Two coherent signals with different primary phases radiated by two orthogonal in-space linear polarization antenna elements form an elliptical polarization wave.
两个初相不同的相参信号由两个在空间上正交的线极化天线单元辐射，将形成椭圆极化波。
The primary function of the optical transmit antenna is to collimate far-field divergence of the laser beam and reduce the size of the laser beam in .
由于大气衰减的影响，非视线散射大气光通信需要使用光学天线以提高对光信号的采集能力，进而增加通信距离。
Primary experiments show that radiated energy can be transmitted more efficiently by sparse antenna array .
对布阵方式的初步实验表明， 适当的稀疏布阵可提高传输效率。
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