一种宽频带缝隙型手机天线设计
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国家自然科学基金资助项目(61501277;61307050);山东省高等学校科技计划资助项目(J14LN86)

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Design of wideband slot antenna for mobile phone applications
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    摘要:

    针对超薄多频带手机的需要,提出一款新型印刷缝隙型手机天线。天线印刷在0.8 mm厚FR-4电路板上,地面开有2个缝隙,其中1个为矩形,另外1个为矩形与圆形组合形式。馈电结构采用50 Ω微带线与一圆形贴片、一矩形带线组合构成倒L状。馈电线的弯折部分在地上的投影落于缝隙的内部,天线在电路板上占用的区域仅限于缝隙内部,保持了天线的小型化。此结构缝隙天线能够达到宽带匹配,测试的-6 dB带宽为0.695~0.805 GHz,1.5~3.2 GHz,4~15 GHz,能够覆盖LTE700,DCS1800,PCS1900,UMTS,LTE2300,LTE2500,全球定位系统(GPS),无线局域网(WLAN)以及超宽带通信(UWB)的高频段。

    Abstract:

    A novel printed slot antenna is presented to meet the requirement of low profile and multiband for a mobile phone. The antenna is printed on a 0.8 mm thick FR-4 substrate with two slots etched on the ground plane. One of the slots has a rectangular shape and the other has a hybrid shape composed of a rectangle and a circle. The antenna is fed by a 50 Ω microstrip connected to a circular patch and a rectangular strip, forming an inverted-L shape. The footprint of the folded portion of the feeding structure on the ground locates inside the slot region which results in a compact antenna size on the PCB board. The proposed antenna has a wideband impedance matching with measured -6 dB bandwidth of 0.695-0.805 GHz,1.5-3.2 GHz,and 4-15 GHz covering LTE700, DCS1800, PCS1900, UMTS, LTE2300, LTE2500, Global Positioning System(GPS), Wireless Local Area Network(WLAN), and Ultra-Wideband(UWB) upper band.

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肖 霞,宗卫华,魏向阳,黄千媛.一种宽频带缝隙型手机天线设计[J].太赫兹科学与电子信息学报,2018,16(1):105~109

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  • 收稿日期:2016-06-06
  • 最后修改日期:2016-09-13
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  • 在线发布日期: 2018-03-06
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