Source: http://en.wikipedia.org/wiki/Cantenna http://en.wikipedia.org/wiki/Cantenna Quote: "The typical gain for this kind of antenna in the 2.4 GHz Wi-Fi band

Source: http://en.wikipedia.org/wiki/Cantenna http://en.wikipedia.org/wiki/Cantenna Quote: "The typical gain for this kind of antenna in the 2.4 GHz Wi-Fi band is about 10 dB." The gain over a baseline quarter-wave ground-plane antenna obviously comes from the device's directionality. So define "good design". If you mean an optimal design at any cost, of course not. If you mean clever use of readily available materials, it's a great design.