Bidirectional Antenna Structure With Resistivity Switching Layers

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Solution Overview

Problem

Current antenna systems for space and aerospace applications lack the capability for simultaneous and dynamic switching of radiation in opposite directions, requiring a compact and high-performance solution for various industries.

Innovation Solution

An antenna system integrated with two oppositely directed antennas and two layers of resistivity switching material, where a DC bias voltage controls the resistivity state of the material, allowing for simultaneous and switchable transmission of radiation by applying the voltage to the conductive electrode layers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple antennas are used for simultaneous transmission in opposite directions, then the transmission capability is improved, but the device size and complexity increase

Engineering Contradiction:
Improvetransmission capabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines two oppositely directed antennas into a single integrated antenna structure with shared components including a common feed network, support structure, and housing. This merging approach enables simultaneous transmission in opposite directions while avoiding the complexity of completely separate antenna systems, as the antennas share common structural and operational elements.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated antenna structure serves multiple functions simultaneously: it provides bidirectional transmission capability, maintains compact form factor, and enables independent control of each antenna through a unified design. The common feed network and shared structural components allow the system to perform multiple transmission functions without requiring separate dedicated systems for each direction.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Volume of moving object

If antenna system is made compact, then the size is reduced, but the performance and transmission capability may deteriorate

Engineering Contradiction:
Improveantenna system sizeVSAvoidantenna performance
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The patent achieves compact size by arranging the two antennas in a vertically stacked configuration rather than horizontally separated arrangements. This dimensional reorganization allows the antennas to be positioned close together in the vertical dimension while maintaining adequate separation for independent operation, thus reducing the overall footprint without compromising transmission performance.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The antenna elements are nested within a common housing structure with shared support elements and integrated feed networks. This nesting approach allows multiple antenna components to occupy overlapping or adjacent spatial volumes, achieving compact integration while maintaining the functional independence and performance characteristics of each antenna element.

Inventive Principle:
Principle #7Nested doll (Nesting)

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

Enables flexible and efficient simultaneous transmission of radiation in opposite directions, maintaining high performance and compact size, suitable for diverse applications including aerospace and automotive industries.

Implementation Method 1

the properties of the resistivity switching material may be changed from a high resistivity state to a low resistivity state by applying a DC bias voltage to the pair of electrically conductive electrode layers

Methodology Applied
Scientific EffectResistivity switching: Electrical Resistance

Data Source

PatentUS11955719B1Antenna system comprising two oppositely directed antennas and methods for controlling transmission of radiation through a multi-layered antenna structure
Publication Date: 2024.04.09 UNITED ARAB EMIRATES UNIVERSITY
  • US11955719B1 patent drawing
  • US11955719B1 patent drawing

AI summary

The technology disclosed relates to an antenna system comprising two oppositely directed antennas integrated in a structure including two layers of resistivity switching material, and methods for controlling transmission of radiation through the layers of resistivity switching material to thereby allow for simultaneous and switchable transmission of antenna radiation in two opposite directions.