Latest LMD wave Mini Beam for HF (Experiment)

2 years ago
21

This is an updated version on my last attempt at an HF LMD wave mini beam antenna system.

The previous version offered far too much of a high angle of radiation that refracted in all directions although it had good rejection to the immediate low angle rear,
which made it less of an advantage for typical Ham Radio Use.

This Version reduces high and low angles and also narrows the beam width in the horizontal axis.

Like the previous version this is using a Longitudinal Magneto Dielectric Wave (LMD)
as Opposed to a classic TEM wave...

This System is only effective by creating a high Q resonant state between the two magnetically adjustable Inductor systems with deliberately added distributed capacitance similar to the Tesla Bi-Filar Pancake coils.

I have made use of a UHF section from an OLD TV antenna to direct the changing E Fields away from the System
as this configuration also lends itself to adding distributed capacitance along the way.

I could design much better versions if I had the materials to build one as I can invision.

This is not a finished product,
just a little look at the progress I have made so far...

73 de Vk3fvki.

(The RF field strength meter used is a fully passive 50 uA meter that also has two LED's rigged across the circuit to illuminate when the power across the meter gets too high.)

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