22EC4204 TLW practice quiz3

The modes of wave propagation that a parallel plate waveguide can support are ____________

• TEM, TE, TM modes

• TM, TE modes

• TEM, TM modes

• TEM, TE modes

The fringe effect can be neglected in a parallel plate waveguide is because of ____________

• The dielectric material used

• Width of the plates is greater than the distance between the plates

• Material of the parallel plate waveguide used

• None of the options mentioned

In TM mode, if the direction of wave propagation is in 'z' direction, then:

• HZ=0

• EZ=0

• EY=0

• HY=0

The wave impedance of a TM mode in a parallel plate waveguide is a ________

• Function of frequency

• Independent of frequency

• Proportional to square of frequency

• Inversely proportional to square of frequency

In a parallel plate waveguide, for a propagating mode, the value of β is _______

• Real

• Complex

• Imaginary

• Cannot be defined

For a parallel plate waveguide, which of the following is true?

• No real power flow occurs in the 'z' direction

• Power flow occurs in 'z' direction

• No power flow occurs in any direction

• Wave propagation in z direction is not possible in any mode

TE mode is characterized by _____________

• EZ=0

• HZ=0

• EX=0

• EY=0

Dominant mode is defined as

• Mode with the lowest cut off frequency

• Mode with the highest cut off frequency

• Any TEM mode is called a dominant mode

• None of the options mentioned

The lowest mode of TM wave propagation is:

• TM10 mode

• TM01 mode

• TM11 mode

• TM12 mode

The waveguides are used in a transmission line for _______

• Increasing transmission coefficient

• Increasing reflection coefficient

• Decreasing transmission coefficient

• Decreasing reflection coefficient