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Optically controlled beam forming techniques are effective for phased-array antenna control. We have developed the Fourier transform optical beamformer (FT-OBF). In the FT-OBF, the antenna radiation pattern inputted into an amplitude only spatial light modulator is optically Fourier transformed to a specific phase-front light beam equivalent to an antenna excitation distribution. We developed the...
A method to broaden the E-plane radiation pattern of a dipole antenna over a ground plane is proposed. Two parasitic monopole elements with reactive loads are placed in the vicinity of the driving dipole element. Another advantage of this antenna is that these monopoles do not cause cross polarization in the H-plane. Based on the electromotive force (EMF) method, a new procedure that optimizes the...
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