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السؤال 515

What type of analysis is commonly used for modeling antennas?

  1. Graphical analysis
  2. Method of Momentsالإجابة الصحيحة
  3. Mutual impedance analysis
  4. Calculus differentiation with respect to physical properties

الشرح

Antenna modeling programs such as NEC and its derivatives solve for the current on a wire structure by the Method of Moments, a numerical technique that turns the integral equation for the current into a solvable system of linear equations. Graphical construction and simple differentiation cannot handle the mutual coupling among all parts of a real structure.

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