Beceem Communications Inc.

Leolabs, Inc.

Beecem Communications Inc.

Gerald K Wong

Tushar Ramanlal Shah

Korhan Titizer

Matthew A Stevenson

Michael Nicolls

John J Buonocore

Christopher Rosner

Matthew Adelman

Steven Chen

Edward Lu

Craig Trumbull

Inkwan Park

Nathan Griffith

Daniel Ceperley

Sanado Barolli

Technologies for calibrating radars and tracking space objects. Some of such technologies enable a technique for calibrating a radar based on using -A- an elemental antenna (), which can be embedded on a housing hosting a set of antenna elements, or -B- an antenna () mounted to a reflector. Some of such technologies enable a radar site containing a first 1D phased array () and a second 1D phased array (), where the first 1D phased array sends a set of signals and receives a set of reflections based on the set of signals, and the second 1D phased array receives the set of reflections.

Calibrating radars and tracking space objects

A Doherty power amplifier is provided that includes a main amplifier device and an auxiliary amplifier device. The Doherty power amplifier further includes a phase compensation network. The phase compensation network is configured to maintain a substantially constant phase of one of an output signal from the main amplifier device or an output signal from the auxiliary amplifier device across a range of input powers. The Doherty power amplifier further includes an impedance inverter for power combining an output signal of the main amplifier device with an output signal of the auxiliary amplifier device.

Doherty power amplifier with phase compensation

A Doherty amplifier that includes a main amplifier device and an auxiliary amplifier device. The main amplifier device includes a plurality of independently controllable amplifier segments. The system further includes a coupler for coupling an input signal to each of the main amplifier device and the auxiliary amplifier device. The system further includes an impedance inverter for power combining an output signal of the main amplifier device with an output signal of the auxiliary amplifier device.

High efficiency doherty amplifier with a segmented main amplifier

Growing community of inventors

Cupertino, CA, United States of America

Gerald K Wong