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Unformatted text preview: with I being a constant and α some real number (note that this is not the usual current distribution). Find the far-zone electric and magnetic fields radiated by this antenna (in spherical coordinates). You may use the results of problem 1. (4) Find the far-zone electric field of a linear wire antenna l =30 cm long at two frequencies: f = 1 GHz and f = 1.5GHz. Plot the antenna power pattern at both frequencies in rectangular (not polar) form. By inspecting these plots, determine the sidelobe levels in negative dB and the half-power bandwidth (HPBW) in degrees. Indicate both quantities in the plots (Note: assume the usual sinusoidal current distribution given in class for a finite length wire antenna)....
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- Fall '10
- Magnetic Field, #, 30 cm, aφ, Aθ