1
GATE ECE 2008
MCQ (Single Correct Answer)
+2
-0.6
One end of loss-less transmission line having the characteristic impedance of 75 $$\Omega $$ and length of 1 cm is short-ciruited. At 3 GHz, the input impedance at the other end of the transmission line is
A
0
B
Resistive
C
Capacitive
D
Inductive
2
GATE ECE 2007
MCQ (Single Correct Answer)
+2
-0.6
A load of 50 $$\Omega $$ is connected in shunt in a 2-wire transmission line of $$Z_0$$ = 50 $$\Omega $$ as shown in the Fig. The 2-port scattering parameter matrix (S-matrix) of the shunt element is GATE ECE 2007 Electromagnetics - Transmission Lines Question 14 English
A
$$\left[ {\matrix{ { - {1 \over 2}} & {{1 \over 2}} \cr {{1 \over 2}} & { - {1 \over 2}} \cr } } \right]$$
B
$$\left[ {\matrix{ 0 & 1 \cr 1 & 0 \cr } } \right]$$
C
$$\left[ {\matrix{ { - {1 \over 3}} & {{2 \over 3}} \cr {{2 \over 3}} & { - {1 \over 3}} \cr } } \right]$$
D
$$\left[ {\matrix{ {{1 \over 4}} & { - {3 \over 4}} \cr { - {3 \over 4}} & { - {1 \over 4}} \cr } } \right]$$
3
GATE ECE 2007
MCQ (Single Correct Answer)
+2
-0.6
The parallel branches of a 2-wire transmission line are terminated in 100 $$\Omega $$ and 200 $$\Omega $$ resistors as shown in the Fig. The characteristic impedance of the line is $$Z_0$$ = 50 $$\Omega $$ and each section has a length of $$\lambda /4$$. The voltage reflection coefficient $$\Gamma $$ at the input is: GATE ECE 2007 Electromagnetics - Transmission Lines Question 13 English
A
$$ - \,j\,{7 \over 5}$$
B
$$ - \,\,{5 \over 7}$$
C
$$j\,\,{5 \over 7}$$
D
$${5 \over 7}$$
4
GATE ECE 2005
MCQ (Single Correct Answer)
+2
-0.6
Voltage standing wave pattern in a lossless transmission line with characteristic impedance 50 $$\Omega $$ and a resistive load is shown in Fig. GATE ECE 2005 Electromagnetics - Transmission Lines Question 21 English The value of the load resistance is
A
50 $$\Omega $$
B
200 $$\Omega $$
C
12.5 $$\Omega $$
D
0 $$\Omega $$
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