Antenna Impedance Matching with Dual Circuits
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Solution Overview
Problem
Existing communication technologies face challenges in efficiently managing impedance changes in antennas, leading to suboptimal power consumption and communication performance across various frequency bands.
Innovation Solution
An electronic device with a communication module, processor, antenna, sensor, and dual matching circuits that adaptively control impedance matching based on real-time antenna impedance measurements, using control signals to optimize impedance matching across different frequency bands and usage states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single impedance matching circuit is used, then the device complexity is reduced, but the adaptability to different impedance conditions deteriorates
Solution Approach 1:
The patent implements dynamic impedance matching by switching between first and second matching circuits based on real-time antenna impedance measurements. The processor dynamically selects which matching circuit to use by comparing measured impedance values against predetermined thresholds, enabling the system to adapt to varying impedance conditions without permanently increasing hardware complexity.
Solution Approach 2:
The impedance matching function is segmented into multiple specialized circuits (first matching circuit and second matching circuit), each optimized for specific impedance ranges. This segmentation allows each circuit to be simpler in design while collectively providing broader adaptability through selective activation based on sensor feedback.
2Device complexity
If impedance matching is not optimized, then the device complexity is reduced, but the power consumption increases
Solution Approach 1:
The system employs feedback control where the sensor continuously monitors antenna impedance and provides real-time information to the processor. Based on this feedback, the processor determines the optimal matching circuit configuration and adjusts the system accordingly, ensuring minimal power consumption by maintaining optimal impedance matching without requiring complex continuous adjustment mechanisms.
Solution Approach 2:
The impedance matching system performs self-optimization by automatically selecting the appropriate matching circuit based on sensor measurements. The processor compares measured impedance values with predetermined reference values and autonomously determines the optimal configuration, eliminating the need for external intervention or complex control algorithms while minimizing power consumption.
3Reliability
If real-time impedance measurement is implemented, then the communication performance is improved, but the device complexity increases
Solution Approach 1:
A sensor acts as an intermediary between the antenna and the processor, providing simplified impedance measurement data. The sensor converts complex antenna impedance characteristics into measurable signals that the processor can easily interpret by comparing against predetermined reference values, thereby improving communication performance without requiring the processor to directly handle complex impedance analysis.
Data Source
AI summary
An electronic device is provided. The electronic device includes a communication module and a processor electrically connected to the communication module, wherein the communication module includes an antenna configured to transmit and receive a communication signal, a sensor configured to measure an impedance of the antenna, and a first matching circuit and a second matching circuit electrically connected to the antenna, and the processor is configured to receive information on the impedance of the antenna from the sensor, check control information on at least one of the first matching circuit and second matching circuit corresponding to the impedance of the antenna at least partially based on the received information on the impedance of the antenna, and transmit control information generated at least partially based on the checked control information to at least one of the first matching circuit and the second matching circuit corresponding to the control information.