Printed high-isolation multi-feed antenna

By arranging monopole antennas and slot antennas side by side on a common ground plane, and utilizing antenna extensions and slots of different lengths, the problem of insufficient isolation in existing printed multi-feed antennas is solved, enabling high isolation and low-cost mass production, suitable for Wi-Fi and Bluetooth devices.

CN122073329APending Publication Date: 2026-05-22INTEL CORP
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Patent Information

Application Number
CN202511394453.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-11-22
Filing Date
2025-09-28
Publication Date
2026-05-22

AI Technical Summary

Technical Problem

Existing printable multi-feed antennas suffer from insufficient isolation, leading to the need for filters, which increases cost and complexity and makes them difficult to manufacture.

Method used

Design a multi-feed antenna device including a monopole antenna and a slot antenna. By arranging the monopole antenna and the slot antenna side by side on a common ground plane, high isolation is achieved by utilizing antenna extensions and slots of different lengths, and the device is manufactured on a low-cost substrate using a printing process.

Benefits of technology

It achieves high isolation multi-feed antennas, mass production capability, reduced costs, and improved antenna integration and performance, especially improving throughput and latency in Wi-Fi and Bluetooth applications.

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Abstract

The invention provides a printed high-isolation multi-feed antenna. A multi-feed antenna apparatus includes a monopole antenna having an antenna portion, a first antenna extension having a first length extending from the antenna portion, a second antenna extension having a second length extending from the antenna portion, the second length being less than the first length; the slot antenna comprises a first slot with a third length and a second slot with a fourth length, and the fourth length is larger than the third length; a first antenna feeder coupled to the monopole antenna; a second antenna feeder coupled to the slot antenna; and a ground plane common to the monopole antenna and the slot antenna.
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