1

GATE ECE 2022

MCQ (More than One Correct Answer)

+1

-0.33

A waveguide consists of two infinite parallel plates (perfect conductors) at a separation of 10^{$$-$$4} cm, with air as the dielectric. Assume the speed of light in air to be 3 $$\times$$ 10^{8} m/s. The frequency/frequencies of TM waves which can propagate in this waveguide is/are ___________.

2

GATE ECE 2014 Set 3

Numerical

+1

-0

Consider an air filled rectangular waveguide with a cross-section of $$5\,\,cm\,\, \times \,\,3\,cm$$. For this waveguide, the cut-off frequency (in MHz) of $$T{E_{21}}\,$$ mode is __________________

Your input ____

3

GATE ECE 2011

MCQ (Single Correct Answer)

+1

-0.3

The modes in a rectangular waveguide are denoted by $$T{E_{mn}}\,$$/$$T{M_{mn}}\,$$ where m and n are the eigen numbers along the larger and smaller dimensions of the waveguide respectively. Which one of the following satements is TRUE?

4

GATE ECE 2009

MCQ (Single Correct Answer)

+1

-0.3

Which of the following statements is true regarding the fundamental mode of the metallic waveguides shown?

Questions Asked from Waveguides (Marks 1)

Number in Brackets after Paper Indicates No. of Questions

GATE ECE Subjects

Signals and Systems

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

Network Theory

Control Systems

Digital Circuits

General Aptitude

Electronic Devices and VLSI

Analog Circuits

Engineering Mathematics

Microprocessors

Communications

Electromagnetics