Extra exam question E9G09
Subelement E9, ANTENNAS AND TRANSMISSION LINES· Group E9G
What third family of circles is often added to a Smith chart during the process of designing impedance matching networks?
- A.Constant-SWR circles (correct answer)
- B.Transmission line length circles
- C.Coaxial-length circles
- D.Radiation-pattern circles
WhyConstant-SWR circles are the third family of circles often added to a Smith chart when designing impedance matching networks. Constant-SWR circles are the third family of circles often added to a Smith chart during impedance matching network design, each one tracing every impedance point that shares a given SWR value, useful for visualizing how a proposed match affects standing wave ratio, answer A. Transmission line length circles, coaxial-length circles, and radiation-pattern circles aren't real additional families used on a Smith chart this way.
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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- E9G05Which of the following is a common use for a Smith chart?