The embodiments shown in
The weight of the controllable phase control element is also typically very low. If the polarizers are embodied by thin-film technology on thin RF substrates, and if the holder is made from closed-cell foam, then the weight of the phase control element amounts to typically only a few grams. For the drive unit as well, only very small, lightweight actuators, such as micro electric motors, are therefore necessary. The weight of such micro electric motors is again in the gram range. The weight of an individual phase controller, particularly in the frequency range above 10 GHz, is then typically only a few grams.
Another advantage is that dissipation of the phase controllers of the invention is very slight. The heat input of the phase control elements is negligible because of the very low ohmic losses. If electric motors are used as drive units, then their efficiency is typically >95%, so that the drive units, too, engender practically no heat input. Furthermore, the power consumption, of micromotors, for instance, is merely in the mW range.