| 摘要 |
<p>Array able to diffract the electromagnetic energy illuminating it, certain elements of the said array being capable of being modulated. The device according to the invention comprises photodetectors (5) permitting optical modulation of the diffracting or scattering emitter/reflector elements. Optical modulation permits individual control of each radiating element right up to very high frequencies. Moreover the device according to the invention permits the complexity of an array (1) to be reduced by eliminating the control wiring.
<??>The invention applies mainly to the construction of test devices for radar, for example simulation of bright points, hyperfrequency tomography of the human body, and the construction of beacons.
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