Integrated Antenna Layout With Isolators for Compact MIMO Isolation

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Multi-antenna structures in electronic devices face challenges due to high costs, large space occupation, and poor isolation between antennas, leading to interference.

Innovation Solution

An integrated antenna structure with a grounding element, antenna elements, and isolators disposed at the outer edge and between elements, ensuring orthogonal projections overlap with the grounding element to improve isolation and maintain miniaturization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple independent antennas are used to achieve multi-antenna functionality, then signal transmission capability is improved, but cost increases significantly

Engineering Contradiction:

Improvemulti-antenna functionalityVSAvoidcost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

Multiple antenna elements are integrated into a single planar structure with shared grounding and isolating components, combining multiple independent antenna functions into one unified device that provides multi-antenna functionality at reduced cost

Inventive Principle:

Principle #5Merging (Combining)

2Ease of manufacture

If integrated multi-antenna structure is used to reduce cost, then manufacturing cost is reduced, but space occupation increases

Engineering Contradiction:

ImprovecostVSAvoidspace occupation

Core Design Contradiction:

Ease of manufactureVSArea of stationary object

Solution Approach 1:

The antenna structure transitions from traditional three-dimensional stacked configurations to a two-dimensional planar layout, allowing multiple antenna elements to be arranged on a flat surface with optimized spacing and isolation, thereby reducing overall space occupation while maintaining functionality

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Area of stationary object

If antenna elements are placed closer to reduce space, then space occupation is reduced, but isolation between antennas deteriorates

Engineering Contradiction:

Improvespace occupationVSAvoidisolation between antennas

Core Design Contradiction:

Area of stationary objectVSReliability

Solution Approach 1:

Grounding elements and isolating structures are positioned between adjacent antenna elements to act as electromagnetic shields, providing effective isolation and reducing interference between closely-spaced antennas without requiring large separation distances

Inventive Principle:

Principle #24Intermediary (Mediator)

4Reliability

If antenna elements are placed closer to improve isolation, then isolation between antennas is improved, but the overall structure becomes more complex

Engineering Contradiction:

Improveisolation between antennasVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

Multiple antenna elements share common grounding structures and isolating components, merging redundant elements into unified structures that provide isolation and support functions for multiple antennas simultaneously, thereby reducing overall structural complexity

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12603426B2Integrated antenna structure

Publication Date: 2026.04.14 CHILISIN ELECTRONICS

AI summary

An integrated antenna structure includes a grounding element, a plurality of antenna elements, and a plurality of isolators. The grounding element has an opening. The antenna elements and the isolators are disposed at an outer edge of the grounding element and an edge of the opening. The isolators are located between the antenna elements. Orthogonal projections of the antenna elements and the isolators completely overlap with the grounding element.