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由微带型天线和背射腔组合成的微带背射天线能提供的增益超过单个微带元的三倍,因此,它能代替普通的四元或四元以上微带天线阵。由于微带背射天线是由位于总反射器与局部反射器之间的腔体内的微带幅射元组成的,因此,可以利用电磁波在这两个反射之间进行的多次反射以及能量通过局部反射器并朝着其法线方向幅射来表示这种天线的特征。
The microstrip antenna, combined with the back-illuminated cavity, provides more than three times the gain of a single microstrip patch antenna, so it can replace the usual four or more-element microstrip antenna array. Because the microstrip back-illuminated antenna is made up of microstrip radiators located in the cavity between the total and local reflectors, multiple reflections of electromagnetic waves between these two reflections and the passage of energy can be utilized Local reflectors radiate toward their normal to represent the characteristics of this antenna.