Patent · US Active

Chip with beamforming network based on photonic crystal resonant cavity tree structure and fabrication method thereof

US10816696B2 · kind B2 · utility

3Cited by

1References

7Claims

0Family size

Assignee

38TH RESEARCH INSTITUTE, CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION · CN

Inventors

Xueming Jin · Meekrap-oord, CN
Naidi Cui · Meekrap-oord, CN
Jin Guo · San Jose, US
Junbo Feng · Chongqing, CN
Yuankui Hu · Meekrap-oord, CN
Heng Zhao · Brookfield, US
Li Jin · Houston, US
Erdong Chen · Redwood City, US

Key dates

Filing date	Oct 24, 2019
Grant date	Oct 27, 2020
Priority date	—
Expiry date	Oct 24, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG02B2006/12166
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The application relates to radars, and provides a chip with a beamforming network based on a photonic crystal resonant cavity tree structure and a fabrication method thereof. The chip includes a beamforming network layer, including an incidence coupling grating, first to Nth photonic crystal resonant cavity combinations, first to (N+1)th optical waveguides and an emergence coupling grating which are successively connected; branches of each photonic crystal resonant cavity combination is an integral multiple of that of the previous photonic crystal resonant cavity combination, and two photonic crystal resonant cavity combinations are connected by an optical waveguide.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.