Electrically Small Resonant Planar Antennas
Electrically Small Resonant Planar Antennas
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DOI：
10.1109/map.2015.2437271
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发表时间：
2015-06-01
影响因子：
3.5
通讯作者：
Best, Steven R.
中科院分区：
文献类型：
--
作者：
Best, Steven R.
完全占据球形体积的电小天线的品质因数 (Q) 的基本限制（下界）由众所周知的 Chu 极限定义。最近，任意形状体积的小型天线的下界主题在文献中得到了相当多的关注。古斯塔夫森等人。是第一个提出任意体积天线 Q 值下界的人。更重要的是，他们详细介绍了最佳纵横比，以最小化完全占据圆柱形体积和平面区域的电小型天线的 Q 值。在之前的工作中，我们描述了几种电气细线天线设计，它们完全占据球形和圆柱形体积，并且阻抗匹配且高效，并且分别表现出最接近 Chu 极限和 Gustafsson 极限的 Q 值。
The fundamental limitation (lower bound) on the quality factor (Q) of an electrically small antenna that fully occupies a spherical volume is defined by the well-known Chu limit. More recently, the subject of lower bounds for small antennas of arbitrarily shaped volumes has been given considerable attention in the literature. Gustafsson et al. were the first to present lower bounds for the Q of antennas of arbitrary volume. More significantly, they presented details on the optimum aspect ratios for minimizing the Q of electrically small antennas that fully occupy cylindrical volumes and planar areas. In previous works, we have described several electrically small-wire antenna designs that fully occupy spherical and cylindrical volumes and that are impedance matched and efficient and exhibit Qs that most closely approach the Chu limit and the Gustafsson limit, respectively.