Antennas

Explanation of question 17

An appropriate length for the reflector of a 433MHz Yagi antenna will be approximately

  1. 173mm
  2. 300mm
  3. 346mm
  4. 700mm

The answer is :- = f(MHz) = = 0.33 m = 330mm The reflector is normally 5% larger, i.e. 330 x 1.05 = 346mm

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