Capacitive Conductor-Group Antenna for Low-Reflection Radiation
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Solution Overview
Problem
Existing antenna designs face challenges with reduced amplitude and effectiveness due to electromagnetic wave reflections from metal conductors, requiring large numbers of resonator structures to mitigate these effects.
Innovation Solution
A novel antenna design incorporating a first connection conductor group, a second connection conductor group, a third connection conductor group, a first conductor, and a second conductor, with capacitive connections and a feed line, which exhibits an artificial magnetic conductor character to minimize wave reflections and maintain radiation efficiency across multiple frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large number of resonator structures are used to reduce wave reflections, then the effectiveness of reducing reflected waves improves, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent combines multiple connection conductor groups (first, second, and third connection conductor groups) into a unified antenna structure with integrated conductors (first conductor, second conductor, and third conductor). This merging approach achieves the wave reflection reduction function that previously required multiple separate resonator structures, thereby reducing device complexity while maintaining effectiveness.
Solution Approach 2:
The antenna structure is designed to perform multiple functions: it serves as both the radiating element and the wave reflection reduction mechanism through its conductor groups and connection conductors. The feed line electrically connects to the first conductor, enabling the structure to function as a complete antenna system without requiring separate resonator components, thus reducing manufacturing difficulty.
2Loss of energy
If the distance between the antenna and metal conductor is set to 1/4 wavelength to reduce reflected wave effects, then the radiation efficiency improves, but the antenna height increases
Solution Approach 1:
The patent introduces connection conductors (first, second, and third connection conductors) as intermediary elements between the antenna structure and the ground plane. These connection conductors with specific capacitance values create an artificial magnetic conductor effect that reduces wave reflections without requiring the antenna to be positioned at 1/4 wavelength from the ground, thereby maintaining low-profile dimensions while improving radiation efficiency.
Solution Approach 2:
The patent changes the electrical parameters by introducing specific capacitance values (e.g., 0.5-2.0 pF for connection conductors) to create the desired electromagnetic effect. This parameter-based approach allows the antenna to achieve optimal performance without being constrained by the 1/4 wavelength height requirement, enabling low-profile design with improved radiation efficiency.
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 design achieves improved radiation efficiency and broad-band performance by reducing wave reflections and maintaining effective electromagnetic wave emission across various frequency bands, providing a novel antenna, wireless communication module, and device configuration.
Implementation Method 1
The first conductor capacitively connects the first connection conductor group and the second connection conductor group
Implementation Method 2
The first conductor capacitively connects the second connection conductor group and the third connection conductor group
Implementation Method 3
Electromagnetic waves emitted from an antenna are reflected by a metal conductor. A 180-degree phase shift occurs in the electromagnetic waves reflected by the metal conductor.
Data Source
AI summary
An antenna includes a first conductor group including first conductors aligned in a first direction, a second conductor group, a third conductor group, first and second conductors, and a feed line configured to be electromagnetically connected to the first conductor. The second conductor group includes second conductors aligned in the first direction. The second conductor group is aligned with the first conductor group in a second direction intersecting the first direction. The third conductor group includes third conductors aligned in the first direction. The third conductor group is aligned with the first and second conductor groups in the second direction. The first conductor capacitively connects the first conductor group and the second conductor group. The first conductor capacitively connects the second conductor group and the third conductor group. The second conductor is electrically connected to the first conductor group, the second conductor group, and the third conductor group.