A feed network for the selective excitation of specific characteristic modes on small terminals
A feed network for the selective excitation of specific characteristic modes on small terminals
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DOI：
10.1109/eucap.2012.6205813
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发表时间：
2012-03
期刊：
影响因子：
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通讯作者：
R. Martens;D. Manteuffel
中科院分区：
文献类型：
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作者：
R. Martens;D. Manteuffel
我们研究了不同的策略来实现一组ICE（电感耦合元件）的馈电网络上的一个小终端的特征模式的选择性激发。通过在端子的PCB（印刷电路板）中嵌入小矩形回路来实现感应激励。由于ICE的小尺寸，元件的输入阻抗是高电抗的。因此，需要额外的匹配网络。研究了集总元件与分布式传输线的折衷以匹配和联合收割机每组耦合器的元件。获得的一个重要结果是，与具有集总SMD（表面安装器件）组件的馈电网络相比，具有双短截线调谐的馈电网络在整个天线系统的效率方面具有优势。
We investigate different strategies to realize a feed network for a set of ICEs (Inductive Coupling Elements) on a small terminal for the selective excitation of characteristic modes. The inductive excitation is realized by embedding small rectangular loops into the PCB (Printed Circuit Board) of the terminal. Due to the small dimensions of the ICEs the input impedance of the elements is highly reactive. Therefore, additional matching networks are required. The trade-offs of lumped elements versus distributed transmission lines to match and combine the elements of each set of couplers are investigated. An important result obtained is that the feed network with double-stub tuning offers advantages compared to the feed network with lumped SMD (Surface Mountable Device) components with respect to the efficiency of the entire antenna systems.