共面波导馈电的三陷波超宽带天线的设计
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摘要
设计了一种共面波导馈电的三陷波超宽带天线。所设计的天线尺寸为30mm×30mm×1.8mm,印刷在介电常数为4.4的FR4介质基板上。通过分别在辐射贴片上加载"哑铃"型缝隙和在共面馈线上加载不对称"U"型缝隙以及共面地板上加载矩形缝隙来实现三陷波特性。利用高频仿真软件HFSS进行仿真、分析和优化,最终实现天线在2.20～11.82GHz的频段内,除了在3.52～3.80GHz、4.60～5.60GHz和7.62～8.30GHz具有陷波特性,回波损耗大于-10dB,则其他频带回波损耗小于-10dB,且具有陷波频带可调的优点。天线能够避免分别来自WiWAX系统、WLAN系统和X波段信号的干扰,同时在超宽带(UWB)天线的通带内能实现良好的远场辐射特性。
A coplanar waveguide(CPW)fed UWB antenna with triple-notched band is designed.The size of the antenna is 30mm×30mm×1.8mm and printed on FR4 dielectric substrate with a dielectric constant of 4.4.The triple-notched characteristics are realized by loading "dumbbell type" slot on the radiation patch and loading asymmetrical U-shaped slot on the fed line as well as loading rectangular cracks on the coplanar ground.After simulating,analyzing and optimizing by the high frequency simulation software HFSS,the proposed antenna exhibits an impedance bandwidth over an ultra-wide band frequency range from 2.20 GHz to 11.82 GHz.In addition to the notch characteristics at 3.52～3.80 GHz,4.60～5.60 GHz and 7.62～8.30 GHz,the return loss is great than-10 dB,the return loss of other bands is less than-10 dB.It can avoid interference from the WiMAX,WLAN and X band signals respectively,and achieve good far-field radiation characteristics in the passband of UWB.
A coplanar waveguide(CPW)fed UWB antenna with triple-notched band is designed.The size of the antenna is 30mm×30mm×1.8mm and printed on FR4 dielectric substrate with a dielectric constant of 4.4.The triple-notched characteristics are realized by loading "dumbbell type" slot on the radiation patch and loading asymmetrical U-shaped slot on the fed line as well as loading rectangular cracks on the coplanar ground.After simulating,analyzing and optimizing by the high frequency simulation software HFSS,the proposed antenna exhibits an impedance bandwidth over an ultra-wide band frequency range from 2.20 GHz to 11.82 GHz.In addition to the notch characteristics at 3.52～3.80 GHz,4.60～5.60 GHz and 7.62～8.30 GHz,the return loss is great than-10 dB,the return loss of other bands is less than-10 dB.It can avoid interference from the WiMAX,WLAN and X band signals respectively,and achieve good far-field radiation characteristics in the passband of UWB.
引文
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[9]LIAO X J,YANG H C,HAN N,et al.A perture UWBantenna with tripled and notched characteristics[J].E-lectron Lett,2014,50(3):728-730.
[10]帅陈杨,王光明,宗彬峰,等.一种紧凑型超宽带双陷波天线设计与研究[J].微波学报,2016,32(5):39-43.SHUAI Chenyang,WANG Guangming,ZONG Binfeng,et al.Design and research of a compact ultra wideband antenna with dual band-notched characteristic[J].Journal of Microwaves,2016,32(5):39-43.
[2]MOOSAZADEH M,ABBOSH A M,ESMATI Z.Design of compact planar ultrawideband antenna with dual-notched bands using slotted square patch and pishaped conductor-backed plane[J].IET Microwaves,Antennas and Propagation,2012,6(3):290-294.
[3]FAKHRIAN M M,REZAEI P,AZADI A.A planar UWB bat-shaped monopole antenna with dual bandnotched for WiMAX/WLAN/DSRC[J].Wireless Pers Commun.2015,81(2):881-891.
[4]郁剑,张丹萍,白拴明,等.一种新型超宽带陷波天线的设计[J].压电与声光,2017,39(2):312-315.YU Jian,ZHANG Danping,BAI Shuanming,et al.Design of a novel UWB band notched antenna[J].Piezoelectrics&Acoustooptics,2017,39(2):312-315.
[5]曹新宇,张金玲,杨虹蓁.新型小尺寸双陷波超宽带天线设计[J].电波科学学报,2014,29(3):548-551.CAO Xinyu,ZHANG Jinling,YANG Hongzhen.New small size ultra-wideband antenna having two frequency bands notch function[J].Chinese Journal of Radio Science,2014,29(3):548-551.
[6]YANG G,CHU Q X,TU Z H.A compact band-notched UWB antenna with controllable notched bandwidths by using coupled slots[J].Journal of Elctromagnetic Waves and Apllications,2011,25(14/15):2148-2157.
[7]LI Yingsong,LI Wenxing.A switchable UWB slot antenna using SIS-HSIR and SIS-SIR for muti-modewireless communications applications[J].Aces Journal,2012,27(4):298-302
[8]YANG G,CHU Q X,HUANG T G.A compact UWBantenna with sharp dual band-notched characteristics for lower and upper WLAN band[J].Progress In Electro-magnetics Reasch C,2012,29(5):135-148.
[9]LIAO X J,YANG H C,HAN N,et al.A perture UWBantenna with tripled and notched characteristics[J].E-lectron Lett,2014,50(3):728-730.
[10]帅陈杨,王光明,宗彬峰,等.一种紧凑型超宽带双陷波天线设计与研究[J].微波学报,2016,32(5):39-43.SHUAI Chenyang,WANG Guangming,ZONG Binfeng,et al.Design and research of a compact ultra wideband antenna with dual band-notched characteristic[J].Journal of Microwaves,2016,32(5):39-43.