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Question 271

Why are short connections used at microwave frequencies?

  1. To increase neutralizing resistance
  2. To reduce phase shift along the connectionBonne réponse
  3. To increase compensating capacitance
  4. To reduce noise figure

Explication

A signal takes measurable time to travel along a conductor, and at microwave frequencies a wavelength is only centimetres long. A connection of even a few centimetres becomes a significant fraction of a wavelength and introduces phase shift, so connections are kept short.

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Question 271: Why are short connections used at microwave frequencies? · FCC Amateur Extra Class (Element 4) · Questena