MMANA Antenna Modeling Program Tutorial, Part 1 A step-by-step inverted-coat-hanger antenna MMANA modeling program design example M MANA is a powerful antenna modeling program that is fascinating to experiment with. Lingvosoft Dictionary Software English <-> Italian For Microsoft Smartphone. Gran Turismo 4 Pc. It can model a wide range of antenna types, calculate radiation patterns, power gains, front-to-back ratios, feed impedances, bandwidths, the effects of loading inductors, capacitors and resistors, the effects of resonant traps, the effects of some types of transmission lines, and other things of interest to anyone interested in antennas. However, there are important issues that can totally invalidate results, there are some annoying software bugs to avoid, many program capabilities are not immediately obvious, and the documentation is limited. All that combines to leave many first-time-users wondering how to begin, and if they do begin, wondering whether the results they obtain are valid.
If that is your situation, this step-by-step inverted-coat-hanger antenna design example won't teach you everything there is to know about MMANA, but it will get you started, and probably will get you hooked. Warning Be forewarned that it won't take you long to learn the basics so you can start modeling your own antennas, but it may be days, weeks or months, before you 'surface for air,' because it seems the results from every new antenna design raise more questions you won't be able to resist exploring. How much wider will the bandwidth be with 12 AWG rather than 14 AWG wire? Will the feed impedance match the feedline better if the antenna is raised slightly higher? If the feed impedance changes, how will that affect the bandwidth?