A coplanar waveguide (CPW) -fed staircase shape antenna with dual stopband characteristic is presented in this paper.The proposed antenna consists of a CPW-rectangular feeding line and a symmetrical staircase shape radiation patch.By using a U-slot in the feeding line,a stopband of 800MHz for band rejection of wireless local area network (WLAN) is achieved.Another stopband of 600MHz is obtained by implanting two slits in the ground plane.Experimental results show the designed antenna,with a compact size of 34 mmon 25.4mm,has an impedance bandwidth of 3.01-10.67 GHz for voltage standing wave radio (VSWR) less than 2,except two frequency stopbands of 3.4-4.2 GHz and 5.1-5.9GHz.Moreover,the antenna also shows omnidirectional radiation patterns in the H-lane and good gain flatness.
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机译：本文介绍了一种具有双阻带特性的共面波导馈电阶梯形天线，该天线由CPW矩形馈电线和对称的阶梯形辐射斑组成。 ，获得了一个800MHz的阻带，用于无线局域网（WLAN）的频带抑制。通过在地面上植入两个缝隙获得了另一个600MHz的阻带。实验结果表明，所设计的天线尺寸紧凑，尺寸为25.4mm，34 mm ，电压驻波无线电（VSWR）小于2时具有3.01-10.67 GHz的阻抗带宽，除了两个3.4-4.2 GHz和5.1-5.9GHz的频率阻带。此外，天线还在H-通道和良好的增益平坦度。
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