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US 4,286,268 AGranted
Adaptive array with optimal sequential gradient control
AssigneeMotorola, Inc.
InventorsSam M. Daniel, Michael H. Myers
Life of this patent
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Abstract
An adaptive antenna array including a main antenna and at least one auxiliary antenna with a plurality of weight adjusting channels and circuitry for adjusting the gain of each channel periodically switched into each channel, and each channel further including memory means for continued gradient control during period that the circuit is connected to other channels.
Claims7
In an adaptive antenna array having a main antenna and at least one auxiliary antenna, apparatus for sequential gradient control comprising:
- (a) a plurality of weight channels for adjusting the weight of signals from the auxiliary antenna to reduce side lobe interference;
- (b) circuit means for adjusting the gain of each channel for gradient control of the weight;
- (c) switching means connected to said weight channels and said circuit means for periodically connecting said circuit means to each of said weight channels;
- and
- (d) each of said weight channels including memory means for continued gradient control during periods that said circuit means is connected to other weight channels.
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Dependencies are inferred from the claim text.