USB WiFi devices and wifi antenna are sorta so-so because the Ethernet WiFi devices can be used at the end of a really long cable, where you are limited with length using USB. You also can use Ethernet WiFi devices when connected to networks (Between routers, or joining networks with one router and multiple access points and multiple switches.
Fortunately there are a few models that seem to have pretty decent WiFi hardware, including the Minix Neo G4. But if you have your heart set on a different model — or already have one, it turns out it’s possible to improve WiFi reception by building your own antenna. ArmTvTech forum members MaVe_64 and Dero have independently come up with pretty much the same solutions for their MK808 mini PCs. In a nutshell, it involves opening up the case, removing the antenna, and attaching a 12 cm piece of wire to act as an external antenna.
The process involves use of a soldering iron — and if you don’t know what you’re doing you could damage your wifi panel antenna. But part of the appeal of these Android TV sticks is that they’re so cheap you might not mind if you break one in the name of science. For example, you can pick up an MK808 Android box featuring an RK3066 dual core CPU, 1GB of RAM, and 8GB of storage for under $50. This sort of modification might also work on some other models, but any time you start taking a soldering iron to the inside of a computer (whether it costs $50 or $5000), you should proceed with caution.
www.chinaantennas.com has the longest history of manufacturing antenna and antenna accessories in China. It has 25-year experience in this area.Foshan Yingjie Communication Equipment Co., Ltd. concentrates on researching, designing, producing and selling indoor and outdoor antennas including wifi antenna, LTE antenna, dual band antenna, VHF antenna, etc. It was founded in 1989 and now it is one of the famous communication antenna designers, manufacturers and solution suppliers in Asia.
The article is come from:http://www.mobilesaccessories.net/index.php/improve-wifi-performance-with-a-diy-antenna.htm
More about my article, you also can read:http://industrialgoods.blog.fc2blog.net/