Reconfigurable tapered slot antenna for wireless applications

2011 6th International Conference on Industrial and Information Systems Pub Date : 2011-10-10 DOI:10.1109/ICIINFS.2011.6038034

H. Sharma, Mithilesh Kumar, G. Parmar

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Abstract

A tapered slot antenna with added switched band functionality to operate in a wideband or narrowband mode is proposed for wireless applications. The antenna reconfiguration is realized by inserting one pair of switchable square slots into the structure. For switching purpose, PIN diodes are used. The antenna is designed on FR4 substrate that has dielectric constant of 4.9 and the height of the substrate is 1.6 mm. The size of antenna substrate is 72 mm × 70 mm. The structure is simulated on electromagnetic (EM) simulation software. The designed antenna operates over impedance bandwidth (1.9 to 7.5 GHz) for return loss S11 < −10 dB when both diodes are in OFF state and impedance bandwidth (7.0 to 8.5 GHz) for return loss S11 < −10 dB when both diodes are in ON state. The wideband to narrowband frequency reconfigurable can be achieved by switching the diodes in OFF and ON conditions. The proposed antenna performance could be a suitable solution for multimode application requiring wideband and frequency reconfigurable antennas, such as in military applications and cognitive radio.

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用于无线应用的可重构锥形槽天线

提出了一种具有附加开关带功能的锥形槽天线，可在宽带或窄带模式下工作，用于无线应用。天线重构是通过在结构中插入一对可切换的方槽来实现的。对于开关目的，使用PIN二极管。天线设计在介电常数为4.9，基板高度为1.6 mm的FR4基板上。天线基板尺寸为72mm × 70mm。利用电磁仿真软件对结构进行了仿真。设计的天线工作在两个二极管都处于OFF状态时，回波损耗S11 <−10 dB的阻抗带宽(1.9 ~ 7.5 GHz)和两个二极管都处于ON状态时，回波损耗S11 <−10 dB的阻抗带宽(7.0 ~ 8.5 GHz)上。宽带到窄带的频率可重构可以通过开关二极管在OFF和ON条件下实现。所提出的天线性能可以为需要宽带和频率可重构天线的多模应用提供合适的解决方案，例如军事应用和认知无线电。

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 6th International Conference on Industrial and Information Systems

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