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Slot loaded rectangular patch antenna for dual-band operations on glass-reinforced epoxy laminated inexpensive substrate

机译:插槽式矩形贴片天线,可在玻璃纤维增​​强环氧层压廉价基板上进行双频操作

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This paper presents a straightforward design and analysis of rectangular radiating patch with narrow slots and microstrip line fed patch antenna for dual band operations. A parametric analysis has been carried on during the design process for finding the desired resonant frequencies. The final design concept of the antenna has been validated through fabricating the antenna prototype and then measuring its characteristics. The proposed antenna is implemented by using cost effective FR4 substrate, which comprises of vertical narrow slots on the radiating element and partial ground plane. The experimental results of the antenna prototype show the impedance bandwidth (< -10 Db reflection coefficient, S11) 396.4 MHz (286.9-683.3 MHz) and 310 MHz (4.28-4.59 GHz) with center resonant frequency 460 MHz and 4.5 GHz respectively. The proposed antenna has achieved 6.6 dBi average gain with 85 % average radiation efficiency for lower band and 9.7 dBi average gain with 88 % radiation efficiency for upper band. The bandwidths of the antenna are broader enough to cover medical telemetry communications, UHF wireless communications and terrestrial communications services.
机译:本文介绍了具有窄缝隙的矩形辐射贴片和用于双频操作的微带线馈电贴片天线的简单设计和分析。在设计过程中进行了参数分析,以找到所需的谐振频率。天线的最终设计概念已通过制造天线原型然后测量其特性得到了验证。所提出的天线通过使用具有成本效益的FR4基板来实现,该基板由辐射元件上的垂直窄缝和部分接地平面组成。天线原型的实验结果表明,其阻抗带宽(<-10 Db反射系数,S11)分别为396.4 MHz(286.9-683.3 MHz)和310 MHz(4.28-4.59 GHz),中心谐振频率分别为460 MHz和4.5 GHz。拟议的天线在较低频段的平均辐射效率为85 dB,平均增益为6.6 dBi,在较高频段的辐射效率为88%,平均增益为9.7 dBi。天线的带宽足够宽,可以覆盖医学遥测通信,UHF无线通信和地面通信服务。

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