Question
Download Solution PDFThe wavelength of a signal propagating in a waveguide is always _______ its free space wavelength.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct option is 2
Concept:
The wavelength in a waveguide is considered as a wavelength in the direction of wave propagation and its dependence on wave frequency is defined as follows:
\({\lambda _x} = \frac{{{\lambda _0}}}{{\sqrt {1 - {{\left( {\frac{{{\lambda _0}}}{{{\lambda _c}}}} \right)}^2}} }}\)
Where λ0 is a wavelength in free space at a given frequency and λc stands for the cutoff wavelength for given waveguide dimensions and waveguide mode.
The wavelength of a wave in a waveguide is greater than in free space.
Last updated on Apr 11, 2023
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