Analysis of TP-LINK821N wireless network card dismounting

A few days ago, the company wanted to buy a wireless network card. I thought the boss didn't set a budget, so I would like to buy a better one. This is selected in the result. 650) this. width = 650; "onclick = 'window. open (" http://blog.51cto.com/viewpic.php? Refimg = "+ this. src) 'height = "338" src = "http://www.bkjia.com/uploads/allimg/131227/03295254C-0.jpg" width = "450" align = "center" border = "0"/> was originally a DWA-133 for preparing to buy DLINK. Unfortunately, the seller says it is out of stock. I know that 133 is too cheap to sell, and there is no profit. 650) this. width = 650; "onclick = 'window. open (" http://blog.51cto.com/viewpic.php? Refimg = "+ this. src) 'src =" http://www.bkjia.com/uploads/allimg/131227/0329523J5-1.gif "align =" top "/> TP-Link TL-WN821N wireless NICs look pretty, white look and implicit indicator are stylish. It has a shape of 93.5mm x 26mm x 11mm. The wireless network adapter complies with the IEEE 802.11 nDraft 2.0 standard. It adopts MIMO technology and has two built-in smart antennas to provide better wireless transmission performance, stability, and wireless coverage. At the same time, using the CCA technology can automatically avoid channel interference and take full advantage of channel bundling.
I'm interested in this dual-built antenna, so I took this guy apart and looked at the internal structure. 650) this. width = 650; "onclick = 'window. open (" http://blog.51cto.com/viewpic.php?refimg= "+ This. src) 'alt =" "src =" http://www.bkjia.com/uploads/allimg/131227/032952Ea-2.jpg "Border =" 0 "/> you can see the circle on a circuit board on the left, that is, the antenna ..... It uses the chip of the Atheros. The circuit board is very simple. This is the third edition of the circuit board. The chips used in the past are different. At the same time, the chip will not cover the case. Pay attention to the silver circle on the circuit board, which is used to stamp the iron case. 650) this. width = 650; "onclick = 'window. open (" http://blog.51cto.com/viewpic.php?refimg= "+ This. src) 'alt =" "src =" http://www.bkjia.com/uploads/allimg/131227/0329522427-3.jpg "Border =" 0 "/> This is the opposite antenna .. There is an antenna on both the front and back sides. 650) this. width = 650; "onclick = 'window. open (" http://blog.51cto.com/viewpic.php?refimg= "+ This. src) 'alt =" "src =" http://www.bkjia.com/uploads/allimg/131227/0329521328-4.jpg "Border =" 0 "/> This is its white plastic shell, and the white plastic sheet on the top is used for astigmatism. There is a signal light on the circuit board, with this transparent white plastic block, will not be blinking. 650) this. width = 650; "onclick = 'window. open (" http://blog.51cto.com/viewpic.php?refimg= "+ This. src) 'alt =" "src =" http://www.bkjia.com/uploads/allimg/131227/0329525102-5.jpg "Border =" 0 "/> 802.11n is used for pairing buttons, which are also called WPS and QSS. The technology is different, but the implementation principle is the same. 650) this. width = 650; "onclick = 'window. open (" http://blog.51cto.com/viewpic.php?refimg= "+ This. src) 'alt =" "src =" http://www.bkjia.com/uploads/allimg/131227/0329523353-6.jpg "Border =" 0 "/> the front-end chip AR9287, which uses a dual-chip solution, can also be found in the driver. 650) this. width = 650; "onclick = 'window. open (" http://blog.51cto.com/viewpic.php?refimg= "+ This. src) 'alt =" "src =" http://www.bkjia.com/uploads/allimg/131227/0329521A5-7.jpg "Border =" 0 "/> AR7010 is the opposite chip. Two articles are recommended. Also said this tplink-821n, But he split is the 2.1 version, I this is the third edition, I feel a little cut-off, does not support BT4, and modify the SMA interface antenna .. http://bbs.mydigit.cn/read.php?tid=170082 Virgins !!! TP-LINK 821N wireless network card dismantling, "a lot of everyone! http://www.wlanbbs.com/viewthread.php?tid=113882&highlight=%2B114984959-----TP-LINK WN821N change SMA stabilization process ----- This requires registration)

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