Patent classifications
H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01Q
ANTENNAS, i.e. RADIO AERIALS
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3/00
Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
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H01Q3/26
varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
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H01Q3/2605
Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
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H01Q3/2611
Means for null steering; Adaptive interference nulling
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H01Q3/2629
Combination of a main antenna unit with an auxiliary antenna unit
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H01Q3/2635
the auxiliary unit being composed of a plurality of antennas
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H01Q3/2641
being secundary elements, e.g. reactively steered
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