Tapered Lines MCQ’s

Electronics & Communication Engineering RF & Microwave Circuit Design

This set of RF & Microwave Circuit Design Multiple Choice Questions & Answers (MCQs) focuses on “Tapered Lines”.

1. Passband characteristics of tapered lines differ from one type of taper to another.
a) True
b) False

2. For a continually tapered line, the incremental reflection co-efficient is:
a) ∆Z/2Z
b) 2Z/∆Z
c) ∆Z0/2Z0
d) None of the mentioned

3. A single section tapered line is more efficient in impedance matching than a multisection tapered line for impedance matching.
a) True
b) False

4. The variation of impedance of an exponentially tapered line along the length of the line is given by:
a) Z(z)=Z0eaz
b) Z(z)=Z0e-az
c) Z(z)=Z0e2az
d) Z(z)=Z0e-2az

5. Reflection co-efficient magnitude response is an exponential curve for tapered line.
a) True
b) False

6. The maximum passband ripple in a Klopfenstein taper matching section is:
a) Г0/cos h A
b) Г0/sin h A
c) Г0/ tan h A
d) None of the mentioned

7. The value of constant ‘a’ for an exponentially tapered line of length 5 cm with load impedance being 100Ω and characteristic impedance of the line is 50Ω is:
a) 0.1386
b) 0.265
c) 0.5
d) 0.2

8. Triangular taper is the best solution for any impedance matching requirement.
a) True
b) False

9. For any load impedance, perfect match can be obtained and the minimum reflection co-efficient achieved can be zero.
a) True
b) False

10. A perfect match can be obtained in the passband for any impedance matching circuit around the center frequency for which it is defined.
a) True
b) False

11. For a given load (a fixed RC product), a broader bandwidth can be achieved with a low reflection co-efficient in the passband.
a) True
b) False

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