Is the bigger the wireles間坐s router dBi, the better電農? At present, common wireless router如電s can be learned by checkin暗公g the parameters, and most of them are業高 3dBi, 5dBi or 7dBi. F信湖or users, is this value the喝慢 larger the better, or the s秒黑maller the better?

This problem can be understood話紙 by looking at the diagram of the nex聽木t antenna gain.

The higher the DBI va美市lue, the greater the gain, the sm厭慢aller the vertical angle, a花都nd the longer the transm得舞ission distance, but t拿生he smaller the short-distance tr朋頻ansmission area, the smaller the DBI 冷明value, the farther th計店e vertical angle, and t外討he larger the short-distanc還工e radiation area. At present, 了低common wireless routers 花生on the market generally have antenn業爸a gain values ​​of 3dBi and 5dBi市姐, while some of the main wall-through說慢 router antenna gains use劇票 7dBi gain wireless an月藍tennas.

For ordinary users, when th從玩e home area is not large, the gain of 3都那-5dBi is conducive to signal 地務reception. Although 不長the larger the router antenna, th她時e stronger the wall penetration abili工愛ty, but the exclusive area is likely他拍 to become a blind spot.下懂 Such routers often req時數uire more router antennas to solve th近東e signal coverage proble見新m, and the product pr謝場ice is very high.