Enhancing UHF antenna functionality through dielectric inclusions and texturization
Enhancing UHF antenna functionality through dielectric inclusions and texturization
复制标题
通过电介质夹杂物和纹理化增强 UHF 天线功能
DOI：
--
复制
发表时间：
2006
影响因子：
5.7
通讯作者：
J. Halloran
中科院分区：
文献类型：
--
作者：
D. Psychoudakis;J. Volakis;Z. Wing;S. Pillai;J. Halloran
天线设计中使用电介质来支撑印刷结构并减少天线谐振和尺寸。然而，据我们所知，设计过程中尚未使用电介质体积（通过修改或纹理化电介质）来可能改变天线的整体性能和行为。在本文中，我们从给定的金属几何形状开始，展示了如何利用介电负载（位置和介电常数值）的变化来生产具有宽带和多频带特性的各种天线配置，同时仍然追求尺寸减小。更具体地说，使用 15 cm/spl times/15 cm/spl times/6 cm 天线几何形状，我们展示了各种设计，其谐振频率低至 350 MHz（0.175/spl lambda//sub 0/线性尺寸），并且在 520 MHz 时带宽可高达 23.5%（0.261/spl lambda//sub 0/线性尺寸）。还显示了具有双频带特性的设计。制造并测量了一个示例宽带设计。
Dielectrics are used in antenna design to support the printed structure and to also reduce antenna resonance and size. However, to our knowledge, dielectric volumes have not been used in the design process (by modifying or texturizing the dielectric) to possibly alter the overall performance and behavior of the antenna. In this paper, we begin with a given metallic geometry and show how changes in dielectric loading (position and permittivity values) can be used to produce a variety of antenna configurations having broadband and multi-band characteristics while still pursuing size reduction. More specifically, using a 15 cm/spl times/15 cm/spl times/6 cm antenna geometry, we show various designs giving resonant frequencies down to 350 MHz (0.175/spl lambda//sub 0/ linear dimension) and having bandwidths that can reach as high as 23.5% at 520 MHz (0.261/spl lambda//sub 0/ linear dimension). Also shown are designs with dual band characteristics. An example broadband design is fabricated and measured.