Stored Energies and Radiation Q
This paper discusses the methods for evaluating the stored electromagnetic energies and the radiation Q for an arbi-trary lossless antenna.New expressions for the stored electromag-netic energies are derived by using the Poynting theorem in the complex frequency domain,and they are compared with previous theory and are validated by numerical examples.The minimiza-tion of radiation Q for small antenna is also investigated.There exists an optimal current distribution that minimizes the radia-tion Q for specified small antenna geometry.The optimized Q and the optimal current distribution for small antenna may be deter-mined by solving a generalized eigenvalue equation obtained from the Rayleigh quotient for the radiation Q.
Antenna Q antenna theory stored energy
Wen Geyi
Research Center of Applied Electromagnetics,Nan-jing University of Information Science and Technology,Nanjing,210044,China
国际会议
深圳
英文
165-174
2021-12-01（万方平台首次上网日期，不代表论文的发表时间）