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1. (WO2018125403) WIDE-ANGLE, ALIASING-FREE BEAM STEERING USING APERIODIC EMITTER ARRAYS

Pub. No.:    WO/2018/125403    International Application No.:    PCT/US2017/061622
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Wed Nov 15 00:59:59 CET 2017
IPC: G01S 7/481
G02B 6/43
Applicants: INTEL CORPORATION
Inventors: SUN, Jie
RONG, Haisheng
DOYLEND, Jonathan K.
Title: WIDE-ANGLE, ALIASING-FREE BEAM STEERING USING APERIODIC EMITTER ARRAYS
Abstract:
A transmission circuit includes an array of subarrays of emitters with quasi-periodic spacing. A first subarray of emitters emits a source signal, and a second subarray of emitters emits the source signal. The first and second subarrays are separated by a subarray spacing that quasi-periodic, wherein the spacing between different subarrays is different. The quasi-periodic subarray spacing is to cause constructive interference of a main lobe of the emissions from the subarrays, and to cause non-constructive interference of sidelobes of the emissions. The spacing between emitters in the subarrays can vary from one subarray to another.