相對來說是輻射方向上更加狹窄，在某些方向上的輻射較為集中，故能量集中到

相對來說是輻射方向上更加狹窄，在某些方向上的輻射較為集中，故能量集中到某些方向上去了，故體現為某些方向上的增益。高增益天線和普通天線的區別，就是高增益天線增益高些，距離可以更遠，但犧牲了波瓣寬度；普通天線增益低些，距離近些，但波瓣寬度，也就是對四周覆蓋範圍大些。

Results (English) 1:

Is relatively more narrow radiation direction, the radiation in certain directions is more concentrated, and the energy is concentrated up to a certain direction, it is embodied as a gain in certain directions.
The difference between the ordinary high-gain antenna and the antenna, high-gain antenna gain is higher, the distance can be longer, but the expense of the lobe width; low antenna gain more general, recent distance, but the width of the lobe, i.e. on the surrounding coverage bigger.

Results (English) 2:

Relatively speaking, the radiation direction is more narrow, in some directions the radiation is more concentrated, so the energy concentrated in some directions, so it is reflected in some directions of gain.
The difference between a high-gain antenna and a normal antenna is that the high-gain antenna has a higher gain and can be farther, but at the expense of the flap width, while the normal antenna gains a lower, closer distance, but the lobe width is larger.

Results (English) 3:

Relatively speaking, the radiation direction is narrower, and the radiation in some directions is more concentrated, so the energy is concentrated in some directions, so it is reflected in the gain in some directions.
The difference between high gain antenna and common antenna is that the gain of high gain antenna is higher, the distance can be farther, but the lobe width is sacrificed; the gain of common antenna is lower, the distance is closer, but the lobe width, that is to say, the coverage area around is larger.