Enhanced directional couplers for massive MIMO antenna systems

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12249749
APP PUB NO 20230238677A1
SERIAL NO

18157045

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Abstract

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A directional coupler includes a primary transmission line electrically coupled in series between an input port and an output port of the coupler, and an asymmetric, meander-shaped, secondary transmission line, which is electrically coupled in series between a coupling port and an isolation port of the coupler. The secondary transmission line includes a first coupling segment, which is reactively coupled to a first portion of the primary transmission line, and a second coupling segment, which is reactively coupled to a second portion of the primary transmission line, and is spaced closer to, or farther from, the primary transmission line relative to the first coupling segment, such that an asymmetry in reactive coupling is present between the first and second portions of the primary transmission line and the secondary transmission line. An intermediate segment is provided, which is electrically coupled in series between the first and second coupling segments. A coupling port segment is provided, which is electrically connected in series between the first coupling segment and the coupling port. And, an isolation port segment is provided, which is electrically connected in series between the second coupling segment and the isolation port.

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Patent Owner(s)

  • OUTDOOR WIRELESS NETWORKS LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Qiaozhi Shanghai, CN 1 0
Hou, XiaoHua Richardson, US 53 259
Jiang, Jin Shanghai, CN 49 303
Wang, Huan Richardson, US 313 628

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