Dual-Polarized Patch Array With Capacitive Coupling for FR3 Gain

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Solution Overview

Problem

The growing demand for high data rates in wireless applications such as wearables and virtual reality leads to severe data traffic issues at commonly used bands, necessitating higher spectral efficiency and capacity, which existing MIMO antenna technologies struggle to provide effectively.

Innovation Solution

A low-cost high-gain polarized base station and user equipment (UE) antenna array is designed, incorporating via-fed dual-polarized patches and capacitive-fed dual-polarized patches capacitively coupled through air gaps and dielectric layers, respectively, to enhance spectral efficiency and capacity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional MIMO antenna technologies are used, then device complexity is reduced, but spectral efficiency and data rates are insufficient

Engineering Contradiction:

Improvespectral efficiencyVSAvoidantenna array complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The antenna array is segmented into multiple dual-polarized patch elements arranged in a structured configuration. Each patch is independently fed through capacitive structures, allowing individual optimization while maintaining overall system efficiency. This segmentation enables higher spectral efficiency through spatial diversity without proportionally increasing system complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The antenna array design provides multi-functionality by supporting both vertical and horizontal polarizations simultaneously through dual-polarized patches. This universal design allows the same antenna structure to handle multiple data streams and polarization modes, improving spectral efficiency without requiring separate antenna systems for each function.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Productivity

If high-gain antenna arrays are implemented, then data rates increase, but manufacturing cost increases

Engineering Contradiction:

Improvedata rateVSAvoidmanufacturing cost

Core Design Contradiction:

ProductivityVSEase of manufacture

Solution Approach 1:

The patent employs inexpensive capacitive feeding structures and standard dual-polarized patch designs that can be manufactured using conventional PCB techniques. These cost-effective components are arranged in a high-gain array configuration, achieving high data rates without requiring expensive specialized antenna elements or complex manufacturing processes.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The antenna array achieves high gain through parameter optimization including patch dimensions, spacing, and capacitive coupling configurations. By carefully adjusting these geometric and electrical parameters rather than using complex active components, the design attains high data rate performance while maintaining low manufacturing costs through standard fabrication processes.

Inventive Principle:

Principle #35Parameter changes

3Productivity

If capacitive coupling through air gaps is used, then spectral efficiency improves, but manufacturing precision requirements increase

Engineering Contradiction:

Improvespectral efficiencyVSAvoidair gap precision

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The capacitive coupling structures are designed with local quality optimization, where the air gap dimensions and capacitor geometries are specifically tailored at each coupling point to achieve the desired electrical performance. This localized optimization allows spectral efficiency improvement while accommodating standard manufacturing tolerances through careful design of the coupling region properties.

Inventive Principle:

Principle #3Local quality

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 proposed antenna array achieves high-gain and low-cost solutions for base stations and user equipment, effectively addressing the challenge of increasing data rates and spectral efficiency, particularly in the FR3 band.

Implementation Method 1

The first capacitive-fed dual-polarized patch is capacitively coupled to the via-fed dual-polarized patch through an air gap

Methodology Applied

Scientific EffectCapacitive coupling: Capacitance

Implementation Method 2

The second capacitive-fed dual-polarized patch is capacitively coupled to the first capacitive-fed dual-polarized patch through a dielectric layer

Methodology Applied

Scientific EffectCapacitive coupling through dielectric: Capacitance

Data Source

PatentUS20250030176A1Low-cost high-gain dual polarized base station and user equipment antenna array

Publication Date: 2025.01.23 SAMSUNG ELECTRONICS CO LTD

AI summary

An apparatus includes a via-fed dual-polarized patch, a first capacitive-fed dual-polarized patch, and a second capacitive-fed dual-polarized patch. The first capacitive-fed dual-polarized patch is capacitively coupled to the via-fed dual-polarized patch through an air gap. The second capacitive-fed dual-polarized patch is capacitively coupled to the first capacitive-fed dual-polarized patch through a dielectric layer.