Dual-Polarization Patch Antenna Layout for Port Isolation
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Solution Overview
Problem
Existing antenna structures face challenges in achieving high isolation characteristics, which are crucial for efficient operation in advanced mobile communication systems like 5G and 6G, particularly in terahertz bands, where interference between antenna ports can degrade performance.
Innovation Solution
A dual polarization patch antenna structure is designed with a multi-layer printed circuit board (PCB) and specific feed lines and vias configurations, along with shielding structures, to enhance isolation between antenna ports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a dual polarization patch antenna structure is used to support multiple frequency bands and polarization modes, then the versatility and functionality of the antenna system is improved, but the isolation between antenna ports deteriorates due to increased interference between antenna elements
Solution Approach 1:
A ground structure is introduced as an intermediary element between the first and second antenna patches. This ground structure acts as a mediator to block electromagnetic interference between the two patches, thereby improving isolation characteristics while maintaining dual polarization capability. The ground structure is specifically positioned and configured to prevent signal leakage between antenna ports without affecting the dual polarization functionality.
2Adaptability or versatility
If the antenna structure is designed with multiple feed lines and vias to support dual polarization, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
Multiple feed lines are merged and integrated into a single integrated feed structure that supports both horizontal and vertical polarization modes. The first and second feed lines are combined with the ground structure to form a unified feeding system, reducing the number of separate components and simplifying the overall device complexity while maintaining multi-frequency band support capability.
Data Source
AI summary
The disclosure relates to a fifth generation (5G) or a sixth generation (6G) communication system for supporting a higher data transfer rate. A dual polarization patch antenna structure and an electronic device including same are provided.