MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Microwave Engineering Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A three section binomial transformer is used to match a 100Ω transmission line to a 50Ω transmission line. Then the value of the constant ‘A’ for this design is: |
| A. | -0.0433 |
| B. | 0.0433 |
| C. | 0.01 |
| D. | -0.01 |
| Answer» B. 0.0433 | |
| 2. |
The reflection coefficient ГN in terms of successive impedances Zn and Zn+1 when multisection transformers are used in a binomial matching transformer is given by: |
| A. | 0.5ln (Zn+1/Zn) |
| B. | ln (Zn+1/Zn) |
| C. | 0.5ln (Zn/Zn+1) |
| D. | (Zn/Zn+1) |
| Answer» B. ln (Zn+1/Zn) | |
| 3. |
The condition │Г (θ) │=0 for θ=π/2 of a binomial multi section transformer corresponds to the: |
| A. | upper cutoff frequency |
| B. | lower cutoff frequency |
| C. | center frequency |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 4. |
To obtain a flat curve in the response of a binomial multisection transformer, N-1 derivatives of │Г (θ) │are set to zero. This implies: |
| A. | the frequency sensitivity of the matching section is increased linearly |
| B. | the frequency sensitivity of the matching section is increased exponentially |
| C. | roll off in the curve is increased |
| D. | none of the mentioned |
| Answer» E. | |
| 5. |
If a quality binomial matching transformer gives a good flat response curve, it is called “maximally flat”. |
| A. | true |
| B. | false |
| Answer» B. false | |