ISRO Electronics & Communication (ECE) 2015 - Question 38

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Topic: Waveguides

TM_01 mode in rectangular perfect metallic waveguide is:

  • A. Propagating mode
  • B. Evanescent mode
  • C. Non-existent mode
  • D. None of the above

Answer: C. Non-existent mode

Explanation: TM_mn modes for either m = 0 or n = 0 is a non-existing mode for rectangular waveguide.

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