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Вопрос 545

What antenna matching system matches coaxial cable to an antenna by connecting the shield to the center of the antenna and the conductor a fraction of a wavelength to one side?

  1. Gamma matchПравильный ответ
  2. Delta match
  3. T-match
  4. Stub match

Объяснение

That description is the gamma match: the coaxial shield goes to the electrical center of a continuous driven element and the center conductor taps onto the element a fraction of a wavelength out along one side, usually through a series capacitor. The one-sided, asymmetric tap distinguishes it from the T-match, which does the same thing symmetrically on both sides.

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Вопрос 545: What antenna matching system matches coaxial cable to an… · FCC Amateur Extra Class (Element 4) · Questena