求外文文献2篇: reflector the sharp optimiztion for the FB ratio of the dipole ANTENNA.pdf

1.reflector sharp optimiztion for FB ratio of dipole antenna，Proceedings of APMC2001,DEC.2001,PP.1068~1071

2 Enhancement of FB ratio for celluar base station antenna by optimizing reflector sharp, IEEE Ap-s international symposwm digest

Good luck.