Design radar absorbing materials (RAM). Design efficient radomes to protect and hide the antenna. Study the effect of the environment on the antenna performance, especially the ground. Study the effect of material and dimension on the antenna and field parameters. Account for both dielectric and conductor losses. Study the effect of radomes on the antenna parameters. Optimize the noise rejection of a receiving antenna. Respect the power rating of a transmitting antenna to avoid sparking and arcing. Achieve a good matching over a frequency range. Maximize the ratio of the radiation resistance to ohmic resistance of an antenna. Sample EZNEC Files The unofficial Numerical Electromagnetic Code (NEC) Archives Additional information not found in the NEC-2 manuals. Author no longer provides support as he has retired. Compute the resonant frequency of an antenna. Includes free Mininec based Antenna Analyzer EZNEC Antenna Software by W7EL EZNEC 7.0 is now a free download. Obtain the radiation pattern of any antenna over a frequency range. 
Obtain the vector frequency response of arbitrary 3D antenna structures. 
If you find mistakes in this book, they are all mine. 4NEC2 is a NEC based antenna modeler and optimizer developed by Arie Voors.This is a 3 rd party book and is not connected to Arie Voors in any way.
This antenna software module also helps you validate existing antenna designs and study a plethora of antenna design issues, including: Thanks for downloading and reading this Definitive Guide to the widely popular 4NEC2 Antenna Modeling software. The antenna design module of HFWorks helps you optimize your antenna design by simulating various “what if” scenarios to meet the stringent requirements imposed by the Internet of Things and the 5G mobile technologies.
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