Reconfigurable Patch Antenna Segmentation for Multi-Band Frequency Control
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Solution Overview
Problem
Existing RF communication systems face challenges in efficiently managing frequency adjustments in patch antennas, particularly in multi-band and multi-polarization scenarios, which affects the performance and flexibility of mobile devices in handling various radio frequency signals.
Innovation Solution
The implementation of a mobile device with a front-end system that includes multiple patch antennas with reconfigurable antenna segments and switches, allowing for independent frequency adjustments through a control circuit. This system enables separate control of frequency adjustments for horizontally and vertically polarized antennas, enhancing flexibility and performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple patch antennas with reconfigurable segments and switches are implemented for frequency adjustment, then frequency control precision and adaptability are improved, but device complexity increases
Solution Approach 1:
The patch antenna is divided into multiple reconfigurable segments that can be independently connected or disconnected via switches. This segmentation allows precise frequency control by selectively activating specific antenna segments, enabling the antenna to resonate at different frequencies without requiring multiple complete antenna structures.
Solution Approach 2:
The antenna system incorporates electronically controllable switches that dynamically reconfigure the antenna segments based on the desired operating frequency. This dynamic reconfiguration capability allows the antenna to adapt its electrical characteristics in real-time, providing precise frequency control while maintaining a single physical antenna structure.
2Adaptability or versatility
If separate frequency control is implemented for horizontally and vertically polarized antennas, then adaptability for multi-polarization scenarios is improved, but control system complexity increases
Solution Approach 1:
The control circuit is designed with universal functionality to manage both horizontally and vertically polarized patch antennas using the same control architecture. The circuit can independently adjust the frequency of each polarization by controlling the respective switches, providing multi-polarization adaptability without requiring separate dedicated control systems for each polarization.
Solution Approach 2:
The control circuit changes the electrical parameters (frequency, impedance) of the antenna system by selectively activating different segment combinations for each polarization. This parameter control approach allows independent frequency adjustment for horizontal and vertical polarizations, enhancing adaptability while maintaining a unified control system.
Data Source
AI summary
Reconfigurable patch antenna systems are provided herein. In certain embodiments, a mobile device includes a patch antenna configured to handle a radio frequency signal at a signal feed. The patch antenna includes a plurality of antenna segments. The front-end system further includes a plurality of switches each configured to control connection of a respective one of the first plurality of antenna segments to the first signal feed, and a control circuit configured to control the plurality of switches to provide a frequency adjustment to the patch antenna.