Circularly Polarized Printed Antenna Combining Slots and Patch
Circularly Polarized Printed Antenna Combining Slots and Patch
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DOI：
10.1093/ietcom/e90-b.3.621
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发表时间：
2007-03
期刊：
影响因子：
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通讯作者：
Toshimitsu Tanaka;T. Houzen;Masaharu Takahashi;K. Ito
中科院分区：
文献类型：
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作者：
Toshimitsu Tanaka;T. Houzen;Masaharu Takahashi;K. Ito
本文提出了一种将缝隙阵列天线和贴片天线相结合的双频圆极化印刷天线。该天线具有良好的隔离性能，结构紧凑，结构简单。该天线由两部分组成，分别为顶部的贴片天线（用于Rx）和底部的缝隙阵列天线（用于Tx）。元件布局使得下部辐射元件不被上部辐射元件隐藏，以获得宽的观察角度。因此，两个辐射元件都可以自然地辐射目标偏振。缝隙阵和贴片天线均采用电磁耦合微带线馈电。通过这样的配置，可以有效地获得两个频带的良好隔离特性。此外，该天线可以容易地构成，并且不需要使用任何馈电引脚或通孔。这种天线的目标是移动的通信应用，如移动的卫星通信，无线局域网的基站等，在这里，设计技术进行了讨论，并提出了数值和实验分析。
In this paper, the authors propose a circularly polarized printed antenna combining a slot array antenna and a patch antenna, with dual-band operation. The proposed antenna has good isolation performance, is compact, and has simple configuration. This antenna is composed of two parts, a patch antenna (for Rx) on the top, and a slot array antenna (for Tx) on the bottom, respectively. The element layout is such that the lower radiation element is not hidden by the upper one for wide observation angle. Hence, both radiation elements can naturally radiate the targeted polarization. Both slot array and patch antenna are fed by electromagnetically coupled microstrip line feed. With such a configuration, it is possible to efficiently obtain good isolation characteristics for both frequency bands. Furthermore, this antenna can be easily composed and it is not necessary to use any feeding pin or via hole. The target of this antenna is mobile communications applications such as mobile satellite communications, base-station of wireless LAN, etc. Here, the design techniques are discussed and the numerical and experimental analyses are presented.