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Antenna Theory Question
AndyS wrote:
Andy asks: Roy, is the field radiated by the parasitic element shifted in phase relative to the incident field. If not, what determines the phase shift ? Yes, it can be different in both phase and magnitude, determined by the length and diameter of the parasitic element. That's what you're doing when you adjust the lengths of the elements of a Yagi -- adjusting the phase and amplitude of the re-radiated fields from the elements. Roy Lewallen, W7EL |
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