Explore topic-wise MCQs in Microwave Engineering.

This section includes 22 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.

Fields of TEM mode on strip line must satisfy:

A. Laplace’s equation
B. Ampere’s circuital law
C. Gaussian law
D. None of the mentioned
Answer» B. Ampere’s circuital law
Discussion
2.

If the dielectric material used between the grounded plates of a stripline is 2.2, when the strip line operating at 8 GHz, the wavelength on stripline is:

A. 1.2 cm
B. 2.52 cm
C. 0.15 cm
D. 3.2 cm
Answer» C. 0.15 cm
Discussion
3.

If the loss tangent is 0.001 for a stripline operating at 12 GHz with the relative permittivity of the dielectric material being used equal to 2.6, then the conductor loss is:

A. 0.102
B. 0.202
C. 0.001
D. 0.002
Answer» C. 0.001
Discussion
4.

The wave number of a stripline operating at a frequency of 10 GHz is:

A. 401
B. 155
C. 206
D. 310
Answer» E.
Discussion
5.

If the effective width of the center conductor is 3 mm and the distance between the two ground plates is 0.32 cm with the material of the dielectric used having a relative permittivity of 2.5, then what is the characteristic impedance of the strip line?

A. 50Ω
B. 71.071Ω
C. 43.24Ω
D. 121Ω
Answer» D. 121Ω
Discussion
6.

The expression for characteristic impedance Zₒ of a stripline is:

A. (30πb/√∈r)(1/We+0.441b)b) (30πb) (1/We+0.441b)c) 30π/√∈rd) (1/We+0.441
B. (30πb) (1/We+0.441b)
C. 30π/√∈r
D. (1/We+0.441b)
Answer» B. (30πb) (1/We+0.441b)
Discussion
7.

If the phase velocity in a stripline is 2.4*108m/s, and the capacitance per unit length of a micro stripline is 10pF/m, then the characteristic impedance of the line:

A. 50 Ω
B. 41.6 Ω
C. 100 Ω
D. None of the mentioned
Answer» C. 100 Ω
Discussion
8.

Expression for propagation constant β of a strip line is:

A. ω(√µ∈∈r)
B. ω(√µₒ/√∈r)
C. ω/(√µₒ∈ₒ∈r)
D. c/(√µₒ∈ₒ∈r)
Answer» B. ω(√µₒ/√∈r)
Discussion
9.

If the dielectric material filled between the round plates of a microstrip line has a relative permittivity of 2.4, then the phase velocity is:

A. 1.3*108 m/s
B. 1.9*108 m/s
C. 3*108 m/s
D. 2*108 m/s
Answer» C. 3*108 m/s
Discussion
10.

The higher order wave guide modes of propagation can be avoided in a strip line by:

A. Restricting both the ground plate spacing and the sidewall width to less than λd/2
B. Restricting both the ground facing plate spacing and the sidewall width to less than λd
C. Filling the region between 2 plates with di electric
D. Restricting both the ground plate spacing and the sidewall width between λg and λg/2
Answer» B. Restricting both the ground facing plate spacing and the sidewall width to less than λd
Discussion
11.

THE_WAVE_NUMBER_OF_A_STRIPLINE_OPERATING_AT_A_FREQUENCY_OF_10_GHZ_IS:?$

A. 401
B. 155
C. 206
D. 310
Answer» E.
Discussion
12.

If the dielectric material used between the grounded plates of a stripline is 2.2, when the strip line operating at 8 GHz, the wavelength on stripline is:$

A. 1.2 cm
B. 2.52 cm
C. 0.15 cm
D. 3.2 cm
Answer» C. 0.15 cm
Discussion
13.

If_the_loss_tangent_is_0.001_for_a_stripline_operating_at_12_GHz_with_the_relative_permittivity_of_the_dielectric_material_being_used_equal_to_2.6,_then_the_conductor_loss_is:$

A. 0.102
B. 0.202
C. 0.001
D. 0.002
Answer» C. 0.001
Discussion
14.

Fields_of_TEM_mode_on_strip_line_must_satisfy:

A. Laplace’s equation
B. Ampere’s circuital law
C. Gaussian law
D. None of the mentioned
Answer» B. Ampere‚Äö√Ñ√∂‚àö√ë‚àö¬•s circuital law
Discussion
15.

If the effective width of the center conductor is 3 mm and the distance between the two ground plates is 0.32 cm with the material of the dielectric used having a relative permittivity of 2.5, then what is the characteristic impedance of the strip line?

A. 50Ω
B. 71.071Ω
C. 43.24Ω
D. 121Ω
Answer» D. 121‚âà√≠¬¨¬©
Discussion
16.

The expression for characteristic impedance Z‚Çí of a stripline is:$

A. (30πb/√∈<sub>r</sub>)(1/W<sub>e</sub>+0.441b)
B. (30πb) (1/W<sub>e</sub>+0.441b)
C. 30π/√∈<sub>r</sub>
D. (1/W<sub>e</sub>+0.441b)
Answer» B. (30‚âà√¨‚àö√ëb) (1/W<sub>e</sub>+0.441b)
Discussion
17.

If the phase velocity in a stripline is 2.4*108m/s, and the capacitance per unit length of a micro stripline is 10pF/m, then the characteristic impedance of the line:

A. 50 Ω
B. 41.6 Ω
C. 100 Ω
D. None of the mentioned
Answer» C. 100 ‚âà√≠¬¨¬©
Discussion
18.

Expression for propagation constant β of a strip line is:$

A. ω(√µ∈∈<sub>r</sub>)
B. ω(√µₒ/√∈<sub>r</sub>)
C. ω/(√µₒ∈ₒ∈<sub>r</sub>)
D. c/(√µₒ∈ₒ∈<sub>r</sub>)
Answer» B. ‚âà√¨‚àö¬¢(‚Äö√Ñ√∂‚àö‚Ć‚àö‚àǬ¨¬®¬¨¬µ‚Äö√Ñ√∂‚àö√°‚àö‚â†/‚Äö√Ñ√∂‚àö‚Ć‚àö‚àÇ‚Äö√Ñ√∂‚àö‚Ć‚àö‚Ć<sub>r</sub>)
Discussion
19.

If the dielectric material filled between the round plates of a microstrip line has a relative permittivity of 2.4, then the phase velocity is:

A. 1.3*10<sup>8</sup> m/s
B. 1.9*10<sup>8</sup> m/s
C. 3*10<sup>8</sup> m/s
D. 2*10<sup>8</sup> m/s
Answer» C. 3*10<sup>8</sup> m/s
Discussion
20.

Stripline can be compared to a:

A. Flattened rectangular waveguide
B. Flattened circular waveguide
C. Flattened co axial cable
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
21.

The higher order wave guide modes of propagation can be avoided in a strip line by:

A. Restricting both the ground plate spacing and the sidewall width to less than λ<sub>d</sub>/2
B. Restricting both the ground facing plate spacing and the sidewall width to less than λ<sub>d</sub>
C. Filling the region between 2 plates with di electric
D. Restricting both the ground plate spacing and the sidewall width between λ<sub>g</sub> and λ<sub>g</sub>/2
Answer» B. Restricting both the ground facing plate spacing and the sidewall width to less than ‚âà√≠¬¨‚Ñ¢<sub>d</sub>
Discussion
22.

Which mode of propagation is supported by a strip line?

A. TEM mode
B. TM mode
C. TE mode
D. None of the mentioned
Answer» B. TM mode
Discussion