Loop Antenna Placement on Device Side Surface
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Solution Overview
Problem
The challenge is to enhance the radiation performance of electronic devices with loop antennas in compact spaces, particularly in devices with various conductive components that can degrade antenna performance for transmission and reception.
Innovation Solution
The implementation of a configuration that includes multiple solenoid-type and flat-type loop antennas, strategically positioned and connected to optimize magnetic field generation and minimize interference, allowing for efficient magnetic field signal emission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the size of electronic device is decreased, then the compactness is improved, but the space for mounting antenna becomes insufficient
Solution Approach 1:
The patent utilizes the side surface of the housing as a mounting location for the antenna, transitioning from traditional planar mounting areas to a three-dimensional surface. This allows the antenna to be positioned on the lateral surface of the housing, effectively utilizing available space in the compact device without compromising antenna performance or requiring increased device volume.
2Adaptability or versatility
If various conductive components are included in electronic device, then the functionality is improved, but the antenna performance is degraded
Solution Approach 1:
The patent extracts the antenna from the interior space of the device and positions it on the external side surface of the housing. This separation removes the antenna from the electromagnetic interference environment created by internal conductive components, thereby protecting antenna performance while allowing the device to include various functional conductive components without compromise.
3Adaptability or versatility
If multiple types of antennas are mounted in limited space, then the communication versatility is improved, but the device complexity is increased
Solution Approach 1:
The patent employs a single antenna structure that can perform multiple communication functions, including magnetic field communication and other wireless communication tasks. This multi-functional antenna design eliminates the need for multiple separate antennas, thereby maintaining communication versatility while reducing overall device complexity and simplifying the antenna configuration.
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 significantly improves the radiation performance of electronic devices, enabling effective magnetic field communication and payment functions in compact, multi-component devices by optimizing antenna placement and design.
Implementation Method 1
The electronic device may use this module to carry out magnetic field communication with another device
Implementation Method 2
an antenna coil having a wire wound multiple times in a loop shape
Data Source
Figure 1a
Figure 1b
Figure 2a
AI summary
An electronic device is provided that includes a housing having a first surface facing a first direction, and a second surface facing a second direction opposite to the first direction. The electronic device also includes a conductive pattern having a first conductive coil with an axis that is substantially perpendicular to the first direction or the second direction. The electronic device additionally includes a communication circuit configured to cause the first conductive coil to generate a magnetic flux. The second surface includes a first region made of a conductive material and a second region made of a nonconductive material. When viewed from the second surface, the first conductive coil is disposed mostly under the first region. The first conductive coil is configured to include a first section disposed near or on the second region to cause the magnetic flux to pass through the second region.