Discuss commercial and home made antennas.
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Jekko
- Posts: 16
- Joined: Wed Oct 17, 2018 9:39 am
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by Jekko » Mon Nov 05, 2018 12:09 pm
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!
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HighSNR
- Posts: 26
- Joined: Mon Sep 18, 2017 8:14 am
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by HighSNR » Wed Nov 07, 2018 7:55 am
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.