Abstract
The performance of antennas in wireless communication devices, such as smartphones or wearable devices, can possibly be degraded due to the device's physical orientation. Some tuning methods may not address these orientation-based performance variations. A system is described that can dynamically adapt antenna tuning configurations using a software-driven, sweep-based algorithm. The algorithm may systematically evaluate a set of available tunecodes by measuring key performance indicators, such as received signal power for each, to select a configuration favorable for the current device orientation. This process can incorporate a multi-tiered sweep with coarse, optimized, and fine phases to balance a comprehensive search with efficient adaptation. The approach may modify an antenna's radiation pattern to potentially improve signal quality.
Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Chang, Mickey; Chen, Jim; and Hsiao, Chien-Ti, "Multi-Tiered Sweep Algorithm for Orientation-Based Antenna Tuning", Technical Disclosure Commons, (February 27, 2026)
https://www.tdcommons.org/dpubs_series/9410