Inter-Board Connector Layout for Coaxial and FPC Signal Routing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The next-generation mobile communication systems require antenna modules that can handle higher frequency bands, necessitating optimal wiring materials and connections between circuit boards and antenna modules of varying distances and thicknesses, while existing solutions face challenges in cost and flexibility.
Innovation Solution
A connector system that includes coaxial cables and electrical wires, with shielding plates, allowing for perpendicular insertion and connection to both coaxial cable and flexible printed board connectors, enabling optimal selection of wiring materials based on distance and thickness for efficient signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a coaxial cable is used to connect the circuit board and antenna module, then signal transmission quality is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines the coaxial cable connection and flexible printed board connection into a single integrated connector structure. The connector includes both a coaxial cable connection portion and an FPC connection portion, allowing both connection types to be merged into one component that can be mounted on the circuit board, thereby reducing overall device complexity while maintaining signal transmission quality
Solution Approach 2:
The connector is designed with multi-functionality to accommodate both coaxial cables and flexible printed boards. By incorporating multiple connection portions within a single connector body, the system can selectively use either connection type based on distance and thickness requirements, reducing the need for multiple separate connectors and simplifying the overall connection structure
2Device complexity
If a flexible printed board is used to connect the circuit board and antenna module, then device complexity is reduced, but signal transmission quality deteriorates
Solution Approach 1:
The connector is segmented into distinct connection portions: a coaxial cable connection portion for high-frequency signal transmission and an FPC connection portion for power and control signals. This segmentation allows each portion to be optimized for its specific function, ensuring that FPC connections are only used where appropriate while maintaining signal transmission quality for critical paths through the coaxial cable portion
3Adaptability or versatility
If the distance between circuit board and antenna module is long, then adaptability is improved, but wiring material selection becomes more complex
Solution Approach 1:
The connector provides universal adaptability by incorporating both coaxial cable and FPC connection capabilities in a single component. This multi-functionality allows the system to adapt to various connection distances and thicknesses without requiring multiple different connector types, simplifying wiring material selection while maintaining versatility
4Volume of moving object
If the mobile communication apparatus thickness is reduced, then device compactness is improved, but wiring material selection becomes more constrained
Solution Approach 1:
By merging both coaxial cable and FPC connection portions into a single integrated connector, the system maintains wiring material selection flexibility even in thin devices. The compact connector design allows either connection type to be used based on specific requirements without increasing overall device thickness, preserving adaptability while achieving compactness
Data Source
AI summary
Provided is a wiring structure with which a module board of one mobile communication apparatus can be connected to a circuit board of another mobile communication apparatus by using an optimal wiring material. The present invention is provided with: a main board 2; a first module board 8; a first connector that can be fitted to a coaxial cable connector and a connector mounted on a flexible printed board and that is mounted on the first module board; a second connector 10 fitted to the first connector; and wiring materials 6a, 6b, 14a-14e that are attached to the second connector and electrically connect the main board and the first module board.