Very Cheap Dipole feeders – they are easy to be build and you do not need a lot or expensive materials. Everything here can be made from wire or scrap /I watch too much scarpwars on Discovery channel π /
I found some very interesting looking feeders for dishes – VERY cheap to make, first is made only from feeder line π or simple coax.
http://patraswireless.net/antennas.html
“A simple dipole feed. Good solution to illuminate parabolic constructions (solid, grid etc.) Heliax holds the dipole, as well as feeds the N-type female connector to the back. Tests shown 4 dBi (against Lucent 24 dBi parabolic grid). “
Second is Russian of course http://www.hub.ru/forum/index.php?showtopic=16285
Name of the file is interesting too D_Linc3_008.jpg
Interesting materials – onli several pieces of pcb board are used – very good.
From the same forum are these too –
Last pic is from http://martybugs.net/wireless/conifermods2.cgi
And for the end howto make wire reflector or DIY Parabolic Grid Reflector
Info is from this : http://www.zero13wireless.net/foro/showthread.php?t=248
19dbi gird blueprint :
For me is easy to buy small offset dish – 80cm is around 10 to 15 Euros here.