Communications: radio wave antennas – Antennas – With means for moving directive antenna for scanning,...
Reexamination Certificate
2005-08-23
2005-08-23
Dinh, Trinh Vo (Department: 2821)
Communications: radio wave antennas
Antennas
With means for moving directive antenna for scanning,...
C343S758000, C343S878000, C342S359000
Reexamination Certificate
active
06933901
ABSTRACT:
A system having a steerable antenna coupled to a temperature-dependent driver. The driver has a shape-memory element fabricated using a shape-memory alloy (SMA) and having the ability to change its shape as a function of temperature. The element is adapted to steer the antenna to improve signal reception and is controlled by a control circuit, which resistively heats the element while using the strength of the electrical signal generated by the antenna in response to a received radio-frequency signal as a feedback signal. The temperature of the element is adjusted to optimize the signal strength. Systems of the invention may enable customer-performed antenna alignment and are relatively simple and inexpensive to implement.
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Pawlenko Ivan
Samson Larry
Schwartz Richard F.
Dinh Trinh Vo
Lucent Technologies - Inc.
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