Question

The rectangular air filled wave guide with width a = 5 cm, the cutoff wavelength for TE10 mode is​

Answer 1

Explanation:

. The modes of propagation supported by a rectangular wave guide is:

a) TM, TEM, TE modes

b) TM, TE

c) TM, TEM

d) TE, TEM

View Answer

Answer: b

Explanation: A hollow rectangular waveguide can propagate TE and TM modes. Since only a single conductor is present, it does not support TEM mode of propagation.

TEₒₒ mode for a rectangular waveguide:

a) Exists

b) Exists but defined only under special cases

c) Does not exist

d) Cannot be determined

View Answer

Answer: c

Explanation: The field expressions for TEₒₒ mode disappears or becomes zero theoretically. Hence, TEₒₒ mode does not exist.