TY - JOUR
A2 - Björninen, Toni
AU - Zhang, Shuxin
AU - Yang, Guigeng
AU - Zhang, Yiqun
PY - 2016
DA - 2016/07/25
TI - An Approximation Mathematical Formula of Pattern Analysis for Distorted Reflector Antennas considering Surface Normal Vector Variation
SP - 4824873
VL - 2016
AB - An approximation mathematical formula to compute the distorted radiation pattern for reflector antennas is presented. In this approximation formula, besides the phase error caused by the structural deformation being added in the far field integral, the surface normal vector variation is also taken into consideration. The formula is derived by expanding the surface normal vector into a first-order Taylor series and the phase error into a second-order Taylor series. By assembling the integrals including the contributions of both surface normal vector variation and phase error, the far field electrical vector expressed as a function of structural nodal displacements is further obtained in a matrix form. Simulation results of a distorted reflector show the application of this formula.
SN - 1687-5869
UR - https://doi.org/10.1155/2016/4824873
DO - 10.1155/2016/4824873
JF - International Journal of Antennas and Propagation
PB - Hindawi Publishing Corporation
KW -
ER -