Dual-Section Antenna Element for Electronic Device
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Solution Overview
Problem
Existing antenna designs for electronic devices are restricted by the surface form of the casing, limiting the flexibility and effectiveness of antenna element formation, especially in terms of frequency range and space utilization.
Innovation Solution
The electronic device incorporates a dual-section antenna element with a conductive material applied to the casing, where a dielectric or insulating body is interposed between the sections, and a power supply unit connects them through a through hole, allowing for a double resonance configuration that is not restricted by the casing's surface shape, enabling efficient reception of various signal frequencies and effective space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional single-section antenna is formed on the casing surface, then the antenna can be integrated into the device, but the antenna performance is limited by the casing surface form and cannot achieve effective reception of various signal frequencies
Solution Approach 1:
The antenna element is divided into a first section formed on the outer surface of the casing and a second section formed on the inner surface of the casing, with a dielectric body interposed between them. This segmentation allows each section to be optimized independently for different frequency ranges, enabling the antenna to receive various signal frequencies effectively without excessive structural complexity.
Solution Approach 2:
The antenna structure transitions from a conventional two-dimensional surface-mounted design to a three-dimensional configuration by extending the antenna element through the casing thickness. The first section on the outer surface and the second section on the inner surface create a volumetric antenna structure that overcomes the limitations of surface form constraints.
2Ease of manufacture
If the antenna element is formed only on the outer surface of the casing, then the manufacturing process is simple, but the antenna cannot effectively receive long wavelength signals
Solution Approach 1:
The antenna element is segmented into a first section on the outer surface and a second section on the inner surface of the casing. This segmentation maintains manufacturing simplicity by using standard conductive material application processes on both surfaces, while the extended three-dimensional structure enables effective reception of long wavelength signals that cannot be achieved with surface-only antennas.
Solution Approach 2:
A dielectric body is introduced as an intermediary between the first section and the second section of the antenna element. This dielectric body maintains the electrical connection and structural integrity between the two sections while allowing the antenna to function effectively across a broader frequency range, including long wavelength signals.
3Adaptability or versatility
If a through hole is formed in the casing to connect the power supply unit, then the dual-section antenna can be powered, but the casing structure is modified
Solution Approach 1:
The through hole in the casing serves multiple functions: it provides a passage for the power supply unit to connect to the antenna element, and it allows the dielectric body to extend through the casing to position the second section of the antenna on the inner surface. This multi-functional design minimizes the impact on the overall casing structure while enabling enhanced antenna functionality.
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 allows for the formation of an antenna element that is not limited by the casing's surface form, enabling efficient reception of long wavelength signals and securing antenna characteristics, while also allowing for the use of space effectively, thus improving the device's antenna performance.
Implementation Method 1
A dielectric body or an insulating body is interposed between the first section and the second section
Implementation Method 2
The antenna element is composed of a first section which is formed by applying a conductive material on a first principal surface of the casing
Implementation Method 3
An edge portion that forms a border with the predetermined area in the second section is supplied with electrical power by the power supply unit and operates as a slot antenna
Data Source
AI summary
Provided is an electronic device in which, if an antenna element is formed on the surface of a housing, restrictions on the formation of the antenna element are less likely to arise. The following are provided: a rear case, an antenna element, and a power supply unit that supplies power to the antenna element. The antenna unit comprises a first section that is formed by applying a conductive material onto a first main surface of the rear case, and a second section. A dielectric or an insulator is interposed between the first section and the second section.