Variable Grounding Unit for Folder Terminal Antenna Radiation
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Solution Overview
Problem
Conventional folder type portable terminals experience degradation of antenna radiation characteristics when the folder is closed, as the ground configuration is primarily designed for optimal performance in the open state, leading to suboptimal communication quality.
Innovation Solution
A variable-type grounding unit is implemented, where the hinge module is selectively connected or disconnected from the main board's grounding portion based on the folder's opening and closing state, ensuring optimal antenna radiation characteristics regardless of the folder's position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the folder is constantly grounded to the hinge module to improve antenna radiation in the open state, then antenna radiation performance is improved in the open state, but antenna radiation characteristic degrades in the closed state
Solution Approach 1:
The grounding unit is designed to dynamically change its grounding state based on the folder's position. A connecting means selectively connects the grounding portion of the main board to the hinge module when the folder is open, and disconnects when the folder is closed, allowing the system to adapt to different operational states and maintain optimal antenna radiation characteristics in both configurations
Solution Approach 2:
The electrical connection state of the grounding unit is changed based on the folder's opening/closing state. By altering the grounding parameter (connected/disconnected) according to the folder position, the system optimizes antenna radiation performance for both open and closed states without compromising either configuration
Data Source
AI summary
The present invention relates to a folder or hinge type portable terminal having a grounding unit. A main body has a main board. A folder opens and closes at an angle from the main body. At least one component of a hinge module is formed of a metallic material, and opens and closes the folder at an angle from the main body. A connecting means selectively contacts a grounding portion of the main board to the material components of the hinge module in response to the opening and closing operation of the folder, to provide optimal antenna radiation characteristic irrespective of the opening and closing operation of the folder.