CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Digital Waves

The modes in ...

Question

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

Open in App

Solution

Ans : (a)

In case of rectangular wave guide $T E_{m n}$ exists for all values of m and n except m = 0 and n = 0. For $T M_{m n}$ to exist both values of m and n must be non zero

Suggest Corrections

thumbs-up

0

Similar questions

Q. Consider the following statements regarding a rectangular wavelength:
1. The cutoff frequencies of

T E_{m n}

T M_{m n}

modes are diffrent, for given values of m and n (for m, n > 0).
2. Phase velocity inside the waveguide must be less than or equal to the speed of light.
Which of the above statements is/are wrong?

Q. If the frequency of operation of a rectangular waveguide above cutoff frequency is increased, then the wave impedance for TE and TM modes are respectively.

Q. The dominant mode in a rectangular waveguide is

T E_{10}

, because this mode has

Q. Consider an air-filled rectangular waveguide with a = 6 cm and b = 9 cm. The y component of the

T E_{m n}

E_{y} = 12 s i n (\frac{2 π x}{a}) c o s (\frac{2 π y}{b}) s i n (10 π \times 10^{10} t - β z)

V/m. The intrinsic impedance is ________

Ω

Q. An air-filled rectangular waveguide of interval dimensions a cm

\times

b cm (a > b) has a cutoff frequency of 6 GHz for the dominant

T E_{10}

mode. For the same waveguide, if the cutoff frequency of the

T M_{11}

mode is 15 GHz, the cutoff frequency of the

T E_{01}

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Modulation

PHYSICS

Watch in App

explore_more_icon

Explore more

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon