Abstract
A complex image method is presented for the analysis of a subwavelength circular aperture in a perfectly conducting screen of inflnitesimal thickness illuminated by a plane wave. The method is based on the Bethe-Bouwkamp quasi static model of the aperture fleld and uses the spectral domain formulation as the point of departure. Closed-form expressions are obtained for the electromagnetic flelds valid for all observation points. Sample numerical results demonstrate the accuracy and e-ciency of the method for both normal and oblique illuminations, including an evanescent wave. In the latter case, the results show a circulating power ∞ux and enhanced fleld conflnement near the aperture.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
