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A corner truncated fractal slot ultrawide spectrum sensing antenna for wireless cognitive radio sensor network
International Journal of Communication Systems ( IF 1.7 ) Pub Date : 2020-12-22 , DOI: 10.1002/dac.4710 Pankaj Kumar Goswami 1 , Garima Goswami 2
International Journal of Communication Systems ( IF 1.7 ) Pub Date : 2020-12-22 , DOI: 10.1002/dac.4710 Pankaj Kumar Goswami 1 , Garima Goswami 2
Affiliation
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Due to the scarcity of the radio frequency spectrum, the emergent network sharing technique elicits the efficient use of licensed unutilized spectrum. Here, an ultra‐wideband (UWB) microstrip antenna is proposed for wireless cognitive radio sensor network (WCRSN). The antenna is uniquely designed for large spectrum scanning of channel vacancies in licensed frequency bands. Software‐defined radios (SDR) govern the algorithmic controls on spectrum sensing and channel interface using an appropriate antenna. The antenna comprises the effects of fractal slot patch and electromagnetic bandgap (EBG) ground structures on 12 × 18 × 1.6 mm3 FR4 (relative dielectric constant of 4.4) substrate. Circular polarization is achieved through corner truncation to make antenna orientation free in wireless sensing networks. The measured |S11| parameter offers 0.75‐ to 12‐GHz wide spectrum sensing with 2.51‐dBi average gain. The antenna is unique in compactness and includes lower edge bands of frequencies (0.75–3.1 GHz) along with UWB (3.1–12.0 GHz) for a very wide range scanning to utilize vacant channel opportunity in WCRSN through SDR. The proposed structure is experimented and validated for real‐time wideband scanning of the frequency spectrum within the operating limit as per the allotted FCC standard.
中文翻译：
用于无线认知无线电传感器网络的角截头分形缝隙超宽频谱感测天线
由于无线电频谱的稀缺性，新兴的网络共享技术引发了对许可未使用频谱的有效利用。在此，提出了一种用于无线认知无线电传感器网络（WCRSN）的超宽带（UWB）微带天线。该天线经过专门设计，可对许可频段中的信道空位进行大频谱扫描。软件无线电（SDR）使用适当的天线控制频谱感应和信道接口上的算法控制。天线包括分形缝隙贴片和电磁带隙（EBG）接地结构对12×18×1.6 mm 3的影响FR4（相对介电常数4.4）。圆极化通过拐角截断来实现，从而使无线传感网络中的天线方向自由。测得的| S 11 | 该参数提供0.75至12 GHz的宽频谱感测，平均增益为2.51-dBi。该天线结构紧凑，具有较低的频带边缘（0.75–3.1 GHz）和UWB（3.1–12.0 GHz），可进行很宽的扫描范围，从而通过SDR利用WCRSN中的空闲信道机会。对所提出的结构进行了实验和验证，以按照分配的FCC标准在操作极限内对频谱进行实时宽带扫描。
更新日期：2021-02-03
中文翻译：
用于无线认知无线电传感器网络的角截头分形缝隙超宽频谱感测天线
由于无线电频谱的稀缺性，新兴的网络共享技术引发了对许可未使用频谱的有效利用。在此，提出了一种用于无线认知无线电传感器网络（WCRSN）的超宽带（UWB）微带天线。该天线经过专门设计，可对许可频段中的信道空位进行大频谱扫描。软件无线电（SDR）使用适当的天线控制频谱感应和信道接口上的算法控制。天线包括分形缝隙贴片和电磁带隙（EBG）接地结构对12×18×1.6 mm 3的影响FR4（相对介电常数4.4）。圆极化通过拐角截断来实现，从而使无线传感网络中的天线方向自由。测得的| S 11 | 该参数提供0.75至12 GHz的宽频谱感测，平均增益为2.51-dBi。该天线结构紧凑，具有较低的频带边缘（0.75–3.1 GHz）和UWB（3.1–12.0 GHz），可进行很宽的扫描范围，从而通过SDR利用WCRSN中的空闲信道机会。对所提出的结构进行了实验和验证，以按照分配的FCC标准在操作极限内对频谱进行实时宽带扫描。
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