Invention Grant
- Patent Title: Digital dithering for reduction of quantization errors and side-lobe levels in phased array antennas
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Application No.: US15396070Application Date: 2016-12-30
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Publication No.: US10374663B2Publication Date: 2019-08-06
- Inventor: Thomas Jackson , Hamad Alsawaha , Bingqian Lu , Peter Hou , Yilin Mao
- Applicant: Hughes Network Systems, LLC
- Applicant Address: US MD Germantown
- Assignee: HUGHES NETWORK SYSTEMS, LLC
- Current Assignee: HUGHES NETWORK SYSTEMS, LLC
- Current Assignee Address: US MD Germantown
- Agency: Sheppard, Mullin, Richter & Hampton LLP
- Main IPC: H04B7/01
- IPC: H04B7/01 ; H04B7/185 ; H01Q21/22 ; H01Q3/26 ; H01Q3/38

Abstract:
Systems and methods disclosed herein provide techniques for reducing quantization errors and side lobe levels in phased array antennas. The states of a quantized phase shifter of a phased array antenna may be dithered to achieve a time-averaged value that reduces quantization errors. By rapidly switching between the different states of the quantized phase shifter, a time-average value close to a desired phase state may be achieved with a low resolution phase shifter.
Public/Granted literature
- US20180191406A1 DIGITAL DITHERING FOR REDUCTION OF QUANTIZATION ERRORS AND SIDE-LOBE LEVELS IN PHASED ARRAY ANTENNAS Public/Granted day:2018-07-05
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