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15-04-2024
Engineering

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A short dipole antenna with negligible thickness has a triangular current distribution given by 〖I_e (x^',y^',z^' )=I〗_o (1-2|z|/l) where l is the length of the antenna. Show that the radiation resistance of the antenna operating in free space is, R_r=20π^2 [l/λ]^2

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