Waveguide Array Antenna Synthesis via Parameter Optimization
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Solution Overview
Problem
Existing waveguide array antennas face complexity in determining configuration parameters for radiation elements due to mutual coupling, which affects radiation characteristics, especially in high-frequency applications like 77 GHz radar systems, making it challenging to achieve desired radiation patterns and manufacturing efficiency.
Innovation Solution
A method is provided to determine and generate configuration parameters for waveguide array antennas by associating radiation characteristics with resonance length and rotation angle, using a dataset to optimize the arrangement, sizing, and orientation of radiation elements, allowing for precise fabrication to meet specific criteria such as beamwidth and sidelobe levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional methods are used to determine configuration parameters for waveguide array antennas, then manufacturing processes are simplified, but radiation characteristics are affected by mutual coupling making it difficult to achieve desired radiation patterns
Solution Approach 1:
The patent transforms the complex problem of determining configuration parameters (resonance lengths and rotation angles) by establishing mathematical relationships between these parameters and radiation characteristics. By changing the approach from direct complex calculation to using transformation matrices and iterative optimization, the method achieves accurate radiation patterns while managing computational complexity.
Solution Approach 2:
The patent introduces transformation matrices as an intermediary tool to bridge the relationship between configuration parameters and radiation characteristics. These matrices serve as a mathematical mediator that simplifies the complex mutual coupling calculations by breaking them down into manageable transformation steps that can be iteratively solved.
2Manufacturing precision
If configuration parameters are optimized for precise radiation characteristics, then radiation pattern accuracy improves, but manufacturing complexity increases
Solution Approach 1:
The patent performs preliminary calculation and optimization of configuration parameters using computational methods before the actual manufacturing process. By pre-determining the exact resonance lengths and rotation angles through iterative optimization algorithms, the method enables precise radiation characteristics while simplifying the physical manufacturing process to straightforward fabrication based on pre-calculated specifications.
3Measurement precision
If computational methods are used to determine configuration parameters, then radiation characteristics accuracy improves, but calculation complexity increases
Solution Approach 1:
The patent segments the complex calculation problem into manageable parts by using transformation matrices that break down the mutual coupling calculations into sequential transformation steps. This segmentation allows the complex radiation characteristic calculations to be performed in discrete, systematic stages, improving accuracy while making the computational process more tractable.
Solution Approach 2:
The patent implements an iterative optimization process that uses feedback from calculated radiation characteristics to adjust configuration parameters. The method continuously refines the resonance lengths and rotation angles by comparing calculated radiation patterns with desired patterns and adjusting parameters accordingly, achieving high precision through systematic feedback loops.
Data Source
AI summary
A method may involve receiving one or more criteria for a waveguide array antenna. The waveguide array antenna includes a plurality of waveguides. The plurality of waveguides may include a plurality of radiation elements. The method may also involve determining a dataset configured to associate radiation characteristics of a given radiation element with given configuration parameters including a given resonance length a given rotation angle of the given radiation element. The method also involves generating configuration parameters for the plurality of radiation elements based on the dataset. The configuration parameters may cause the waveguide array antenna to be associated with the one or more criteria. The method may also involve providing a request for fabrication of the waveguide array antenna to have the plurality of radiation elements configured according to the configuration parameters.