A Tutorial on Optical Feeding of Millimeter-Wave Phased Array Antennas for Communication Applications

Figure 1

Sketch of a PAA for the calculation of its radiation pattern. : azimuthal angle; : elevation angle; : position of the point of interest in spherical coordinates; : position of the th antenna element; complex amplitude of the feeding currents, which can be expressed in terms of the real-valued amplitude, , and phase, .