Dielectric Coupling Plate for Parallel Waveguide RF Signal Transfer
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Solution Overview
Problem
Existing RF signal transfer systems between parallel waveguides in antennas suffer from significant signal losses and interference, particularly due to the reflector geometry, which affects the efficiency of signal coupling and overall system performance.
Innovation Solution
The implementation of coupling structures, such as plates with dielectric materials and metallic patches, positioned between parallel waveguides to facilitate capacitive coupling, along with reflectors to manage signal direction and reduce leakage, enables efficient RF signal transfer by minimizing insertion loss and optimizing signal orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional RF signal transfer between parallel waveguides is used, then signal transfer is achieved, but significant signal losses and interference occur due to reflector geometry
Solution Approach 1:
A dielectric plate is introduced as an intermediary component between the parallel waveguides to facilitate capacitive coupling. This mediator enables efficient RF signal transfer while eliminating the need for traditional reflector geometries that cause signal losses and interference
Solution Approach 2:
The patent changes the coupling mechanism from traditional geometric reflection to capacitive coupling by introducing a dielectric material with specific permittivity properties. This parameter change in the coupling method fundamentally reduces signal insertion loss and improves transfer efficiency
2Reliability
If larger antenna aperture is used to improve signal transfer, then communication effectiveness increases, but weight and cost increase
Solution Approach 1:
By changing the signal transfer mechanism to capacitive coupling with dielectric plates, the system achieves effective communication with a smaller antenna aperture. This parameter change in the coupling method allows reduced physical dimensions while maintaining communication effectiveness
Solution Approach 2:
The patent replaces the traditional mechanical/geometric reflector system with an electromagnetic field-based capacitive coupling system using dielectric materials. This substitution enables effective signal transfer with reduced mechanical structure, decreasing antenna weight and size
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 approach enhances the efficiency of RF signal transfer between waveguides, reducing signal losses and interference, allowing for a smaller antenna aperture, lower weight, and reduced costs while maintaining effective communication with satellites.
Implementation Method 1
coupling structures, such as plates with dielectric materials and metallic patches, positioned between parallel waveguides to facilitate capacitive coupling
Implementation Method 2
reflectors to manage signal direction and reduce leakage
Data Source
AI summary
A steerable antenna comprising (1) a lower waveguide configured to direct radio frequency signals in a specific direction, (2) an upper waveguide positioned substantially parallel to the lower waveguide, wherein the upper waveguide is configured to direct the radio frequency signals in another direction substantially opposite to the specific direction, and (3) a plate coupled between the lower waveguide and the upper waveguide, wherein the plate includes one or more coupling elements that facilitate transferring the radio frequency signals between the lower waveguide to the upper waveguide. Various other apparatuses, systems, and methods are also disclosed.