Liquid Antenna with Dual Conductivity for Radiation Control
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Solution Overview
Problem
Current electronic devices emit electromagnetic waves that pose health risks due to their design, with antennas being closer to the human body, leading to increased exposure.
Innovation Solution
An antenna using two liquid conductors with different specific gravities and conductivities, where the second liquid conductor with lower conductivity is positioned under the first due to gravity, reducing radiation exposure to the user while maintaining effective communication by orienting the radiation pattern upward.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the antenna is designed to be light and thin, then the electronic device becomes more portable and compact, but the antenna is positioned closer to the human body, increasing electromagnetic wave exposure and health risks
Solution Approach 1:
The patent applies local quality by creating different regions within the antenna structure with different conductivity characteristics. The liquid conductor is divided into multiple regions with varying conductivity values, allowing the antenna to have high radiation efficiency in upward directions while reducing electromagnetic exposure in downward directions toward the human body.
Solution Approach 2:
The patent utilizes parameter changes by varying the conductivity parameter of liquid conductor regions. Different regions of the liquid conductor have different conductivity values, which dynamically adjusts the radiation pattern based on the device orientation, thereby reducing harmful electromagnetic exposure while maintaining communication effectiveness.
2Power
If the antenna uses high conductivity material for strong radiation capability, then communication effectiveness is improved, but electromagnetic wave exposure to the user increases
Solution Approach 1:
The patent implements local quality by assigning different conductivity values to different regions of the liquid conductor. Regions oriented away from the human body have higher conductivity for strong radiation, while regions closer to the body have lower conductivity to reduce exposure, thus achieving both effective communication and user safety.
Solution Approach 2:
The patent converts the potentially harmful high conductivity that causes excessive radiation into a beneficial feature by spatially distributing different conductivity values. The high conductivity regions are positioned to radiate away from the user, transforming what could be harmful exposure into effective communication signal transmission.
3Ease of manufacture
If the antenna structure is fixed, then manufacturing is simpler, but the antenna cannot adapt to different orientations and maintain optimal radiation pattern
Solution Approach 1:
The patent applies dynamics by using liquid conductors that can flow and redistribute themselves based on gravitational force and device orientation. The liquid conductor adapts its shape and conductivity distribution automatically when the device is tilted or rotated, maintaining optimal radiation pattern without requiring complex mechanical adjustment mechanisms.
Solution Approach 2:
The patent utilizes hydraulics by employing liquid conductors within a sealed chamber. The liquid conductor's fluid properties allow it to respond to gravitational forces and orientation changes, automatically adjusting the radiation pattern according to device position while maintaining a simple sealed structure that is easy to manufacture.
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
The antenna dynamically adjusts its radiation pattern to face upward, effectively targeting signal relay stations while minimizing radiation exposure to the user by positioning the lower conductivity liquid conductor closer to the body.
Implementation Method 1
a specific gravity of the second liquid conductor is larger than a specific gravity of the first liquid conductor
Implementation Method 2
the second liquid conductor with a lower radiation capability is still located under the first liquid conductor with a stronger radiation capability following a gravity traction
Data Source
AI summary
An antenna adapted for an electronic device is provided. The antenna includes a chamber, a first liquid conductor, a second liquid conductor, and a feeding portion. The first liquid conductor is located in the chamber. The second liquid conductor is located in the chamber. A specific gravity of the second liquid conductor is larger than a specific gravity of the first liquid conductor, and a conductivity of the second liquid conductor is smaller than a conductivity of the first liquid conductor. The feeding portion extends into the chamber from an outside of the chamber. The feeding portion contacts with one of the first liquid conductor and the second liquid conductor.