Reradiation Repeater Unit Cells Phase Delay

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Solution Overview

Problem

High-frequency wireless communication systems face challenges in maintaining stable service quality due to increased signal attenuation and reflection losses in building-dense areas, leading to local shade zones and varying radio wave environments.

Innovation Solution

A reradiation repeater comprising a dielectric substrate with a ground conductor and unit cells that reradiate incident radio waves from different directions in the same direction, enhancing coverage and stability by adjusting the phase delay characteristics of the unit cells to redirect radio waves effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If high-frequency wireless communication is used, then communication capacity and speed are improved, but signal attenuation and reflection loss increase

Engineering Contradiction:

Improvecommunication capacityVSAvoidsignal attenuation

Core Design Contradiction:

ProductivityVSLoss of energy

Solution Approach 1:

The repeater device is divided into multiple unit cells arranged in a matrix, where each unit cell independently processes radio waves. This segmentation allows the system to maintain high-frequency operation while distributing the signal processing function across multiple elements, reducing overall signal loss through coordinated reradiation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The repeater acts as an intermediary device between the base station and the shadow zone. It receives radio waves from the base station, processes them through its unit cells, and reradiates them into the shadow zone, effectively mediating the signal transmission and compensating for the high-frequency attenuation issues.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Speed

If high-frequency wireless communication is used, then communication speed is improved, but reflection loss and shade zones increase

Engineering Contradiction:

Improvecommunication speedVSAvoidreflection loss

Core Design Contradiction:

SpeedVSObject-affected harmful factors

Solution Approach 1:

Each unit cell in the repeater is designed with specific geometric characteristics that give it localized properties for manipulating radio waves. The unit cells have different shapes and orientations that create specific phase delays, allowing the system to locally control the reradiation pattern and reduce reflection losses in specific directions toward the shadow zone.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The repeater transforms the radio wave propagation by adding a spatial dimension through its matrix arrangement of unit cells. By controlling the phase and direction of reradiation from each unit cell position, the system creates a new propagation path in a different spatial dimension, bypassing the reflection loss problems of direct high-frequency transmission.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Area of stationary object

If radio waves are redirected to shadow zones, then coverage area is improved, but installation location flexibility decreases

Engineering Contradiction:

Improvecoverage areaVSAvoidinstallation location flexibility

Core Design Contradiction:

Area of stationary objectVSAdaptability or versatility

Solution Approach 1:

The unit cells in the repeater are designed with adjustable phase delay characteristics that can be dynamically configured. This allows the repeater to adapt its reradiation pattern based on the installation environment, maintaining coverage area flexibility while extending into shadow zones. The dynamic adjustment of unit cell properties enables the system to optimize performance for different installation locations.

Inventive Principle:

Principle #15Dynamics

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 solution provides enhanced radio wave coverage in shadow zones and flexible installation capabilities, ensuring stable communication services even in varying environments by reradiating radio waves in a consistent direction, thus improving communication quality in high-frequency wireless systems.

Implementation Method 1

adjusting the phase delay characteristics of the unit cells to redirect radio waves effectively

Methodology Applied

Scientific EffectPhase delay:

Implementation Method 2

the unit cells reradiate radio waves in the same direction by directing the radio waves which are incident onto the unit cells at different angles to a same direction

Methodology Applied

Scientific EffectReradiation:

Data Source

PatentUS10116059B2Reradiation repeater

Publication Date: 2018.10.30 SAMSUNG ELECTRONICS CO LTD

AI summary

According to an embodiment of the present invention, a reradiation repeater may comprise a dielectric substrate, a ground conductor provided on a surface of the dielectric substrate, and a plurality of unit cells provided on another surface of the dielectric substrate, wherein the unit cells reradiate radio waves in the same direction by directing the radio waves which are incident onto the unit cells at different angles to a same direction. The reradiation repeater may facilitate to select, e.g., an installation location and secure a good reradiation capability even when the installation environment is changed (e.g., a variation in the installation location of base station facility), contributing to coverage of a shadow zone. The reradiation repeater may be implemented in various manners according to embodiments of the present invention.