Open AccessAnalytic transient analysis of radiation from hyperboloid reflector antennas via surface curvature continuation of ellipsoidal surfaces
Author(s) -
Chou H.T.,
Tuan S.C.
Publication year - 2013
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2012.4409
Subject(s) - hyperboloid , reflector (photography) , paraboloid , optics , ellipsoid , periscope antenna , diffraction , curvature , antenna (radio) , uniform theory of diffraction , radiation pattern , physics , surface (topology) , cassegrain antenna , fan beam antenna , offset dish antenna , scattering , geometry , mathematics , computer science , telecommunications , light source , astronomy
A transient analysis of a hyperbolic reflector antenna is performed based on a mathematic continuation of surface curvatures of an ellipsoidal reflector antenna with the analysis previously performed. This work makes the time‐domain analysis useful for the design of reflector antennas since both ellipsoidal and hyperbolic reflectors are widely used as sub‐reflectors for dual‐reflector antenna system. In particular, this work interprets the scattering phenomena in terms of reflected and diffracted fields with respect to the frameworks of geometrical theories of diffraction, and allows one to analyse the reflector based on the local scattering mechanism.