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Reconfigurable wideband patch antenna for cognitive radio

机译:用于认知无线电的可重构宽带贴片天线

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Cognitive radio communication is envisaged to be a new paradigm of methodologies for enhancing the performance of radio communication systems through the efficient utilization of radio spectrum. A key enabler for realization of a cognitive communication system is the capability of re-configurability in the underlying hardware and the associated protocol suite. Reconfigurable double C-slot microstrip patch antenna fed by 50 ¿ microstrip line is proposed in this paper. The frequency tuning is performed by switching on and off two patches. The antenna can operate in dual-band or in very wide band mode in 5, 6 and 7 GHz bands. The wide-band mode can be obtained when both switches are in the ON state with impedance bandwidth of 33.52 % from 4.99 to 7 GHz. The total size of the ground plane is 50 × 50 mm2. The proposed antenna verified through both numerical simulation and measurement of an experimental prototype. The antenna achieves a gain of 5 to 8 dBi and radiation efficiency about 80%.
机译:认知无线电通信被认为是通过有效利用无线电频谱来增强无线电通信系统性能的新方法论范式。实现认知通信系统的关键因素是底层硬件和相关协议套件中的可重新配置能力。本文提出了由50μs微带线馈电的可重配置双C槽微带贴片天线。通过打开和关闭两个音色片来执行频率调谐。天线可以在5、6和7 GHz频带中以双频带或超宽带模式工作。当两个开关均处于导通状态且阻抗带宽为4.99至7 GHz时为33.52%时,可获得宽带模式。接地平面的总大小为50×50 mm 2 。拟议的天线通过数值模拟和实验原型的测量得到验证。该天线的增益为5至8 dBi,辐射效率约为80%。

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