Apparatus and method for antenna isolation
The UE apparatus addresses UL-to-UL self-interference in UE by using a circulator and selective switches to isolate aggressor and victim PAs, enhancing antenna isolation and reducing nonlinear effects, thus improving signal quality and efficiency.
WO2026109264A1PCT designated stage Publication Date: 2026-05-28NOKIA TECHNOLOGIES OY
Patent Information
- Application Number
- PCT/EP2025/081125
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-11-22
- Filing Date
- 2025-10-28
- Publication Date
- 2026-05-28
Smart Images
Figure EP2025081125_28052026_PF_FP_ABST
Abstract
Embodiments of the present disclosure relate to a user equipment apparatus, method, and computer program for antenna isolation. The UE apparatus comprises a first transmit chain (211) comprising a first power amplifier (PA) (201); a second transmit chain (212) comprising a second PA (202); a first antenna (208) and a second antenna (209) configured to transmit signals from the first transmit chain (211) and the second transmit chain (212); a circulator (203) with a first terminal selectively connected to one of the first antenna (208) or the second antenna (209) so that the circulator (203) provides isolation from an aggressor PA to a victim PA, wherein the aggressor PA is one of the first PA (201) or the second PA (202) with a higher output power and the victim PA is another one of the first PA (201) or the second PA (202) with a lower output power.
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Citation Information
Patent Citations
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