Space Systems/loral, LLC

Zheng Tu

Vijaya Korwar Gallagher

Ghislain Turgeon

Subrahmanyam V Vaddiparty

Richard Hoffmeister

Anton Weaver-Madsen

An amplifier system includes an input network having a plurality of input ports; an output network having a plurality of output ports; a plurality of amplification units coupled between the input network and the output network, the plurality of amplification units configured to amplify signals from the plurality of input ports; and a calibration unit coupled between the plurality of amplification units and the output network to calibrate amplified signals from the plurality of amplification units.

Method and apparatus for calibration and equalization of multiport amplifiers (MPAs)

A payload subsystem of a satellite includes a plurality of transmit antenna feeds, a plurality of frequency filters, and a power amplification arrangement including a plurality of power amplifiers. The power amplification arrangement has at least one multiport amplifier, the multiport amplifier including a plurality of output ports, each output port coupled with a respective one of the plurality of transmit antenna feeds by way of a respective one of the plurality of frequency filters.

Growing community of inventors

Palo Alto, CA, United States of America

Zheng Tu