With a little bit effort we can built an antenna with some gain;
The single “QUAD” element loop antenna.
The length of the wire is a full-wave.
Different shapes and ipedances with a single loop are possible :
We are going to make the 50 ohm variant, ” B”
Sizes are B= 3822mm and a= 1910mm.
It’s a bigger antenna but good results, about 2 dB more gain then a dipole.
Although it looks like a vertical loop, the antenna has a horizontal polarization.
It could be build like a quad or a moxon with fishing rods. Wire 1,5mm, sizes:
Total length wire: 11.464mm
Below you see the SWR, workable from 27,2 till 27,9 MHz.
Less band width then a dipole.