GENEVA, July 28 -- HUAWEI TECHNOLOGIES CO., LTD. (Huawei Administration BuildingBantian, Longgang DistrictShenzhen, Guangdong 518129) filed a patent application (PCT/CN2024/073111) for "STACKED BRANCH-LINE COUPLER" on Jan 18, 2024. With publication no. WO/2025/152126, the details related to the patent application was published on Jul 24, 2025.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).

Inventor(s): SITU, Guohui (Suite 400, 303 Terry Fox Drive, KanataOntario 231)

Abstract: A stacked branch-line coupler for passively generating I/Q signals. The stacked branch-line coupler is formed in a multi-layer subst...