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The advantage of a voltage unun is its ability to easily match impedances, unlike a current un-un, which uses an isolation transformer to balance its input and output current, but suffers from impedance matching ability.
An 80-10 end-fed half-wave antenna can be a very good performing part of an HF station. But its performance depends heavily on a well-designed and carefully constructed 49:1 unun, which matches the long wire impedance to within tuning range of operation. But the perfor-mance of an end-fed antenna is also very dependent on height above ground.
MMANA-GAL is an antenna-analyzing tool based on the moment method, which was introduced in MININEC version 3. The BASIC source code of the computation engine is published as a PDS in MININEC. The program use the MININEC-3 engine modified by Alexandre Schewelew, DL1PBD, and are written in C++.
Antenna software becomes useful when you are tired of the "cut and try" method. Here is antenna design software to meet your needs.
4nec2 is a completely free Nec2, Nec4 and windows based tool for creating, viewing, optimizing and checking 2D and 3D style antenna geometry structures and generate, display and/or compare near/far-field radiation patterns for both the starting and experienced antenna modeler.
DIY. Worthwhile projects you can build on your own. The inverted-L Rybakov 806 antenna. The what? I’ve been looking for a good inverted-L antenna design that I could build, and hap-pened upon this version, which seems to have not only operator testimonials but technical data to support them.
16 paź 2021 · We’ve collected a list of open source antenna design software that can help you design, simulate, optimize, tune, and manufacture your next antenna. So let’s get to it! Circuit Schematic, Layout, and Circuit Simulation
