Abstract
We deal with the transmission cross section for various resonant small apertures. As examples we consider H-shaped aperture and C-shaped aperture (as a bisected structure of the H-shaped aperture), ridged circular aperture, CSRR (Complementary split ring resonator), and λ over 2 narrow slit type of resonant aperture. It is observed that the maximum TCS is given by 2G over 4π λ2 [m2] irrespectively of the aperture shape and physical size for the four cases (H-shaped, C-shaped, ridged circular apertures, and CSRR type aperture) where the gain G corresponds to that (1.5) of short Hertzian dipole. Also for the λ over 2-resonant narrow slot, the maximum TCS is found to be the value given by 2G over 4π λ2 [m2], where G(1.64) corresponds to that of λ over 2 - electric dipole. This result indicates that the transmission cross section can be increased by enhancing the gain(directivity) of the resonant aperture as expected from the fact that the directivity of the aperture increases as the physical area of the aperture increases.
Sign-in/Register to access full text options 
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.
