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Pattern reconfigurable compact antenna

机译:方向图可重构紧凑型天线

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摘要

This paper presents a design of an compact antenna providing two diverse radiation patterns, which results from the excitation of two different modes. The antenna consists of a capacitively fed annular ring microstrip antenna, which can be shorted via shorting pins on its edges using pin diodes. Therefore, depending on the state of the pin diodes, the antenna operates in normal patch mode (TM11) or unipolar wire-patch mode. The resonance frequencies of both modes are nearly the same and they have overlapping 10 dB impedance bandwidths. In this design, only a single feed point is needed for both excitations. Detail design considerations are described. Simulated and experimental results are also presented and discussed.
机译:本文提出了一种紧凑型天线的设计,该天线可提供两种不同的辐射方向图,这是由两种不同模式的激发引起的。该天线由一个电容馈电的环形微带天线组成,可以通过使用引脚二极管将其边缘上的引脚短路来使其短路。因此,根据Pin二极管的状态,天线以正常的贴片模式(TM 11 )或单极线贴片模式工作。两种模式的谐振频率几乎相同,并且具有重叠的10 dB阻抗带宽。在这种设计中,两个激励都只需要一个馈电点。描述了详细设计注意事项。仿真和实验结果也被介绍和讨论。

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