Perpendicular Rotman phased array front end device

US11699861B2 · kind B2 · utility

Assignee

• General Radar Corporation · US

Inventors

• Jon Williams · Oviedo, US
• Dmitry Turbiner · Palo Alto, US
• Brian Williams · York, US
• Christian Kurzke · Saratoga, US
• David Powell · Saukville, US
• Ilia Lebedev · Cambridge, US
• Sergey Klypin · Sammamish, US
• Barnabas Fung · San Mateo, US
• Devin Matthews · San Francisco, US

Key dates

• Filing date: Sep 20, 2020
• Grant date: Jul 11, 2023
• Expiry date: Feb 6, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S2013/0254
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A radar system includes a transmit front end device including a transmit planar component, and a receive front end device including a receive planar component. Each of the transmit planar component and the receive planar component includes a first end, a second end, a cavity space and a linear array of antennas. The cavity space is bounded by beam ports along a first side of the cavity space and by array ports along a second side of the cavity space. The cavity space is in operative communication with the beam ports and with the array ports to form a Rotman lens. A linear array of antennas is located along the second end of the planar component. The transmit planar component and receive planar component are arranged such that the linear array of antennas of the transmit planar component and the linear array of antennas are perpendicular to one another.