Bent Connection Element Antenna Bandwidth
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Solution Overview
Problem
Micro-sized antennas face challenges in achieving wide bandwidth and efficient operation due to limited space and increasing data transmission requirements in wireless communication systems, necessitating improved impedance matching and radiation patterns.
Innovation Solution
The antenna structure incorporates a radiation element, grounding element, short element, and a connection element with a bend, where the connection element has multiple segments forming bends, allowing for increased frequency bandwidth without requiring an additional radiator, thereby controlling antenna size and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the antenna size is reduced to fit limited space in micro-sized mobile communication products, then the antenna can be integrated into compact devices, but the frequency bandwidth and radiation efficiency deteriorate
Solution Approach 1:
The connection element is divided into multiple segments (first segment, second segment, third segment) with different orientations. The first segment extends in a first direction, the second segment extends in a second direction perpendicular to the first direction, and the third segment extends in a third direction. This segmentation allows each segment to contribute differently to the electrical length and impedance characteristics, enabling bandwidth enhancement within a compact volume.
Solution Approach 2:
The connection element transitions from a planar configuration to a three-dimensional structure by introducing segments in multiple directions (first direction, second direction perpendicular to first, and third direction). This dimensional expansion increases the effective electrical length and modifies the current distribution, thereby enhancing frequency bandwidth without proportionally increasing the physical volume.
2Adaptability or versatility
If additional radiators are added to increase frequency bandwidth, then the operating frequency bands can be expanded, but the device complexity and manufacturing cost increase
Solution Approach 1:
The connection element serves multiple functions: it provides mechanical support between the radiation element and grounding element, establishes electrical connections, and acts as an additional radiating structure that enhances bandwidth. By making the connection element multi-functional, the patent avoids adding separate components, thereby expanding frequency bandwidth without increasing device complexity.
Solution Approach 2:
The patent merges the function of bandwidth enhancement with the existing connection element structure. Instead of adding a separate radiator or bandwidth-enhancing component, the connection element is designed with multiple segments that simultaneously provide structural support and extend the electrical length to create additional operating frequency bands, thus combining multiple functions into a single element.
3Adaptability or versatility
If the connection element is made longer to increase electrical length and bandwidth, then the frequency bandwidth increases, but the antenna volume and manufacturing cost increase
Solution Approach 1:
The connection element employs a bent configuration with segments in multiple directions rather than a straight line. The first segment extends in a first direction, the second segment extends in a second direction perpendicular to the first direction, and the third segment extends in a third direction. This curved/bent path increases the effective electrical length within a compact physical footprint, thereby enhancing bandwidth without proportionally increasing the overall length or volume.
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 design effectively increases frequency bandwidth by creating additional operating frequency bands through capacitance effects, maintaining high antenna efficiency and average values, while avoiding the need for extra radiators and minimizing size and cost increments.
Implementation Method 1
This design effectively increases frequency bandwidth by creating additional operating frequency bands through capacitance effects
Data Source
AI summary
An antenna structure consists of a radiation element, a grounding element, a short element, a connection element, and a signal feeding element. The short element is coupled between the radiation element and the grounding element. The connection element is disposed between the radiation element and the grounding element. The connection element has at least a first segment and a second segment, wherein the first segment and the second segment form a bend. The signal feeding element is coupled between the connection element and the grounding element. The first segment of the connection element is substantially parallel to the grounding element and is at a designated distance from the grounding element.