Split ring resonator structure for decoupling
EP4747935A1Pending Publication Date: 2026-05-27TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
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Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
- Filing Date
- 2023-07-20
- Publication Date
- 2026-05-27
AI Technical Summary
Technical Problem
Existing ring resonator structures used in wireless communications disturb mid-band (MB) frequency performance, leading to interference and reduced effectiveness.
Method used
A split ring resonator structure is introduced, comprising a dielectric with rings and stub traces on one side and conductive rings and a transmission line on the other, designed to minimize MB frequency interference while maintaining low band (LB) performance.
Benefits of technology
The split ring resonator effectively decouples LB frequencies from MB frequencies, reducing radar cross-section at MB frequencies and improving return loss and inter-band isolation, thereby enhancing overall wireless communication performance.
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Smart Images
Figure IB2023057430_23012025_PF_FP_ABST
Abstract
Methods and systems are described for split ring resonators. The split ring resonator can work as a filter that blocks 0.6GHz to 1GHz and thus acts as a tuning element and reduces coupling between columns. Certain features, such as trace elements, can reduce the Radar cross section at mid band frequencies (1.4GHz-2.6GHz) thereby unaffecting the mid bands radiators. Embodiments can also boost return loss, which is very uncommon on several other tuning pieces in the prior art.
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