| US 7,613,482 B2 | ||
| Method and system for steering antenna beam | ||
| I-Ru Liu, Taipei (Taiwan) | ||
| Assigned to Accton Technology Corporation, Hsinchu (Taiwan) | ||
| Filed on Dec. 08, 2005, as Appl. No. 11/296,441. | ||
| Prior Publication US 2007/0135167 A1, Jun. 14, 2007 | ||
| Int. Cl. H04M 1/00 (2006.01) | ||
| U.S. Cl. 455—562.1 [455/83; 343/729; 343/751; 343/853; 343/893; 342/403; 342/423; 342/434; 342/447] | 16 Claims |
| 1. A hybrid wireless network system for steering antenna beams, comprising:
an antenna array, receiving at least two RF signals;
an analog subsystem comprising:
a step leveling device coupling to the antenna array;
a magic-Tee coupler connected to the step leveling device for calculating a difference signal and a sum signal based on the
two RF signals; and
a phase-sensing comparator for calculating a polarity data based on the comparison of the difference signal and the sum signal;
and
a digital subsystem comprising a transceiver and a receiver, estimating a direction-of-arrival (DOA) based on the difference
signal and the polarity data, and generating weights based on the DOA; and
wherein the step-leveling device receive the weights from the digital subsystem, in form of a feedback control, to apply the
weights on the two RF signals respectively;
wherein the digital subsystem repetitively calculates new weights to update a beam pattern of the antenna array until the
DOA approaches null.
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