Communications: radio wave antennas – Antennas – With radio cabinet
Reexamination Certificate
2005-01-18
2005-01-18
Le, Hoanganh (Department: 2821)
Communications: radio wave antennas
Antennas
With radio cabinet
C343S853000
Reexamination Certificate
active
06844854
ABSTRACT:
An interferometric antenna array for use with a wireless communications device in reducing electromagnetic energy in a region proximate to the antenna array. The antenna array comprises two or more radiating elements coupled through circuitry to the wireless communications device. The circuitry operates to appropriately divide a signal from the communications device into a plurality of signals and to phase-shift the plurality of signals such that the electromagnetic wave pattern formed proximate to the antenna array by the two or more radiating elements, which are fed by the phase-shifted plurality od signals, includes a spatial null. The spatial null is located at a region where sensitive electronic equipment, or some portion of a user of the communications device is also located.
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International Search Report issued for corresponding PCT application PCT/US00/09974.
Johnson James R.
Myers Steven L.
Choate Hall & Stewart
Le Hoang-anh
Myers & Johnson, Inc.
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