Capacitive feeding for slotted microstrip patch

2011 XXXth URSI General Assembly and Scientific Symposium Pub Date : 2011-10-20 DOI:10.1109/URSIGASS.2011.6050300

Piyush Musale, S. Khobragade, V. Anitha

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引用次数: 9

Abstract

A Microstrip patch antenna having slotted sides with small capacitive feed has studied and discussed here. Slots on the proposed patch can be used to increase the bandwidth of antenna. It has observed that VSWR bandwidth nearly 45% can be easily achieved with the novel patch. A constant radiation pattern with improved bandwidth, for an operating frequency of 4.8 GHz can be easily achieved. Configuration of an antenna is easy to design. A very small feed strip is placed very close to the presented novel patch on the substrate above the ground plane. The given patch is act as radiating patch while feed strip couples the energy to radiating patch by capacitive mean. The model of antenna incorporates the capacitive feed strip which is fed by a coaxial probe by using equivalent approach. Effect of various parameters such as air gap between the substrate and the ground plane, probe diameter, the distance between the radiator patch and feed strip, and dimensions of the feed strip on the performance of the antenna has studied and there results has discussed here. A proposed patch can be used for various application in L-, S-, C- or X-band.

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开槽微带贴片电容馈电

本文研究和讨论了一种边沿开槽、电容馈电小的微带贴片天线。该贴片上的插槽可以用来增加天线的带宽。实验结果表明，采用这种新型贴片可以很容易地实现近45%的VSWR带宽。对于4.8 GHz的工作频率，可以很容易地实现具有改进带宽的恒定辐射模式。天线的结构易于设计。一个非常小的馈电条被放置在非常接近所提出的新贴片的基板上的接地平面以上。给定的贴片作为辐射贴片，馈线条通过电容平均将能量耦合到辐射贴片上。该天线模型采用等效方法引入电容馈电带，该馈电带由同轴探头馈电。本文研究了基片与地平面之间的气隙、探头直径、辐射片与馈电带之间的距离以及馈电带的尺寸等参数对天线性能的影响，并对结果进行了讨论。提出的贴片可用于L-， S-， C-或x波段的各种应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2011 XXXth URSI General Assembly and Scientific Symposium

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