5G Antenna Module Calibration Structure With Air-Gap Signal Lines
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Solution Overview
Problem
The existing antenna structures in 5G communication systems face challenges in minimizing manufacturing errors and production costs while maintaining signal transmission efficiency, particularly due to the complexity of calibration substrates and transmission lines in achieving high isolation and low loss.
Innovation Solution
A closed-loop antenna module structure is introduced, featuring a calibration network with a conductive adhesive material and an air gap along signal lines, simplifying the calibration substrate and reducing production complexity, thereby minimizing errors and costs while enhancing signal transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex calibration substrate structure is used to achieve high isolation and low loss, then signal transmission efficiency is improved, but manufacturing precision and production cost are worsened
Solution Approach 1:
The patent changes the structural parameters of the calibration substrate by introducing air gaps and modifying the transmission line configuration. This simplifies the manufacturing process while maintaining the electrical performance required for high isolation and low loss signal transmission.
Solution Approach 2:
The patent extracts unnecessary complex structures from the calibration substrate and replaces them with simpler elements like air gaps. This reduction in structural complexity directly improves manufacturing precision while preserving the essential function of signal isolation and transmission.
2Reliability
If a complex calibration substrate structure is used to achieve high isolation and low loss, then signal transmission efficiency is improved, but production cost is worsened
Solution Approach 1:
The patent employs simpler, more cost-effective materials and structures in the calibration substrate, such as standard PCB materials with air gaps instead of expensive specialized materials. This reduces production cost while maintaining the required signal transmission performance through optimized structural design.
Solution Approach 2:
By changing the structural parameters to use simpler geometries and standard manufacturing-compatible features, the patent reduces production complexity and cost while achieving the same or better signal transmission efficiency through optimized electromagnetic performance.
3Ease of manufacture
If a simple conductive adhesive material structure is used, then production complexity is reduced, but electrical coupling reliability may be worsened
Solution Approach 1:
The conductive adhesive material serves as an intermediary element that provides both mechanical bonding and electrical coupling between the calibration substrate and metal plate. This dual-function approach simplifies the overall structure while maintaining reliable electrical connections through the adhesive's inherent conductive properties.
Data Source
AI summary
The disclosure relates to a fifth generation (5G) or pre-5G communication system supporting higher data rates after a fourth generation (4G) communication system such as Long Term Evolution (LTE). A module in a wireless communication system is provided. The module includes a plurality of antenna elements, an antenna substrate coupled to the plurality of antenna elements, a metal plate coupled to the antenna substrate, a calibration substrate coupled to a Radio Frequency (RF) component on a first face, and a conductive adhesive material for electrical coupling between the metal plate and the calibration substrate. The conductive adhesive material may be coupled to the calibration substrate on a second face different from the first face of the calibration substrate. The conductive adhesive material may include an air gap formed along a signal line included in the calibration substrate.