1
GATE ECE 2024
Numerical
+2
-0

A lossless transmission line with characteristic impedance $Z_0 = 50 \Omega$ is terminated with an unknown load. The magnitude of the reflection coefficient is $|\Gamma| = 0.6$. As one moves towards the generator from the load, the maximum value of the input impedance magnitude looking towards the load (in $\Omega$) is _________.

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2
GATE ECE 2023
MCQ (More than One Correct Answer)
+2
-0

The standing wave ratio on a 50 $$\Omega$$ lossless transmission line terminated in an unknown load impedance is found to be 2.0. The distance between successive voltage minima is 30 cm and the first minimum is located at 10 cm from the load. $$Z_L$$ can be replaced by an equivalent length $$l_m$$ and terminating resistance $$R_m$$ of the same line. The value of $$R_m$$ and $$l_m$$, respectively, are

GATE ECE 2023 Electromagnetics - Transmission Lines Question 3 English

A
$$R_m=100~\Omega,l_m=20~\mathrm{cm}$$
B
$$R_m=25~\Omega,l_m=20~\mathrm{cm}$$
C
$$R_m=100~\Omega,l_m=5~\mathrm{cm}$$
D
$$R_m=25~\Omega,l_m=5~\mathrm{cm}$$
3
GATE ECE 2023
MCQ (More than One Correct Answer)
+2
-0

The following circuit(s) representing a lumped element equivalent of an infinitesimal sectioin of a transmission line is/are

A
GATE ECE 2023 Electromagnetics - Transmission Lines Question 4 English Option 1
B
GATE ECE 2023 Electromagnetics - Transmission Lines Question 4 English Option 2
C
GATE ECE 2023 Electromagnetics - Transmission Lines Question 4 English Option 3
D
GATE ECE 2023 Electromagnetics - Transmission Lines Question 4 English Option 4
4
GATE ECE 2016 Set 2
Subjective
+2
-0
A microwave circuit consisting of lossless transmission lines $$T_1$$ and $$T_2$$ is shown in the figure. The plot shows the magnitude of the input reflection coefficient $$\Gamma $$ as a function of frequency f. The phase velocity of the signal in the transmission lines is $$2\, \times \,{10^8}$$ m/s GATE ECE 2016 Set 2 Electromagnetics - Transmission Lines Question 8 English 1 GATE ECE 2016 Set 2 Electromagnetics - Transmission Lines Question 8 English 2
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