GATE ECE 2008 | Transmission Lines Question 32 | Electromagnetics

GATE ECE 2008

MCQ (Single Correct Answer)

-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

Resistive

Capacitive

Inductive

GATE ECE 2007

MCQ (Single Correct Answer)

-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 23 English

GATE ECE 2007 Electromagnetics - Transmission Lines Question 23 English

$$ - \,j\,{7 \over 5}$$

$$ - \,\,{5 \over 7}$$

$$j\,\,{5 \over 7}$$

$${5 \over 7}$$

GATE ECE 2007

MCQ (Single Correct Answer)

-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 24 English

GATE ECE 2007 Electromagnetics - Transmission Lines Question 24 English

$$\left[ {\matrix{ { - {1 \over 2}} & {{1 \over 2}} \cr {{1 \over 2}} & { - {1 \over 2}} \cr } } \right]$$

$$\left[ {\matrix{ 0 & 1 \cr 1 & 0 \cr } } \right]$$

$$\left[ {\matrix{ { - {1 \over 3}} & {{2 \over 3}} \cr {{2 \over 3}} & { - {1 \over 3}} \cr } } \right]$$

$$\left[ {\matrix{ {{1 \over 4}} & { - {3 \over 4}} \cr { - {3 \over 4}} & { - {1 \over 4}} \cr } } \right]$$

GATE ECE 2005

MCQ (Single Correct Answer)

-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 31 English