System and method for controlling the phase of an antenna array

Details System and method for controlling the phase of an antenna array System and method for controlling the phase of an antenna array

1996-03-12

1998-04-21

Issing, Gregory C.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a steerable array

342354, H01Q 322, H01Q 324

Patent

active

057422532

ABSTRACT:
A system and method for controlling power transferred to an aircraft. The system includes a master antenna and a plurality of slave antennas on the ground. Each slave antenna transmits an uplink signal of a unique phase modulated frequency. The master antenna transmits a master uplink signal. The aircraft receives all the uplink signals and modulates a composite of those signals to produce a downlink beacon that has multiple phase components, each of which corresponds to one of the slave antennas and has a unique frequency. Each of the slave antennas receives the downlink beacon and uses the corresponding phase component to adjust the phase of the slave uplink signal relative to the master uplink signal.

REFERENCES:
patent: 4233606 (1980-11-01), Chernoff
patent: 4955562 (1990-09-01), Martin et al.
patent: 5400037 (1995-03-01), East
East, Thomas W.R., A Self-Steering Array for the Sharp Microwave-Powered Aircraft, IEEE Transactions on Antennas and Propagation, 10(12):1565, 1992 .

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