适当的阻抗加载能有效降低天线rcs，同时还能保证天线的辐射性能。
Proper impedance load can reduce RCS effectively, meanwhile antenna's gain and radiation efficiency are not affected.
在平面单极子天线的末端采用蛇形结构，并在适当的位置加载，将大大减小天线尺寸，扩展阻抗带宽。
Using snake structure at the end of the planar monopole and adding load at proper position can decrease the size greatly and broaden the impedance bandwidth.
本文研究阻抗加载对雷达目标微波成像的影响。
The effects of impedance loading on microwave imaging of radar target are investigated.
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