Motorola Corporation

Wentian Zhang

Mark Ian Van Horn

Ronald L Porco

William C Greenwood

Bryan Todd Irons

An amplifier matrix () has a plurality of inter-coupled matrix clusters (), and a controller (). The controller is programmed to detect () a fault in an amplification path of one of the matrix clusters, and update () vector relationships in the matrix clusters to minimize inter-sector isolation at the outputs of the matrix clusters.

Fault-tolerant amplifier matrix

A feed forward amplifier performs a carrier cancellation tuning process separate from an IM reduction tuning process, wherein the carrier cancellation tuning process is performed without reference modulations that are utilized to modulate a feed forward amplifier input signal during the IM reduction tuning process. By decoupling the reference modulations during the carrier cancellation process, the feed forward amplifier is able to eliminate the instantaneous carrier cancellation degradation that would otherwise be caused by the reference modulations.

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Keller, TX, United States of America

Wentian Zhang