Raytheon Company

Daniel F Rypysc

Thomas V Sikina

Yueh-Chi Chang

Kaichiang Chang

Eli Brookner

Yuchoi Francis Lok

Peter R Drake

Landon L Rowland

Leon Green

Michael G Sarcione

Jacqueline M Bourgeois

Jeffrey R Holley

Francis Hartwich

A radar system uses a rotating antenna array having rows that display dispersive properties while feeding multiple radiating elements. In some embodiments, the radiating elements are dual polarized. In at least one embodiment, beam spoiling may be used to generate an unfocused transmit beam that covers an entire elevation range of interest. Digital beam forming may be used during a receive mode to achieve a stack of narrow-width receive beams in elevation. Frequency scanning may also be used to achieve stacked beams in azimuth.

Phased array antenna using stacked beams in elevation and azimuth

A radar system comprises a first transmit/receive module for a first frequency band and a first polarization, a second transmit/receive module for the first frequency band and a second polarization orthogonal to the first polarization, a third transmit/receive module for a second frequency band and the first polarization, a fourth transmit/receive module for the second frequency band and the second polarization orthogonal to the first polarization, a first plurality of splitter/combiners to receive outputs from the first and second transmit/receive modules, a second plurality of splitter/combiners to receive outputs from the third and fourth transmit/receive modules, a plurality of lens phase shifter pairs to receive outputs from the first plurality of splitter/combiners, a plurality of diplexers to receive signals from the plurality of lens phase shifter pairs and from the second plurality of splitter/combiners, and, a radiator assembly including a series of radiator elements coupled to the plurality of diplexers.

Radar system having dual band polarization versatile active electronically scanned lens array

Growing community of inventors

Holliston, MA, United States of America

Daniel F Rypysc