以下为句子列表：
英文: An omnidirectional ultra-wideband monopole antenna, with the characteristics of simple structure, easy fabrication and low cost, mainly comprises a ground plane, a U-shaped radiating member above the ground plane and a feeding member.
中文: 一种可提供超宽频操作频带之全向性超宽频单极天线，其具有结构简单、制作简单以及成本低廉的特性。
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英文: As we saw in Figure 11.7, when an HF Signal flows in a PC track running over a ground plane the arrangement functions as a microstrip transmission line and the majority of the return current flows in the ground plane underneath the line.
中文: 如图11.7，高频信号伴行地线传输时，可以将其视为“微带线”，这时大部分返回电流都会从信号线下方的地线流过。
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英文: In this case components should be mounted on a board having a continuous copper ground plane (ideally on both sides of the board, though while convenient this is not essential), with ground connections made to the plane and short point to point wiring mad
中文: 用于搭试的电路板最好有连续的地层（如果双面都有地层就更理想了，虽然调试起来会不太方便），这样接地的导线和层间连接线都会比较短。
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