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Extra exam question E9E08

Subelement E9, ANTENNAS AND TRANSMISSION LINES· Group E9E

E9E08

What is a use for a Wilkinson divider?

  • A.To divide the operating frequency of a transmitter signal so it can be used on a lower frequency band
  • B.To feed high-impedance antennas from a low-impedance source
  • C.To divide power equally between two 50-ohm loads while maintaining 50-ohm input impedance (correct answer)
  • D.To divide the frequency of the input to a counter to increase its frequency range

WhyA Wilkinson divider divides power equally between two 50-ohm loads while maintaining 50-ohm input impedance. A Wilkinson divider splits power equally between two 50-ohm loads while still presenting a clean 50-ohm impedance at its input, a common way to feed two identical loads (like a pair of antennas) from a single 50-ohm source without disturbing that source's expected impedance, answer C. It doesn't divide operating frequency, isn't for feeding high-impedance antennas from a low-impedance source, and it isn't a frequency divider for a counter circuit, those aren't what a Wilkinson divider is built to do.

Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.

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