Multi-Band Antenna Housing Circuit for Stable Resonance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electronic devices with multi-band antennas face challenges in maintaining stable resonance across various frequency bands due to insufficient current supply, leading to degraded performance.
Innovation Solution
The electronic device incorporates a housing with conductive members and capacitors on a circuit board, connected via conductive paths and pads, allowing for stable current supply and resonance in multiple frequency bands, enhancing radiation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antennas are used to support multiple frequency bands, then the antenna coverage and versatility are improved, but the current supply becomes insufficient and resonance stability deteriorates
Solution Approach 1:
The patent combines multiple antenna elements (first conductive member and second conductive member) into a single integrated antenna structure that can operate across multiple frequency bands. The conductive paths and capacitors are merged into a unified circuit board design, allowing shared current supply while maintaining distinct resonance characteristics for different frequency bands.
Solution Approach 2:
The antenna structure is designed with multi-functionality to support both first and second frequency bands using the same physical antenna elements. The conductive members can resonate in different frequency bands by adjusting the capacitance values, making the antenna system universal across multiple communication standards (e.g., Wi-Fi 2.4 GHz and 5 GHz).
2Device complexity
If current is supplied through a capacitor to multiple antennas, then the circuit simplicity is maintained, but the current sufficiency decreases and radiation efficiency deteriorates
Solution Approach 1:
The patent applies different capacitance values to different antenna elements or different frequency band configurations. The first capacitor and second capacitor have different capacitance values optimized for specific frequency bands, allowing each part of the antenna system to have the optimal electrical characteristics for its intended operating frequency, thereby improving radiation efficiency while maintaining circuit simplicity.
3Device complexity
If the same conductive path is used for multiple frequency bands, then the device complexity is reduced, but the current distribution becomes insufficient and resonance stability deteriorates
Solution Approach 1:
The patent segments the current supply path by providing separate conductive paths (first conductive path and second conductive path) for different frequency bands on the circuit board. This segmentation allows independent current control and optimization for each frequency band, ensuring sufficient and stable current distribution while maintaining a relatively simple overall device structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration ensures stable resonance and improved radiation efficiency across both lower and higher frequency bands, such as Wi-Fi 2.4 GHz and 5 GHz, thereby enhancing antenna performance.
Implementation Method 1
The conductive member may be configured to resonate in a first frequency band or a second frequency band higher than the first frequency band
Implementation Method 2
a first capacitor disposed on the first conductive path
Data Source
AI summary
An antenna and an electronic device including an antenna are provided. The electronic device includes a housing including a conductive member; a wireless communication circuit; a circuit board; a first conductive path arranged on at least one part of the circuit board and electrically connected to the wireless communication circuit; a capacitor arranged on the first conductive path; a second conductive path electrically connected to the first conductive path between the wireless communication circuit and the capacitor and arranged on at least one part of the circuit board; a first conductive pad electrically connected to the first conductive path; a second conductive pad electrically connected to the second conductive path and coupled with the first conductive pad; and a conductive connection member for electrically connecting the first conductive pad and the conductive member. The conductive member can be configured to resonate at a first frequency band or at a second frequency band that is higher than the first frequency band.