用于认知无线电应用的频率选择可重构微带天线

IF 0.8 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Advanced Electromagnetics Pub Date : 2022-12-06 DOI:10.7716/aem.v11i4.1696
D. S. Aldar
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引用次数: 1

摘要

为了有效利用电磁无线电频谱,采用认知无线电通信系统来解决频谱稀缺的问题。有效的天线对于适当选择可用频率至关重要。本文介绍了一种用于认知无线电应用的频率可重构天线的设计与实现。设计并实现了50w微带线馈电的可重构倒u型微带贴片天线。设计实现的天线通过从指定的宽带中选择特定的子带,实现了3.25 GHz到4.1 GHz之间的频率切换。频率重新配置是通过将12个PIN二极管开关放置在天线的开槽接地面上来实现的。PIN二极管以这样一种方式组织,即改变天线带宽和移动操作频带。通过单片机控制PIN二极管的开关,选择合适的频率。采用不同的参数对模拟天线和制作天线的性能进行了研究。
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Frequency selective reconfigurable microstrip antenna for cognitive radio applications
For the efficient utilization of electromagnetic radio spectrum cognitive radio communication system is employed, which deals with the spectrum scarcity. An efficient antenna is essential for the appropriate selection of the available frequencies. This paper presents the design and implementation of frequency reconfigurable antenna for cognitive radio applications. Reconfigurable inverted U-shape microstrip patch antenna feeding by 50 W microstrip line is designed and implemented. The designed and implemented antenna applied for switching frequency between 3.25 GHz to 4.1 GHz by choosing a specific sub-band from the specified wideband.  The frequency reconfiguration was achieved by using twelve PIN diode switches by placing them on the slotted ground plane of the antenna. The PIN diodes were organized in such a way as to alter antenna bandwidth and to shift the operating band. The switching of PIN diodes controlled using the microcontroller to select the appropriate frequency. The performance of the simulated and fabricated antenna is investigated using different parameters.
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来源期刊
Advanced Electromagnetics
Advanced Electromagnetics ENGINEERING, ELECTRICAL & ELECTRONIC-
CiteScore
2.40
自引率
12.50%
发文量
33
审稿时长
10 weeks
期刊介绍: Advanced Electromagnetics, is electronic peer-reviewed open access journal that publishes original research articles as well as review articles in all areas of electromagnetic science and engineering. The aim of the journal is to become a premier open access source of high quality research that spans the entire broad field of electromagnetics from classic to quantum electrodynamics.
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