Other couplers MCQ’s

Electronics & Communication Engineering RF & Microwave Circuit Design

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

1. Schwinger reversed phase coupler is a waveguide coupler designed so that the path lengths for the two coupling apertures are the same for_________
a) Coupled port
b) Uncoupled port
c) Back port
d) Isolated port

2. The in phase combining of power at the coupled port is achieved by means of a _______
a) Matching network
b) A small slot
c) Quarter Wave transformer
d) None of the mentioned

3. Moreno crossed-guide coupler is a waveguide directional coupler consists of four waveguides at right angle.
a) True
b) False

4. Ribblet short-slot coupler consists of two waveguides that are separated by a distance “d”.
a) True
b) False

5. Symmetric tapered coupled line couplers offer higher bandwidth when compared to other forms of couplers.
a) True
b) False

6. _________ is a key component in the scalar or vector network analyzer.
a) Reflectometer
b) Radiometer
c) Frequency meter
d) None of the mentioned

7. Riblet-short slot coupler allows only:
a) TE10 mode of propagation
b) TE20 mode of propagation
c) Both a and b
d) None of the mentioned

8. The coupling and directivity of couplers with apertures in planar lines can be adjusted as per the requirement of the application.
a) True
b) False

9. Reflectometer can also be used as a frequency meter.
a) True
b) False

10. A basic Reflectometer circuit can be used to measure the _____________ magnitude of the unknown load.
a) Reflection coefficient
d) Standing wave ratio
c) Transmission coefficient
d) None of the mentioned

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