Feeding network, antenna device and communication device

By using a microstrip line structure for the feed network, the wiring and size of the feed network are simplified, solving the problems of high signal loss and large space occupation caused by complex transmission structures, and realizing a highly integrated and miniaturized antenna device.

CN116111343BActive Publication Date: 2026-06-09HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Filing Date
2021-11-11
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing antenna feed networks have complex transmission structures, resulting in high signal loss and large space requirements, making it difficult to meet the demands for high integration and miniaturization.

Method used

The feed network employing a microstrip line structure transmits equal-amplitude, reverse-biased radio frequency signals through the main body and two branches, simplifying the circuitry and reducing the size. It utilizes the surface space on both sides of the substrate to enhance impedance matching and improves electrical connection reliability through electrical connectors.

Benefits of technology

It reduces signal loss and space occupation in the feed network, improves manufacturing efficiency, and meets the requirements of high integration and miniaturization of array antennas.

✦ Generated by Eureka AI based on patent content.

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    Figure CN116111343B_ABST
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Abstract

The application provides a feeding network, an antenna device and a communication device. The main body part is provided with a first conductive part and a second conductive part. In addition, two branch parts are provided, one end of the first branch part is electrically connected with the first conductive part, and one end of the second branch part is electrically connected with the second conductive part. When two radiation parts with the same polarization direction in the radiation unit are respectively electrically connected with the first branch part and the second branch part, the transmission structure of the feeding network can feed two radio frequency signals, for example, two radio frequency signals with equal amplitude and opposite phase, to the two radiation parts of the radiation unit. Compared with the feeding network in the related art, the feeding network in the embodiment of the application has a simple circuit, thereby reducing the signal loss of the feeding network and the size of the feeding network, thereby reducing the occupied space of the feeding network in the antenna device and providing a suitable space for the setting of the array antenna.
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