Antenna Tuning for Modular Portable Devices
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Solution Overview
Problem
In modular portable communication devices, the addition of secondary modules can negatively impact the antenna performance of the primary device, leading to decreased communication performance.
Innovation Solution
The primary device dynamically adjusts its antennas using tuners based on the identity of the connected secondary module, optimizing antenna performance by applying initial parameter settings from a table or array indexed by device type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna is optimized for stand-alone performance, then the antenna performance of the primary device is maximized, but the communication performance decreases when a secondary module is attached
Solution Approach 1:
The patent implements dynamic antenna tuning by detecting whether a secondary module is attached and adjusting antenna parameters accordingly. The system transitions from a static antenna configuration optimized for stand-alone operation to a dynamic configuration that adapts its electrical characteristics based on the presence of secondary modules, thereby maintaining optimal communication performance in both scenarios
Solution Approach 2:
The patent changes antenna parameters (such as impedance, resonant frequency, or electrical length) depending on the operational context. By modifying these parameters when a secondary module is detected, the system resolves the contradiction between stand-alone optimization and coupled operation performance, ensuring reliable communication in both configurations
2Weight of moving object
If device customization is implemented through modular secondary modules, then device footprint and weight are reduced, but antenna performance is degraded
Solution Approach 1:
The system dynamically adjusts antenna characteristics based on which secondary module is attached. This allows the device to maintain lightweight modular design while compensating for the antenna performance degradation that would otherwise result from the presence of various secondary modules through real-time parameter adaptation
3Ease of manufacture
If a single primary device design is used for all configurations, then manufacturing complexity is reduced, but antenna performance cannot be optimized for different secondary module combinations
Solution Approach 1:
The patent creates a universal primary device platform with an adjustable antenna system that can accommodate multiple types of secondary modules. Instead of producing different antenna designs for different device configurations, the system uses a single antenna structure capable of adapting its parameters to work optimally with various secondary module attachments, thereby simplifying manufacturing while maintaining performance
Data Source
AI summary
A system and method of tuning an antenna of a portable device in a modular device system using a device ID associated with second device to tune one or more antennas of a first device. In an embodiment, the first device resolves the device ID of the second device to a set of tuning parameters which improve tuning of the antenna of the first device in the presence of the second device. In a further embodiment, the first device may also tune an antenna of the second device to improve its performance in the presence of the first device.