Antenna Module PCB Feeding Unit Spacing Optimization
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Solution Overview
Problem
The performance of antenna modules with printed circuit boards deteriorates as the number of stacked layers increases, leading to higher failure rates and increased production costs and time, particularly in 5G communication systems where high-frequency bands and complex network configurations are used.
Innovation Solution
The antenna module design includes a printed circuit board with a feeding unit and a first antenna spaced apart by a predetermined length, allowing for improved performance and reduced layer stacking, which simplifies the production process and enhances design freedom by decoupling the feeding unit and antenna, thereby optimizing gain values and reducing side lobe radiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the stacking number of layers in the printed circuit board is increased, then the antenna module performance may be improved, but the production complexity and failure rate increase
Solution Approach 1:
The patent divides the antenna module into separate functional components: a printed circuit board with a feeding unit and a separate antenna unit. This segmentation allows each component to be optimized independently, reducing the need for complex multi-layer stacking while maintaining performance. The feeding unit on the PCB connects to the separate antenna through a connection structure, simplifying the overall production process.
Solution Approach 2:
The antenna is extracted from the traditional integrated PCB design and positioned as a separate component. This extraction reduces the number of layers required in the printed circuit board, thereby decreasing production complexity and failure rates while preserving the antenna's radiation performance through optimized spacing and connection structures.
2Reliability
If the stacking number of layers in the printed circuit board is increased, then the antenna module performance may be improved, but the production time and costs increase
Solution Approach 1:
By segmenting the antenna module into a PCB with feeding unit and a separate antenna unit, the patent enables parallel production of components. This reduces the cumulative production time compared to creating complex multi-layer PCBs, as each component can be manufactured and tested independently before final assembly.
Solution Approach 2:
The feeding unit is pre-configured on the printed circuit board with optimized trace routing and connection points. This preliminary configuration reduces the need for additional layers and complex routing in subsequent production stages, thereby shortening overall production time while maintaining signal integrity and antenna performance.
3Volume of moving object
If the feeding unit and antenna are positioned close together, then the device size is reduced, but the radiation performance deteriorates with increased side lobe radiation
Solution Approach 1:
The patent optimizes the local spatial relationship between the feeding unit and antenna by establishing a specific predetermined distance. This localized optimization ensures that the feeding unit is positioned at an optimal distance from the antenna to minimize coupling effects and reduce side lobe radiation, while still maintaining a compact overall device size through efficient space utilization.
Solution Approach 2:
The patent specifies a predetermined distance parameter between the feeding unit and the antenna that is optimized to balance device compactness with radiation performance. By carefully controlling this dimensional parameter, the design achieves reduced side lobe radiation while maintaining a space-efficient configuration suitable for modern compact devices.
Data Source
AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. An antenna module and a base station including the antenna module. The antenna module includes a printed circuit board in which at least one layer is stacked, a feeding unit disposed at one surface of the printed circuit board, and a first antenna spaced apart from the feeding unit by a predetermined first length.