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选择天线时主要考虑天线的电性能与机械性能两方面。电性能主要考虑天线的效率。相同口径的天线,如果其效率不同,则接收效果可能大不相同。选择效率高的天线,可以在保证其增益满足设计要求的前提下,减小口径,从而减小天线的体积。机械性能主要考虑天线的抗风能力。机械结构合理的天线,其机械强度大、不易变形,一经安装
The main consideration when choosing an antenna is both the electrical and mechanical properties of the antenna. The main consideration of the electrical performance of the antenna efficiency. The same aperture of the antenna, if its efficiency is different, the receiving effect may be very different. Choose the antenna with high efficiency, can reduce the caliber under the premise of guaranteeing its gain meets the design requirement, thus reduce the volume of the aerial. The main consideration of mechanical properties of the antenna wind resistance. Reasonable mechanical structure of the antenna, its mechanical strength, not easy to deformation, once installed