Antenna Radiation Pattern Adjustment Element

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Solution Overview

Problem

Existing antenna devices lack the ability to adjust their radiation patterns, limiting the gain and directionality of both omni-directional and directional antennas, which affects wireless signal transmission and reception.

Innovation Solution

Incorporating a radiation pattern adjustment element, such as a magnetic or dielectric material, positioned adjacent to the antenna element to modify the radiation pattern, allowing for increased gain and directionality adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If an omni-directional antenna is used to achieve homogeneous radiation pattern, then the radiation coverage is improved in all directions, but the gain and signal transceiving distance are reduced

Engineering Contradiction:

Improveradiation coverageVSAvoidgain

Core Design Contradiction:

Adaptability or versatilityVSPower

Solution Approach 1:

The patent introduces a movable radiation pattern adjustment element that can be positioned at different locations around the antenna element. By dynamically adjusting the position of this element, the radiation pattern can be transformed from omni-directional to directional, allowing the system to adapt between broad coverage and high gain requirements.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the physical parameters of the antenna system by introducing a radiation pattern adjustment element with specific magnetic permeability or dielectric constant. By adjusting the position parameter of this element, the radiation pattern characteristics (gain, directionality) are modified without changing the fundamental antenna structure.

Inventive Principle:

Principle #35Parameter changes

2Power

If a directional antenna is used to increase gain and signal transceiving distance, then the radiation is concentrated in specific directions, but the adaptability to different directions is limited

Engineering Contradiction:

ImprovegainVSAvoiddirectional coverage

Core Design Contradiction:

PowerVSAdaptability or versatility

Solution Approach 1:

The patent employs a movable adjustment element that enables the directional antenna to dynamically change its radiation characteristics. By repositioning the adjustment element, the antenna can shift its focused radiation direction or broaden its coverage pattern, providing adaptability while maintaining high gain capabilities.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent makes a single directional antenna structure capable of performing multiple functions: it can operate as a high-gain directional antenna for long-distance communication, or adjust to provide broader coverage when needed. The radiation pattern adjustment element enables one antenna structure to serve multiple operational requirements.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Power

If a radiation pattern adjustment element is added to enable pattern adjustment, then the gain and directionality are improved, but the device complexity increases

Engineering Contradiction:

ImprovegainVSAvoidantenna structure

Core Design Contradiction:

PowerVSDevice complexity

Solution Approach 1:

The patent achieves radiation pattern adjustment by changing the position parameter of a single adjustment element rather than redesigning the entire antenna structure. This approach modifies the electromagnetic field distribution through parameter adjustment (position, material properties) while keeping the basic antenna structure simple and unchanged.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent introduces a radiation pattern adjustment element as an intermediary component between the antenna element and the surrounding environment. This intermediary element mediates the electromagnetic field interaction, enabling pattern control without requiring complex active components or multiple antenna elements.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 enables improved signal transceiving capabilities by enhancing the gain and directionality of omni-directional antennas and alleviating directional limitations of directional antennas, while increasing energy density in desired directions.

Implementation Method 1

The radiation pattern adjustment element 3 could be a magnetic material with a predetermined permeability

Methodology Applied

Scientific EffectMagnetic permeability: Magnetic Field

Implementation Method 2

or a dielectric material with predetermined dielectric constant

Methodology Applied

Scientific EffectDielectric constant: Dielectric

Data Source

PatentUS7742002B2Antenna device with radiation pattern adjustment element

Publication Date: 2010.06.22 MITAC TECH CORP

AI summary

Disclosed is an antenna device for transceiving a wireless signal. The antenna device includes an antenna element adapted to establish a radiation pattern during transceiving the wireless signal; an antenna signal feeding line coupling to the antenna element for feeding the wireless signals transceived by the antenna element; and at least one radiation pattern adjustment element arranged at an adjacent position with respect to the antenna element and within the established radiation pattern of the antenna element to adjust the radiation pattern of the antenna element.