Methods, computer readable media, and graphical user interfaces for analysis of frequency selective surfaces
First Claim
1. A method for analyzing a frequency selective surface wherein at least one act of the method is performed by a processing system, comprising:
- defining a frequency range comprising a plurality of frequency values within the frequency range;
determining a frequency dependent permittivity for each of the plurality of frequency values across the frequency range for a substrate included in a frequency selective surface;
determining a frequency dependent conductivity for each of the plurality of frequency values across the frequency range for a conductive material included in the frequency selective surface;
analyzing the frequency selective surface using a method of moments analysis at each of the plurality of frequency values for an incident electromagnetic energy impinging on the frequency selective surface by including the frequency dependent permittivity and the frequency dependent conductivity in the method of moments analysis to develop a frequency response function;
defining a geometry of the frequency selective surface comprising the substrate and the conductive material disposed on the substrate to form an array of resonance elements; and
determining an emissivity of the frequency selective surface at each of the plurality of frequency values using the frequency dependent permittivity properties of the substrate and the frequency dependent conductivity properties of the conductive material.
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Accused Products
Abstract
A frequency selective surface (FSS) and associated methods for modeling, analyzing and designing the FSS are disclosed. The FSS includes a pattern of conductive material formed on a substrate to form an array of resonance elements. At least one aspect of the frequency selective surface is determined by defining a frequency range including multiple frequency values, determining a frequency dependent permittivity across the frequency range for the substrate, determining a frequency dependent conductivity across the frequency range for the conductive material, and analyzing the frequency selective surface using a method of moments analysis at each of the multiple frequency values for an incident electromagnetic energy impinging on the frequency selective surface. The frequency dependent permittivity and the frequency dependent conductivity are included in the method of moments analysis.
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Citations
28 Claims
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1. A method for analyzing a frequency selective surface wherein at least one act of the method is performed by a processing system, comprising:
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defining a frequency range comprising a plurality of frequency values within the frequency range; determining a frequency dependent permittivity for each of the plurality of frequency values across the frequency range for a substrate included in a frequency selective surface; determining a frequency dependent conductivity for each of the plurality of frequency values across the frequency range for a conductive material included in the frequency selective surface; analyzing the frequency selective surface using a method of moments analysis at each of the plurality of frequency values for an incident electromagnetic energy impinging on the frequency selective surface by including the frequency dependent permittivity and the frequency dependent conductivity in the method of moments analysis to develop a frequency response function; defining a geometry of the frequency selective surface comprising the substrate and the conductive material disposed on the substrate to form an array of resonance elements; and determining an emissivity of the frequency selective surface at each of the plurality of frequency values using the frequency dependent permittivity properties of the substrate and the frequency dependent conductivity properties of the conductive material. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for analyzing a frequency selective surface wherein at least one act of the method is performed by a processing system, comprising:
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defining a frequency range comprising a plurality of frequency values within the frequency range; determining a frequency dependent permittivity for each of the plurality of frequency values across the frequency range for a substrate included in a frequency selective surface; analyzing the frequency selective surface using a method of moments analysis at each of the plurality of frequency values for an incident electromagnetic energy impinging on the frequency selective surface by including the frequency dependent permittivity in the method of moments analysis to develop a frequency response function; and analyzing the frequency response function to determine at least one filter response coefficient selected from the group consisting of major peaks, magnitude, trapezoidal integration of area under the response curve, ratios of user-specified regions of the plot, transient slope and response time of the filter response. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method for analyzing a frequency selective surface wherein at least one act of the method is performed by a processing system, comprising:
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defining a frequency range comprising a plurality of frequency values within the frequency range; determining a frequency dependent conductivity for each of the plurality of frequency values across the frequency range for a conductive material included in a frequency selective surface; and analyzing the frequency selective surface using a method of moments analysis at each of the plurality of frequency values for an incident electromagnetic energy impinging on the frequency selective surface by including the frequency dependent conductivity in the method of moments analysis to develop a frequency response function. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A Graphical User Interface (GUI) for modeling, analyzing and designing frequency selective surfaces, comprising:
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an interface element for defining a frequency range comprising a plurality of frequency values within the frequency range; an element for accessing a frequency dependent permittivity for each of the plurality of frequency values across the frequency range for a substrate included in a frequency selective surface; an element for accessing a frequency dependent conductivity for each of the plurality of frequency values across the frequency range for a conductive material included in the frequency selective surface; and an element for controlling a method of moments analysis module to analyze, at each of the plurality of frequency values, the frequency selective surface for an incident electromagnetic energy impinging on the frequency selective surface by including the frequency dependent permittivity and the frequency dependent conductivity in the method of moments analysis. - View Dependent Claims (20, 21)
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22. A non-transitory computer readable media including computer executable instructions, which when executed on a processor perform acts, comprising:
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defining a frequency range comprising a plurality of frequency values within the frequency range; determining a frequency dependent permittivity for each of the plurality of frequency values across the frequency range for a substrate included in a frequency selective surface; determining a frequency dependent conductivity for each of the plurality of frequency values across the frequency range for a conductive material included in a frequency selective surface; and analyzing the frequency selective surface using a method of moments analysis at each of the plurality of frequency values for an incident electromagnetic energy impinging on the frequency selective surface by including the frequency dependent permittivity and the frequency dependent conductivity in the method of moments analysis to develop a frequency response function. - View Dependent Claims (23, 24, 26)
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25. An apparatus, comprising:
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a frequency selective surface comprising a pattern of conductive material formed on a substrate to form an array of resonance elements; and wherein at least one aspect of the frequency selective surface is determined by; defining a frequency range comprising a plurality of frequency values within the frequency range; determining a frequency dependent permittivity for each of the plurality of frequency values across the frequency range for the substrate; determining a frequency dependent conductivity for each of the plurality of frequency values across the frequency range for the conductive material; and analyzing the frequency selective surface using a method of moments analysis at each of the plurality of frequency values for an incident electromagnetic energy impinging on the frequency selective surface by including the frequency dependent permittivity and the frequency dependent conductivity in the method of moments analysis to develop a frequency response function. - View Dependent Claims (27, 28)
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Specification