Question
Download Solution PDFThe cut-off frequency of TEM wave is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
- All electromagnetic waves consist of electric and magnetic fields propagating in the same direction of travel, but perpendicular to each other.
- Along the length of a normal transmission line, both electric and magnetic fields are perpendicular (transverse) to the direction of wave travel. This is known as the principal mode, or TEM (Transverse Electric and Magnetic) mode.
- This mode of wave propagation can exist only where there are two conductors, and it is the dominant mode of wave propagation where the cross-sectional dimensions of the transmission line are small compared to the wavelength of the signal.
- The cutoff frequency of TEM wave is zero.
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