平面单极性天线可用来提供很高的的阻抗带宽特性，应用于目前或将来的宽带系统中。
The planar monopole antenna provides extremely high width impedance characteristics which has been proposed for modern and future wideband wireless applications.
借助时域有限差分法（FDTD）对微带宽缝天线的频率和带宽特性进行了分析讨论。
Wide slot microstrip antenna is analyzed by means of finite-difference time-domain(FDTD) method.
通过对耦合器各种损耗的分析计算，得出立体交叉分离型耦合器有最佳带宽特性的结论。
We reach the conclusion that grade seperation couplers have optimum bandwidth after calculating various insertion losses.
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