希尔伯特分形PIFA天线用于DCS, pc, UMTS和WiMAX无线应用

Youssouf Zemam, Noureddine Boukli Hacene, Y. Belhadef
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引用次数: 1

摘要

本文提出了一种适用于DCS、PCS、UMTS和WiMAX无线通信系统的新型四频带分形PIFA天线设计。所提出的天线是PIFA天线,其中在第三次迭代时在辐射贴片的中心插入具有希尔伯特分形形状的槽。为了使PIFA天线根据需要的应用在四个频段上工作,采用了PIFA天线上植入槽的分形形状。与初始PIFA天线相比,具有分形槽形的天线具有小型化的尺寸,可以提供四波段操作,因此辐射贴片的尺寸等于28 mm × 28 mm。该结构可在以下频段工作:(1.73-2.08)GHz、(2.46-2.59)GHz、(3.39-3.47)GHz和(4.56-5.02)GHz频段,分别覆盖DCS、PCS、UMTS和WiMAX移动通信系统,所需频段的增益范围为2db至6db。在CST MWs软件下对分形PIFA天线进行了设计,并用HFSS软件对设计结果进行了验证。两种仿真软件的仿真结果吻合较好。
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Hilbert Fractal PIFA Antenna for DCS, PCS, UMTS and WiMAX Wireless Applications
In this article, a novel quad-band fractal PIFA antenna design for DCS, PCS, UMTS, and WiMAX wireless communications systems is presented. The proposed antenna is a PIFA antenna where a slot having a Hilbert fractal shape at the third iteration has been inserted at the center of the radiating patch. The fractal shape of the implanted slot on the PIFA antenna was used in order to make the antenna operational at four frequency bands, according the required applications. The proposed antenna with the fractal shape of the slot offers quad-band operation with a miniaturized size compared to the initial PIFA antenna, such that the dimensions of the radiating patch become equal to 28 mm × 28 mm. This structure is operational in the following frequency bands: (1.73–2.08) GHz, (2.46–2.59) GHz, (3.39–3.47) GHz, and the band (4.56–5.02) GHz covering DCS, PCS, UMTS, and WiMAX mobile communications systems, respectively, with a gain ranging from 2 dB to 6 dB at the desired frequency bands. The fractal PIFA antenna design was carried out under CST MWs software with validation of the results made using HFSS software. There is good agreement between the obtained results by the two simulation software.
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