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Meet my new DIY planar disk antenna



I kept 2 millimeters of GAP and the dishes are 46cm diameter.

Unfortunately i don't have any hardware to measure the performances of the antenna, but it seems to work quite good, especially in the 400mhz band.

Bye all!

Nice build!

That should work well. You basically have two radiation modes. These modes should seemlessles transistion between each other.

1st is a fat dipole that will cover the lower bands. Lower frequency will be dictated by the total height of the antenna(lambda/2)

2nd is like a Vivaldi antenna that will give more gain in the plane of the disk. It will be more directional at higher frequencies. I expect the upper frequency to be above 6ghz.