Flexible Antenna Device with Hybrid Housing Structure
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Solution Overview
Problem
Conventional antenna devices, whether rigid or flexible, face issues with cracking under external forces when rotated out of metal housing and struggle with coupling with printed circuit board assemblies due to deformation of flexible printed circuits.
Innovation Solution
A flexible antenna device with a hybrid structure featuring a flexible housing and a rigid connecting structure, incorporating a flexible printed circuit and a feeding part, which is partially contained within a housing made of flexible material and assembled with a rigid base to maintain coupling with the printed circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the antenna device is made of rigid material, then it maintains structural stability, but it is vulnerable to cracking under external forces when rotated out of the housing
Solution Approach 1:
The patent applies this principle by making the housing of the antenna device from flexible material. The flexible housing can deform under external forces when the antenna is rotated out of the metal housing, preventing cracking while maintaining structural integrity. This directly resolves the contradiction between structural stability and resistance to external forces.
2Strength
If the antenna device is made of flexible material, then it resists cracking under external forces, but the flexible printed circuit inside deforms making coupling with the printed circuit board assembly difficult
Solution Approach 1:
The patent divides the antenna device into two segments: a flexible housing that resists cracking and a rigid connecting structure that maintains coupling precision. The rigid connecting structure is specifically designed to interface with the printed circuit board assembly, ensuring precise coupling even when the flexible housing deforms under external forces.
Solution Approach 2:
The patent uses composite construction by combining flexible material for the housing with rigid material for the connecting structure. This composite approach allows different parts of the same device to have different mechanical properties, simultaneously achieving resistance to cracking and precise coupling.
3Reliability
If the antenna device is rotated out of the metal housing for use, then it functions normally by avoiding shielding, but it becomes vulnerable to external forces causing cracks
Solution Approach 1:
The flexible housing enables the antenna device to be rotated out of the metal housing for normal operation while protecting against cracking from external forces during rotation and use. The flexibility allows the housing to accommodate movement and external pressure without structural failure.
Data Source
AI summary
A housing of an antenna device is made of a flexible material and contains the FPC-type antenna therein. The antenna device may be mounted to a PCB assembly of an electronic device, either detachably or fixedly. The housing and the antenna may both be all made of a flexible material, or the housing may further use a base made of a rigid material to mount to the PCB assembly, while the antenna may also be hybrid circuit board. As the antenna device is moved out of the shielding area of a metal housing of the electronic device for use, the flexibility of the antenna device keeps the antenna device from cracking due to external force and increases the durability of the antenna device.