1

GATE ECE 2014 Set 3

MCQ (Single Correct Answer)

+1

-0.3

In the following figure, the transmitter Tx sends a wideband modulated RF signal via a coaxial cable to the receiver Rx. The output impedance $${Z_T}$$ of Tx, the characteristic impedance $${Z_0}$$ of the cable and the input impedance $${Z_R}$$ of Rx are all real.
Which one of the following statements is TRUE about the distortion of the received signal due to impedance mismatch?

2

GATE ECE 2014 Set 2

Numerical

+1

-0

To maximize power transfer, a lossless transmission line is to be matched to a resistive load impedance via a $$\lambda /4$$ transformer as shown.

Your input ____

3

GATE ECE 2013

MCQ (Single Correct Answer)

+1

-0.3

The return loss of a device is found to be 20 dB. The voltage standing wave ratio (VSWR) and magnitude of reflection coefficient are respectively.

4

GATE ECE 2012

MCQ (Single Correct Answer)

+1

-0.3

A coaxial cable with an inner diameter of 1 mm and outer diameter of 2.4 mm is filled with a dielectric of relative permittivity 10.89. Given $${\mu _0} = \,4\,\pi \, \times \,{10^{ - 7}}$$

$$H/m,\,\,{\varepsilon _0} = {{{{10}^{ - 9}}\,} \over {36\,\pi }}\,F/m,$$ the characteristic impedance of the cable is

$$H/m,\,\,{\varepsilon _0} = {{{{10}^{ - 9}}\,} \over {36\,\pi }}\,F/m,$$ the characteristic impedance of the cable is

Questions Asked from Transmission Lines (Marks 1)

Number in Brackets after Paper Indicates No. of Questions

GATE ECE 2017 Set 2 (1)
GATE ECE 2017 Set 1 (1)
GATE ECE 2016 Set 1 (1)
GATE ECE 2015 Set 3 (1)
GATE ECE 2014 Set 3 (1)
GATE ECE 2014 Set 2 (1)
GATE ECE 2013 (1)
GATE ECE 2012 (1)
GATE ECE 2011 (1)
GATE ECE 2010 (2)
GATE ECE 2005 (1)
GATE ECE 2002 (2)
GATE ECE 2001 (1)
GATE ECE 2000 (1)
GATE ECE 1999 (1)
GATE ECE 1998 (1)
GATE ECE 1997 (1)
GATE ECE 1996 (2)
GATE ECE 1994 (1)

GATE ECE Subjects

Signals and Systems

Representation of Continuous Time Signal Fourier Series Fourier Transform Continuous Time Signal Laplace Transform Discrete Time Signal Fourier Series Fourier Transform Discrete Fourier Transform and Fast Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Discrete Time Linear Time Invariant Systems Transmission of Signal Through Continuous Time LTI Systems Sampling Transmission of Signal Through Discrete Time Lti Systems Miscellaneous

Network Theory

Control Systems

Digital Circuits

General Aptitude

Electronic Devices and VLSI

Analog Circuits

Engineering Mathematics

Microprocessors

Communications

Electromagnetics