Symmetrical and asymmetrical partially shorted patch antennas are numerical
ly studied using the finite-difference time-domain method. It is observed t
hat the patch size of the asymmetrical partially shorted case can be reduce
d more than that of the symmetrical case, while the bandwidth of the former
is less than that of the latter. (C) 2001 John Wiley & Sons, Inc. Microwav
e Opt Technol Lett 28: 214-216, 2001.