Chip - "cooking " is right ! We're "reflecting" on a small front
screen to enhance illumination in fact. Of course mesh parabolas
typically only have 80% of the gain of a solid dish, but extensive
field trials have verified ~15dB for the 300mm (12") mesh scoop at
2.4GHz, & ~10dB for a 170mm at the same freq.At say 1800MHz cellular
freqs, gain only perhaps 2/3rd this =10dB for 12"?

Ref numerous pix & lab. notes = www.usbwifi.orcon.net.nz to support
things

Stan ( ZL2AJZ)