Multi-Band Antenna Feeding Layout for Lower Signal Interference

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing electronic products with communication capabilities, such as antenna devices, have not met the necessary requirements in terms of performance and operational reliability.

Innovation Solution

The electronic device incorporates a substrate with a first and second antenna unit, each having distinct pattern structures and feeding structures, including folding points with chamber or arc-angle structures, to allow different frequencies to operate simultaneously, reducing signal interference and optimizing space utilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional antenna structures are used, then the device structure is simple, but signal interference occurs and performance is insufficient

Engineering Contradiction:

Improvesignal qualityVSAvoidantenna structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The antenna structure is divided into multiple independent antenna units (first antenna unit, second antenna unit, third antenna unit) with different pattern structures. Each antenna unit operates at different frequencies, segmenting the overall antenna system to reduce signal interference while maintaining reliable communication performance across multiple frequency bands.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different antenna units are designed with distinct local pattern structures optimized for specific frequency ranges. The first antenna unit has a first pattern structure for first frequency, the second antenna unit has a second pattern structure for second frequency, and the third antenna unit has a third pattern structure for third frequency, allowing each local region to perform its specialized function optimally.

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If multiple antenna units with different pattern structures are used, then different frequencies can operate simultaneously with reduced interference, but the device complexity increases

Engineering Contradiction:

Improvefrequency operation capabilityVSAvoidfeeding structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Multiple feeding structures (first feeding structure, second feeding structure, third feeding structure) are merged into a single integrated feeding unit that couples all three antenna units. This combining approach allows simultaneous excitation of multiple antenna units at different frequencies while sharing common feeding resources, reducing overall system complexity despite the presence of multiple antenna elements.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The feeding unit is designed with multi-functional capability to simultaneously feed multiple antenna units operating at different frequencies. The feeding structure can distribute signals to the first, second, and third antenna units through its multiple feeding structures, making it a universal feeding system that handles multiple frequency bands and antenna elements through a single integrated component.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Volume of moving object

If folding points with chamber or arc-angle structures are used, then space utilization is optimized, but manufacturing complexity increases

Engineering Contradiction:

Improvespace utilizationVSAvoidfeeding line fabrication

Core Design Contradiction:

Volume of moving objectVSEase of manufacture

Solution Approach 1:

The feeding lines incorporate arc-angle structures at their folding points instead of sharp corners. This curvature design allows the feeding lines to bend smoothly around chamber structures, optimizing space utilization within the antenna unit while maintaining manufacturability through standardized curved geometry that can be easily fabricated using conventional PCB or flexible circuit techniques.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Data Source

PatentUS12424769B2Electronic device

Publication Date: 2025.09.23 INNOLUX CORP

AI summary

An electronic device is provided. The electronic device includes a substrate, a first antenna unit disposed on the substrate and including a first pattern structure, a second antenna unit disposed on the substrate and including a second pattern structure, and a feeding unit disposed on the substrate and including a first feeding structure coupled to the first pattern structure and a second feeding structure coupled to the second pattern structure. The second pattern structure is different from the first pattern structure. At least one of the first feeding structure and the second feeding structure includes at least a feeding line with a folding point, and the folding point has a chamber structure or an arc-angle structure.