Helical Antenna Winding Density for UHF Range in Elastic Structures
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Solution Overview
Problem
The existing transmitting and/or receiving devices embedded in elastic structures, such as air spring flexible members, have limited radio wave range due to insufficient transmission energy levels.
Innovation Solution
The antenna is designed with a length between 40 and 100 mm and a winding turns density of 5 to 15 turns per cm, with specific configurations such as 55 mm length and 13.4 turns/cm for maximum irradiation power, and wound in a helical shape around a carrier filament, allowing for increased radiation without disrupting the elastomer matrix.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If high winding turns density is used (as in prior art), then the antenna can be compact, but the radio wave range is limited due to insufficient transmission energy
Solution Approach 1:
The patent changes the geometric parameters of the antenna by reducing winding turns density from high values to specifically 5-15 turns per cm, and increasing antenna length to 40-100 mm. This parameter optimization creates a resonant structure that naturally enhances radiation efficiency and transmission energy in the UHF band without requiring increased power consumption.
Solution Approach 2:
The patent transitions from a compact coil geometry to an extended helical structure that better utilizes the three-dimensional space within the elastomer matrix. This dimensional reconfiguration allows the antenna to achieve optimal radiation patterns and impedance matching for UHF frequencies, improving transmission energy efficiency.
2Power
If antenna length is increased to improve radiation, then the elastomer matrix structure may be disrupted
Solution Approach 1:
The patent optimizes the antenna length parameter to fall within 40-100 mm, with a preferred value of 55 mm. This specific length range achieves maximum irradiation power while maintaining compatibility with the elastomer matrix structure, preventing disruption to the flexible member's mechanical properties.
Solution Approach 2:
The patent applies different winding turns densities in different regions of the antenna structure. By using 5-15 turns per cm rather than uniformly high density, the antenna achieves sufficient radiation efficiency while leaving adequate space within the elastomer matrix to preserve the material's structural integrity and flexibility.
3Volume of moving object
If winding turns density is increased to compact the antenna, then the irradiation power decreases
Solution Approach 1:
The patent identifies and implements optimal parameter values: winding turns density of 5-15 turns per cm and antenna length of 40-100 mm. These parameter changes create a resonant helical structure that maximizes irradiation power in the UHF band while maintaining a compact form factor suitable for embedding in air spring flexible members.
Solution Approach 2:
The patent creates a dynamic balance between antenna compactness and irradiation power through the helical winding configuration. The specific winding parameters allow the antenna to achieve optimal radiation efficiency at UHF frequencies while maintaining the mechanical flexibility required for integration into elastic structures.
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
This configuration significantly enhances the range of radio waves in the UHF band, achieving an over-proportional increase in irradiation power with a shorter electrically conductive filament length, thereby improving the device's performance without increasing transmission power.
Implementation Method 1
The transmitting and/or receiving device transmits and/or receives radio waves in the UHF band
Data Source
AI summary
An apparatus transmits and/or receives radio waves in the UHF band and is configured for installation in an elastic structure. The apparatus includes at least one electronic component and an antenna embedded in the elastic structure. The antenna is connected to the electronic component and includes at least one filament configured to be plastically deformable and/or elastically deformable. The filament is helically wound to a predetermined antenna length (L) and defines an antenna winding turns density per cm of the antenna length. The antenna length (L) is between 4 cm and 10 cm and the antenna winding turns density lies in a range of 5 to 15 winding turns per cm of the antenna length.