as an isolator with a few modifications. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
Practically, opposite circulatory in a ferrite circulator can be obtained by: |
| A. | Changing the order of port operation |
| B. | Impedance matching the input ports |
| C. | Changing the polarity of the magnetic bias field |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 11. |
There is no method in which the scattering matrix of the opposite circularity can be obtained from the matrix we have. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
The total number of ones in the scattering matrix of an ideal circulator is: |
| A. | 4 |
| B. | 3 |
| C. | 2 |
| D. | 5 |
| Answer» C. 2 | |
| 13. |
________ is a three-port microwave device that can be lossless and matched at all spots. |
| A. | Hybrid junction |
| B. | Magic Tee |
| C. | Circulator |
| D. | Isolator |
| Answer» D. Isolator | |