Figure #1: The 33.33 mm dipole is aligned along the y axis at the origin. A 10 cm X 10 cm target is positioned at range 25 cm along the x axis. The Poynting vector at the target is 72 W/m^2. The total power radiated by the dipole is 36 W.
Figure #2: The radiation pattern of the dipole is shown in xy, yz, zx planes. The radiation is thrown broadside to the y axis, and is symmetric about the y axis.
Figure #3: The length of the element is 33 mm. The element presents 73Ω to the microwave transmission line. The dipole radiates 36 W at 4.5 GHz. The maximum current along the element is 1A.
Figure #4: A square 10 cm X 10 cm target is placed 25 cm from the dipole to measure radiated field. The power intercepted by the target at range 25 cm is .72W. The Poynting vector at the target is 72W/m^2.The target is of area 2.25 in λ^2. This represents a solid angle of .1539.The directivity of the dipole at the target is 1.547, meaning at the target the dipole radiates 1.547times the power that would be radiated by an isotropic source. The mean electric field at the target is 235 V/m. The mean magnetic field at the target is 0.6246 A/m.
Figure #5: The radiation at the target is linearly polarized, with the electric field in the y direction and the magnetic field in the z direction.
Figure #8: The distribution of current along the element at 5.9 GHz. The maximum current, not at the center, is 1 A. The current at the center is .88 A .
Figure #6: The distribution of current along the element at 4.5GHz, at resonance. The maximum current, at the center, is 1 A.
Figure #7: The distribution of current along the element at 3.1GHz. The maximum current, at the center, is .88 A. This current distribution is that of a short dipole, because of the longer wavelength.
Figure #9: The Poynting vector at the target as function of frequency from 3.1GHz to 5.9 GHz. This vector ranges from 20.4 W/m^2 to 156.8 W/m^2. This is a quadratic dependence, consistent with theory. Also shown is the inverse dependence of wavelength on frequency.