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A directional antenna connected to a portable communications transceiver is adaptively directed towards a remote station in a communication system. The amount of RF power required by the portable device is significantly reduced, relative to a non-directional antenna. The operational period of the tr

A directional antenna connected to a portable communications transceiver is adaptively directed towards a remote station in a communication system. The amount of RF power required by the portable device is significantly reduced, relative to a non-directional antenna. The operational period of the transceiver between battery recharges is therefore considerably maximized.

대표청구항 ▼

A directionally adaptive antenna system for use with a portable communications transceiver for communicating with a base station in a communications network, said system comprising: (a) at least two antennae, connected to said transceiver, for receiving a first signal from said base station; (b) cir

A directionally adaptive antenna system for use with a portable communications transceiver for communicating with a base station in a communications network, said system comprising: (a) at least two antennae, connected to said transceiver, for receiving a first signal from said base station; (b) circuitry coupled to one of said antennae to enable said antennae to generate together a plurality of antenna patterns having mutually exclusive directionality; (c) a switch, operable with said transceiver, for selecting one of said plurality of antenna patterns which provides a maximum signal strength of said first signal received from said base station; and (d) a switch operator for operating the switch to select the one of said plurality of antenna patterns, wherein said switch operator operates the switch to periodically select each of said antenna patterns to determine which one of said antenna patterns provides said maximum signal strength of said first signal received from said base station.