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Prove time-average power density of half dipole antenna





rjraaz
Quote:
η |I_0 |^2/(8π^2 r^2 ) [cos⁡(〖π/2 cos〗⁡θ )/sin⁡θ ]^2≅ η |I_0 |^2/(8π^2 r^2 ) 〖Sin〗^3 θ



Is any body prove above equation, it is a equation of Time-average Power density of half dipole antenna.
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