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首页> 外文期刊>Antennas and Propagation, IEEE Transactions on >Miniaturized Reconfigurable Multiband Antenna For Multiradio Wireless Communication
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Miniaturized Reconfigurable Multiband Antenna For Multiradio Wireless Communication

机译：用于多无线电无线通信的小型化可重构多频带天线

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摘要

This paper introduces a general methodical approach for designing frequency reconfigurable antennas. This method was successfully used to design a novel coplanar waveguide (CPW)-fed slot frequency reconfigurable antenna capable of operating at four preselected frequency bands distributed over a wide frequency range from ~ 59.5 MHz to ~ 1000 MHz (i.e., ~ 4 octaves of bandwidth) while keeping its overall size as small as possible. To add reconfigurablility to the antenna, optimally-designed and electronically-controllable PIN diode-loaded slots were used to strategically manipulate the flow of current path and consequently change the characteristics of the antenna. Designing for the lowest operating frequency (59.5 MHz), capacitor-loaded meandered slot lines and reconfigurable matching network were implemented to keep the size of the antenna as small as possible. The resulting overall size of the antenna is only 0.06λL×0.06λL where λL is calculated at 59.5 MHz. The measurement results verified that the antenna successfully operates at 59.25-59.75 MHz, 314-398 MHz, 430-496 MHz, and 792-950 MHz, all with an almost omnidirectional pattern and an acceptable gain.
机译：本文介绍了一种设计频率可重构天线的通用方法。此方法已成功用于设计一种新颖的共面波导（CPW）馈送的缝隙频率可重构天线，该天线能够在分布于〜59.5 MHz至〜1000 MHz的宽频率范围内的四个预选频段上工作（即，带宽约为4个八度） ），同时保持其尽可能小的尺寸。为了增加天线的可重新配置性，使用了经过优化设计和电控PIN二极管加载的插槽，以策略性地控制电流路径，从而改变了天线的特性。为了实现最低工作频率（59.5 MHz）的设计，实施了电容器加载的曲折缝隙线和可重构匹配网络，以使天线尺寸尽可能小。天线的总尺寸仅为0.06λL×0.06λL，其中λL在59.5 MHz处计算得出。测量结果验证了该天线在59.25-59.75 MHz，314-398 MHz，430-496 MHz和792-950 MHz频率下均能成功工作，并且几乎都具有全向方向性和可接受的增益。

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