Spatial Power-Combining Devices for High-Frequency Operation
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Solution Overview
Problem
Conventional spatial power-combining devices face challenges in achieving higher frequency operation and increased bandwidth due to the limitations in the size and spacing of amplifier assemblies, which can lead to device malfunction or interference if not properly aligned.
Innovation Solution
The spatial power-combining device employs a center waveguide section with a plurality of amplifier assemblies arranged coaxially, where the inner conductors are mechanically attached directly to the amplifier assemblies, eliminating the need for a center post, allowing for reduced spacing and enabling higher frequency operation and increased bandwidth by forming a cylindrical central cavity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If amplifier assemblies are spaced closer together to reduce device dimensions, then frequency operation can be increased and bandwidth increased, but interference between assemblies occurs
Solution Approach 1:
The patent transitions from a planar arrangement of amplifier assemblies to a three-dimensional cylindrical configuration, where assemblies are positioned around a central waveguide axis. This spatial reorganization in multiple dimensions allows closer spacing while maintaining isolation through the cylindrical geometry and controlled electromagnetic field distribution in three-dimensional space.
Solution Approach 2:
The patent modifies key geometric parameters including the radial positioning of amplifier assemblies, the diameter of the central waveguide, and the angular spacing between assemblies. These parameter changes optimize the balance between compactness and interference prevention, enabling higher frequency operation and broader bandwidth (4 GHz to 41 GHz) while maintaining assembly isolation.
2Object-generated harmful factors
If amplifier assemblies are spaced farther apart to prevent interference, then device function is maintained, but device dimensions increase and frequency operation is limited
Solution Approach 1:
By organizing amplifier assemblies in a three-dimensional cylindrical arrangement around a central waveguide, the patent achieves compact radial and axial dimensions while maintaining adequate spacing through the vertical and radial dimensions. This multi-dimensional configuration prevents interference without requiring large overall device dimensions.
Solution Approach 2:
The patent embeds the amplifier assemblies within a cylindrical structure that contains a central waveguide, creating a nested configuration where assemblies are positioned in the annular space between the central waveguide and the outer casing. This nesting approach maximizes space utilization and achieves compact dimensions while maintaining proper spacing.
3Stability of the object's composition
If a center post is used to support amplifier assemblies, then structural stability is provided, but spacing is increased and high-frequency operation is limited
Solution Approach 1:
The patent removes the traditional center post structure from the amplifier assembly configuration. Instead, the assemblies are directly mounted to the outer casing or to a support structure that does not extend into the central waveguide space. This extraction of the center post eliminates the spacing constraint and enables closer assembly positioning for high-frequency operation.
Solution Approach 2:
The patent shifts the structural support function from a central axial element (center post) to a distributed configuration where assemblies are supported by the outer casing or by mounting structures attached to the casing. This dimensional redistribution of support functions eliminates the need for central spacing and enables compact high-frequency design.
Data Source
AI summary
Spatial power-combining devices for higher frequency operation and increased bandwidth applications are disclosed. The spatial power-combining device includes a center waveguide section with a plurality of amplifier assemblies. The plurality of amplifier assemblies forms an input end and an output end, and an input inner conductor is mechanically attached to the input end, and an output inner conductor is mechanically attached to the output end. A method for joining a plurality of amplifier assemblies together to provide a center waveguide with an input end including an input connector receptacle and an output end including an output connector receptacle is also disclosed.