Raytheon Company

Lawrence Wayne Tiffin

Joel Blumke

Ray Soloman Skaggs

Christian Maldonado-Echevarria

A noise reduction filter is inserted between the source and non-linear transmission line (NLTL) in a frequency multiplier to improve phase noise performance. The noise reduction filter is suitably coupled directly to the input of the NLTL. The noise reduction filter and the output BPF are suitably low complexity filters.

Noise reduction for non-linear transmission line (NLTL) frequency multiplier

A circuit module may include a first substrate having a first side and a second side, a second substrate having a third side and a fourth side, the third side facing the second side, and a resilient bond layer coupling the second side to the third side. The first substrate may have a first coefficient of thermal expansion and the second substrate may have a second coefficient of thermal expansion substantially different from the first coefficient of thermal expansion. A broadside coupler may couple a microwave signal from the first substrate to the second substrate. The broadside coupler may include a first conductive element formed on the second side and a second conductive element formed on the third side proximate the first conductive element.

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Vail, AZ, United States of America

Lawrence Wayne Tiffin