Feed Methods of Microstrip Antenna MCQ’s

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This set of Antenna Multiple Choice Questions & Answers (MCQs) focuses on “Feed Methods of Microstrip Antenna”.

1. Which of the following fed line is connected to patch just like a conducting strip?
a) Microstrip line feed
b) Coaxial feed
c) Aperture coupling
d) Proximity Coupling

2. Which of the following feed line contains two different substrates separated by a ground plane?
a) Microstrip line feed
b) Coaxial feed
c) Aperture coupling
d) Proximity Coupling

3. Which of the following is used to excite to radiate the antenna?
a) Feed line
b) Ground plane
c) Patch
d) Substrate

4. Which of the following is true regarding the coaxial coupling feed in Microstrip antenna?
a) Inner conductor is connected to patch and outer conductor to ground plane
b) Outer conductor is connected to patch and inner conductor to ground plane
c) It is connected to patch just like a conducting strip
d) It contains two different substrates separated by a ground plane

5. Which of the following is the disadvantage of Microstrip line feeding?
a) Spurious feed radiation increases with increase in substrate thickness
b) Spurious feed radiation decreases with increase in substrate thickness
c) There is no Bandwidth limit
d) Low spurious radiation

6. Which of the following allows independent optimization of feed mechanism?
a) Microstrip line feed
b) Coaxial feed
c) Aperture coupling
d) Proximity Coupling

7. Which of the following feed line uses the length of stub and L/W ratio to control the match?
a) Microstrip line feed
b) Coaxial feed
c) Aperture coupling
d) Proximity Coupling

8. Which of the following is the disadvantage of the coaxial feeding?
a) Fabrication is very difficult
b) Low spurious radiation
c) Narrow Bandwidth
d) No generation of higher order modes

9. Which of the following feeding has largest bandwidth?
a) Microstrip line feed
b) Coaxial feed
c) Aperture coupling
d) Proximity Coupling

10. In aperture coupling, ground plane is used to minimize the inference due to spurious radiation.
a) True
b) False

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