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. |
Field displacement isolators require higher bias field than resonance isolators. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
The electric field distribution of the forward and reverse waves in a ferrite slab-loaded waveguide is quite different. This property is used in: |
| A. | Field displacement resonator |
| B. | Resonance isolator |
| C. | Waveguide isolator |
| D. | None of the mentioned |
| Answer» B. Resonance isolator | |
| 3. |
The length of a ferrite slab required operating with a minimum forward insertion loss and 30 dB reverse attenuation and the reverse attenuation at this point is: |
| A. | 3 cm |
| B. | 2.4 cm |
| C. | 4 cm |
| D. | 3.6 cm |
| Answer» C. 4 cm | |
| 4. |
THE_ELECTRIC_FIELD_DISTRIBUTION_OF_THE_FORWARD_AND_REVERSE_WAVES_IN_A_FERRITE_SLAB-LOADED_WAVEGUIDE_IS_QUITE_DIFFERENT._THIS_PROPERTY_IS_USED_IN:?$ |
| A. | Field displacement resonator |
| B. | Resonance isolator |
| C. | Waveguide isolator |
| D. | None of the mentioned |
| Answer» B. Resonance isolator | |
| 5. |
Field_displacement_isolators_require_higher_bias_field_than_resonance_isolators.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
The length of a ferrite slab required operating with a minimum forward insertion loss and 30 dB reverse attenuation and the reverse attenuation at this point is? |
| A. | 3 cm |
| B. | 2.4 cm |
| C. | 4 cm |
| D. | 3.6 cm |
| Answer» C. 4 cm | |
| 7. |
An isolator has a very large operating bandwidth and independent of any isolator parameter. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
Forward attenuation provided by a resonance ferrite isolator is: |
| A. | Zero |
| B. | Low |
| C. | High |
| D. | None of the mentioned |
| Answer» C. High | |
| 9. |
The isolators constructed using ferrite materials must operate at: |
| A. | Gyro magnetic resonance |
| B. | Magnetic resonance |
| C. | Isolator resonance |
| D. | None of the mentioned |
| Answer» B. Magnetic resonance | |
| 10. |
The attenuation of a ________ is very large near the gyro magnetic resonance of the ferrite. |
| A. | Linearly polarized wave |
| B. | Circularly polarized wave |
| C. | Left polarized wave |
| D. | Right polarized wave |
| Answer» C. Left polarized wave | |
| 11. |
A very common application of isolator is to provide isolation between a low power source and the load. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
The matrix of an ideal isolator is not ______ |
| A. | Unitary |
| B. | Symmetric |
| C. | Lossless |
| D. | None of the mentioned |
| Answer» B. Symmetric | |
| 13. |
Ferrite isolators are ____ port microwave devices. |
| A. | Two |
| B. | Three |
| C. | Four |
| D. | None of the mentioned |
| Answer» B. Three | |