A differential gap antenna

By designing a differential gap antenna and optimizing the feeding structure and gap size, the problem of narrow bandwidth in the feeding structure of the dielectric resonator was solved, achieving a significant expansion of bandwidth and improved adaptability.

CN116404404BActive Publication Date: 2026-08-25SHENZHEN SUNWAY COMM
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Patent Information

Application Number
CN202310475199.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-04-25
Publication Date
2026-08-25
Estimated Expiration
2043-04-25

AI Technical Summary

Technical Problem

The existing feed structure of dielectric resonators has a narrow bandwidth, making it unsuitable for effective application in various scenarios.

Method used

Design a differential gap antenna, including a dielectric substrate, a metal plate, and a dielectric resonator. The metal plate has a feed structure and a ground hole. The feed structure consists of identical first and second feed gaps and a differential structure. The dielectric resonator is overlaid on the feed structure. The specific size and position of the gaps and ground hole are optimized to improve the bandwidth.

Benefits of technology

The bandwidth has been increased, improving the adaptability of the differential gap antenna in different scenarios. The bandwidth has been expanded from 22.5-26GHz to 20.5-27GHz, an improvement of 85%.

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Abstract

The application provides a differential gap antenna, which comprises a dielectric substrate, a metal plate attached to the dielectric substrate, and a dielectric resonator installed on the metal plate, wherein the metal plate is provided with a feed structure and a plurality of ground holes, the feed structure comprises a first feed slot, a second feed slot and a differential structure, the differential structure is arranged at the connection of the first feed slot and the second feed slot, the plurality of ground holes are respectively arranged around the differential structure, the first feed slot and the second feed slot are of the same structure, and the dielectric resonator is pressed on the feed structure, compared with a conventional feed structure, the bandwidth is improved and the adaptability in different scenes is improved.
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