Self-calibrating phased-array transceiver

US11264715B2 · kind B2 · utility

Assignee

• CALIFORNIA INSTITUTE OF TECHNOLOGY · US

Inventors

• Austin C. Fikes · Pasadena, US
• Behrooz Abiri · Pasadena, US
• Florian Bohn · Pasadena, US
• Seyed Ali Hajimiri · Pasadena, US
• Christopher I. Walker · Pasadena, US
• David Elliot Williams · Pasadena, US

Key dates

• Filing date: Jun 4, 2018
• Grant date: Mar 1, 2022
• Expiry date: Oct 1, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01Q3/267
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A phased-array includes, in part, N transceivers each including a receiver and a transmitter, and a controller. The phased array is configured to transmit a first radio signal from a first element of the array during a first time period, receive the first radio signal from a second element of the array, recover a first value associated with the radio signal received by the second element, transmit a second radio signal from the second element of the array during a second time period, receive the second radio signal from the first element of the array, recover a second value associated with the radio signal received by the first element, and determine a first phase of a reference signal received by the second element from the recovered first and second values. The first phase is relative to a second phase of the reference signal received by the first element.