The physical optics fields of an aperture on a perfectly conducting screen in terms of line integrals

Near-field line-integral representation of the Kirchhoff-type aperture radiation for a parabolic reflector

“…Using the characteristic function which is unity for and zero for , we can rewrite (4) in a compact form for the electric and magnetic field as (5) Equation (5) provides an alternative exact representation of the aperture field , with the advantage that the field can be exactly represented as a line integral along the contour , as proved next. The electric field radiated by the lateral surface is given by (6) where is the distance between the integration point along the strip and the observation point .…”

“…A modern applicationoriented reformulation of the surface-to-line integral reduction is due to Asvestas [5]; his technique was generalized in [6] to PO scattering from a perfectly conducting flat face. The procedure presented here while specializing with a simplified formulation the work presented in [4] to the case of reflector antennas, leads to an interesting generalization to nonuniform aperture fields.…”

Fast Gaussian beam technique for the analysis of composite horn‐reflector antenna systems

“…The first achievements in this direction are due to Maggi [1] and Asvestas [2], while a very recent contribution can be found in [3].…”

“…Dispersion compensating fibers (DCFs) and linearly chirped fiber Bragg gratings (CFBGs) have been successfully used to provide dispersion compensation for systems in order to transmit much longer distance without electronic repeaters. However, DCF has high loss because its field is mismatched with SMF, high nonlinearity because of its small core diameter, and high polarization-mode dispersion (PMD) because of its complex waveguide structure [1][2][3][4]. DCF can only completely compensate one channel of wavelength-division multiplexer (WDM) dispersion [3,4], and rudimental dispersion seriously limits the transmissive distance without an electronic repeater.…”

“…The CFBG is completely compatible with single-mode fiber (SMF), it has small volume, low inset loss, and insensitive polarization, and it can filter the ASE of EDFA and easily compensate all channel dispersion in DWDM system [3,4]. Also, it can compensate rudimental dispersion after DCF compensation [5] and compensate fixed and variable dispersion [1][2][3][4][5].…”