Explore topic-wise MCQs in Microwave Engineering.

This section includes 4 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.

If is 0.3 for a circular wave guide operating in TM12 mode with P21=5.315, with the radius of the circular waveguide being equal to 25 mm, then the intrinsic impedance of the wave is:

A. 0.55
B. 0.4
C. 0.3
D. 1.2
Answer» B. 0.4
Discussion
2.

For TM01 mode of propagation in a circular waveguide with P01=2.405, with the inner diameter of the circular waveguide being equal to 25 mm. What is the cut off frequency for this mode of propagation?

A. 2.8 GHz
B. 6 GHz
C. 3.06 GHz
D. 4 GHz.
Answer» D. 4 GHz.
Discussion
3.

What is the cutoff frequency for TE mode in a circular waveguide of radius 2 cm with P = 1.841?

A. 5.5 GHz
B. 4.3 GHz
C. 7.7 GHz
D. 8.1 GHz
Answer» C. 7.7 GHz
Discussion
4.

Bessel s differential equation for a circular waveguide is:

A. <sup>2</sup>(d<sup>2</sup>R/ d <sup>2</sup>) + (dR/d ) + ( <sup>2</sup>kC<sup>2</sup> n<sup>2</sup>) R=0
B. n<sup>2</sup>(d<sup>2</sup>R/ d <sup>2</sup>) + n(dR/d ) + ( <sup>2</sup>kC<sup>2</sup> n<sup>2</sup>) R=0
C. d<sup>2</sup>R/ d <sup>2</sup> + dR/d + ( <sup>2</sup>kC<sup>2</sup> n<sup>2</sup>) R=0
D. None of the mentioned
Answer» B. n<sup>2</sup>(d<sup>2</sup>R/ d <sup>2</sup>) + n(dR/d ) + ( <sup>2</sup>kC<sup>2</sup> n<sup>2</sup>) R=0
Discussion