A time‐domain technique For determining antenna Q

A new time-domain technique for determining the radiation Q of an antenna is presented. The time integral of power returning to the antenna from the standing energy field upon source turn off is determined numerically, and is used as a measure of the peak standing energy for Q determination. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 21: 395–398, 1999.