Waveguide Assembly with Dielectric Core for Low-Loss Signal Transfer
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Solution Overview
Problem
Conductive waveguides experience high energy loss at high frequencies, limiting signal transmission distances, while dielectric waveguides face challenges with bending and precise alignment requirements for efficient signal transfer between multiple waveguides.
Innovation Solution
A waveguide assembly combining a conductive waveguide with dielectric waveguides, where the dielectric waveguides have a cladding and core region filled with different dielectric materials, are electromagnetically connected through the conductive waveguide, allowing for efficient energy transfer and flexible path configurations with reduced loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a conductive waveguide is used to transmit high frequency signals, then the signal can be transmitted over a certain distance, but high energy loss occurs limiting the effective transmission distance
Solution Approach 1:
The patent introduces a dielectric waveguide as an intermediary component between conductive waveguide sections. The dielectric waveguide has lower energy loss characteristics and serves as a mediator to transfer electromagnetic signals over longer distances with reduced attenuation, thereby extending the effective transmission distance while maintaining signal integrity.
Solution Approach 2:
The waveguide system employs a composite structure combining conductive waveguide and dielectric waveguide sections. This composite approach leverages the advantages of both materials: conductive waveguides provide structural support and mode control, while dielectric waveguides provide low-loss long-distance transmission capability, resolving the contradiction between transmission distance and energy loss.
2Adaptability or versatility
If a dielectric waveguide is bent to navigate around components, then the waveguide can adapt to spatial constraints, but signal loss increases and electromagnetic waves are emitted from the sides
Solution Approach 1:
The waveguide path is segmented into multiple sections with different characteristics. Straight sections use dielectric waveguides for low-loss transmission, while bent sections are designed with specific geometries or transition structures to minimize radiation loss. This segmentation allows the system to achieve both adaptability and low signal loss by optimizing each section for its specific function.
3Length of stationary object
If multiple dielectric waveguides are joined to achieve longer transmission paths, then the required path length can be extended, but precise alignment is required to reduce reflections and maintain signal quality
Solution Approach 1:
The waveguide connection structure employs a nested configuration where one waveguide section is inserted into or coupled with another in a telescoping manner. This nesting arrangement provides self-aligning features and tolerance compensation, allowing multiple waveguide sections to be joined to achieve extended lengths while reducing the impact of alignment errors on signal quality.
4Object-affected harmful factors
If a conductive shielding layer is added to contain electromagnetic waves in a dielectric waveguide, then wave containment is improved, but loss levels increase and propagation modes are restricted
Solution Approach 1:
The patent extracts the shielding function from a continuous conductive layer and implements it selectively at specific locations, such as at waveguide joints or in regions where electromagnetic containment is most critical. This selective shielding approach maintains wave containment where needed while minimizing the overall impact on signal loss and preserving desired propagation modes in other sections.
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 low-loss transmission of high-frequency signals over long distances and around tight bends, simplifying the alignment process between dielectric waveguides and reducing signal degradation.
Implementation Method 1
Dielectric waveguides include at least one dielectric material, and typically have two or more dielectric materials. A dielectric is an electrical insulating material that can be polarized by an applied electric field. The polarizability of a dielectric material is expressed by a value called the 'dielectric constant' or 'relative permittivity.'
Implementation Method 2
Dielectric waveguides and conductive waveguides are two types of waveguides used in communications applications to convey high frequency signals in the form of electromagnetic waves along a path.
Implementation Method 3
The mating end of the dielectric waveguide is received in the channel at the first end of the conductive waveguide to electromagnetically connect the dielectric waveguide to the conductive waveguide.
Data Source
AI summary
A waveguide assembly for propagating electromagnetic signals along a defined path includes a conductive waveguide and a dielectric waveguide. The conductive waveguide includes two side walls that extend parallel to each other between first and second ends of the conductive waveguide. A channel is defined between the two side walls. The dielectric waveguide includes a cladding formed of a first dielectric material. The cladding defines a core region therethrough that is filled with a second dielectric material different than the first dielectric material. A mating end of the dielectric waveguide is received in the channel at the first end of the conductive waveguide to electromagnetically connect the dielectric waveguide to the conductive waveguide. A remainder of the dielectric waveguide is exterior of the conductive waveguide and extends away from the conductive waveguide.