Novel design for fractal antenna (not snowflakes) - for radio astronomy.

[joabel1971]

In regards to wrapping patent 512,340 (interleaved coil) into a cone shape - the outcome isn't a cone antenna with 1 wirelength resonance. It's a condensed array of loop antennas - each having it's own wirelength resonance.

1. Due to the capacitance between the two wires - each wrap is isolated from the next - causing an array of loop antennas covering a wide band of resonant wavelengths.

2. Also, by setting the cone base circumference equal to the slant height - you get a constant base angle, irregardless of the height.

That also means that all wavelengths streaming from each loop antenna will meet at a common point (apex) of the cone shape. So, by putting a near-field sensor at that point - you will potentially get resonant signals. SDRs, VNAs, and Spectrum analayzers are very good at sorting through a wide band of frequencies - and SDRs can be programed to combine "like" frequencies.

3. I figured out a few years ago - that series of 1/2, 1/4, 1/8, 1/16-wave, etc. - began to constructively interfere at a phase of 3/2*pi.
SDRs can add that phase to any of their IQ data.

4. So, do you want an easy way to build a fractal antenna - without bending snowflake figures? Start with Patent 512,340, wrap it on a cone with slant height = base circumference, and realize that it is a series of loop antennas with individual resonant frequencies. My HamGeek B220mini is really useful for this work, and A.I. seems to be good at writing python scripts for it.

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