Simple can antenna for ADS-B 1090MHz reception

Here is a simple and easy to build antenna for ADS-B reception at 1090MHz:

Antenna measurement setup. Return loss -28dB @ 1090MHz.

What you need:
1x Aluminium can, length/height 69mm, outer diameter 44mm (mine was a spice can, Knorr/Unilever Aromat, EAN 40387444)
1x Brass pipe, 200mm length, outer diameter 2mm, inner diameter 1mm
1x SMA panel mount socket with front side nut

How to build:

Cut the can to 69mm length. (Quarter wave length of 1090MHz)

Drill a 6mm hole center bottom.

Solder the brass pipe to SMA socket center pin.

Feed point. Brass pipe soldered to SMA center pin.

Cut the brass pipe length exactly to 194mm (see picture).

Mount SMA socket in previously drilled center hole in can.

That's all.

The antenna has a fairly broad resonance, accepts therefore some mechanical tolerances.

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