Hinged Adjustable Antenna Reconfiguration Across Laptop and Tablet Modes
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Solution Overview
Problem
Existing information handling systems with multiple usage modes, such as convertible laptops, face challenges in efficiently reconfiguring their antenna systems to adapt to different wireless frequency bands as they transition between usage configurations, leading to suboptimal wireless communication performance.
Innovation Solution
A hinged adjustable antenna system that reconfigures between dipole, loop, and monopole antenna types by rotating around a hinge mechanism, allowing the antenna to adjust its configuration based on the device's usage mode, thereby optimizing wireless communication frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed antenna configuration is used in information handling systems, then the device structure remains simple, but wireless communication performance becomes suboptimal when transitioning between usage modes
Solution Approach 1:
The antenna system transitions from a fixed configuration to a dynamic reconfigurable system that can change its electrical characteristics. The patent implements this by using varactor diodes controlled by a microcontroller to adjust capacitance values, enabling the antenna to adapt its resonant frequency and radiation pattern based on the device's usage mode, thereby maintaining optimal wireless communication performance across different configurations.
Solution Approach 2:
The patent changes the electrical parameters of the antenna system by varying capacitance values through varactor diodes. The microcontroller adjusts the capacitance of multiple varactor diodes connected to different antenna elements, thereby changing the antenna's resonant frequency, impedance, and radiation characteristics to match different usage modes such as laptop or tablet configuration.
2Adaptability or versatility
If the antenna system is reconfigured to adapt to different usage modes, then wireless communication performance improves, but the antenna system complexity increases
Solution Approach 1:
The antenna system is segmented into multiple independent antenna elements, each capable of being individually controlled. The patent divides the antenna structure into several radiating elements with associated varactor diodes, allowing independent adjustment of each element's electrical characteristics. This segmentation enables versatile reconfiguration while keeping each individual control unit simple.
Solution Approach 2:
The antenna system is designed to perform multiple functions across different usage modes. The same physical antenna structure can be reconfigured to optimize performance for both laptop mode (with keyboard base) and tablet mode (without keyboard), providing universal adaptability. The microcontroller manages multiple antenna elements and varactor diodes to achieve different radiation patterns and frequency responses suitable for various operational configurations.
3Adaptability or versatility
If multiple antenna types are implemented for different frequency bands, then wireless communication coverage improves, but the device structure becomes more complex
Solution Approach 1:
Instead of implementing multiple fixed antenna types for different frequency bands, the patent uses a dynamic reconfiguration approach where a single antenna structure can be electronically adjusted to operate across multiple frequency bands. Varactor diodes controlled by the microcontroller enable continuous tuning of the antenna's resonant frequency, providing broad frequency band coverage without requiring separate physical antennas for each band.
Solution Approach 2:
The patent changes the electrical parameters of the antenna system by varying capacitance values through varactor diodes to achieve different resonant frequencies. By adjusting the capacitance of multiple varactor diodes connected to different antenna elements, the system can tune across various frequency bands (e.g., 2.4 GHz, 5 GHz, and other Wi-Fi bands) using a single unified antenna structure, thereby simplifying the overall device architecture.
Data Source
AI summary
A convertible information handling system comprising an antenna feed operatively coupled to a wireless adapter and an hinged adjustable antenna spanning a hinge for communicating on a wireless link, the hinge pivoting between a first antenna portion of the hinged adjustable antenna on a display chassis and a second antenna portion of an hinged adjustable antenna on a base chassis and the hinge which rotates the convertible information handling system between a first configuration and a tablet configuration and a first adjustable antenna configuration in the first configuration and a second adjustable antenna configuration in the tablet configuration, where the first adjustable antenna configuration supports a first bandwidth at the wireless adapter and the second adjustable antenna configuration supports a second bandwidth at the wireless adapter.