1
GATE ECE 2010
MCQ (Single Correct Answer)
+1
-0.3
If the scattering matrix [S] of a two port network is $$$\left[ S \right] = \left[ {\matrix{ {0.2\,\angle \,\,{0^ \circ }} & {0.9\,\,\angle \,\,{{90}^ \circ }} \cr {0.9\,\angle \,\,{{90}^ \circ }} & {0.1\,\angle \,{{90}^ \circ }} \cr } } \right]$$$ then the network is
A
lossless and reciprocal
B
lossless but not reciprocal
C
not lossless but reciprocal
D
neither lossless nor reciprocal
2
GATE ECE 2005
MCQ (Single Correct Answer)
+1
-0.3
Many circles are drawn in a Smith chart used for transmission line calculations. The circles shown in Fig. represent GATE ECE 2005 Electromagnetics - Transmission Lines Question 48 English
A
unit circles
B
constant resistance circles.
C
constant reactance circles.
D
constant reflection coefficient circles.
3
GATE ECE 2002
MCQ (Single Correct Answer)
+1
-0.3
The VSWR can have any value between
A
0 and 1
B
- 1 and + 1
C
0 and $$\infty $$
D
1 and $$\infty $$
4
GATE ECE 2002
MCQ (Single Correct Answer)
+1
-0.3
In an impedance Smith chart, a clockwise movement along a constant resistance circle gives rise to
A
a decrease in the value of reactance
B
an increase in the value of reactance
C
no change in the reactance value
D
no change in the impedance value
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