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Asymmetrical Trap Dipole Antenna

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Asymmetrical Trap Dipole Antenna: by: Roman Sergeev (RA9QCE)

Ham knows and widely used to the Symmetrical Trap Dipole Antennas. Classical example of such antenna is W3DZZ antenna. At my opinion such antennas has just one benefit- patterns of the antennas are almost the same at the different bands. However, the antennas have lots disadvantages. There are heavy weight, complexity in design, large enough windage, the narrow bandwidth at the lower bands, high SWR at some bands.


Asymmetrical Dipole Antennas (that are used by hams) are free from some of lacks of the Symmetrical Trap Dipole Antennas. However the main lack of the Asymmetrical Dipole Antennas is the main lobe of the diagram directivity at lower bands is toward to main lobes at the other upper bands.


An antenna that is almost free from the disadvantages was design by me by combination of these two types of antennas- Symmetrical Dipole Antennas and Asymmetrical Dipole Antennas. I called the new one prototype "Asymmetrical Trap Dipole Antenna."


PDF file, 110 KB (ANTENTOP-01-2011, pp: 38- 39)

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Last Updated:

March 29, 2016 9:34

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