具有x波段抑制滤波功能的小型化圆形宽缝隙超宽带天线

Yingsong Li, W. Li, Cheng-Yuan Liu, T. Jiang
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引用次数: 4

摘要

提出了一种具有x波段抑制滤波特性的cpw馈电超宽带单极天线。所提出的抑制滤波器是通过在CPW馈电信号线中嵌入内置短段的阶跃阻抗谐振器(SIR)获得的。通过调整阶跃阻抗谐振器及其内部短段的尺寸,可以控制陷波带的中心频率。所提出的无SIR超宽带天线也具有131%的阻抗带宽。对天线进行了成功的设计、仿真和测试。实验和数值结果表明,该天线体积紧凑,尺寸为32×24mm2,在电压驻波比小于2的情况下,阻抗带宽范围为2.8GHz ~ 13.5GHz,缺口频段频率为8.2 ghz ~ 9.4 ghz,适用于x波段通信。
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Miniaturization circular wide slot ultra wideband antenna with X-band rejection filter function
A CPW-fed ultra-wideband monopole antenna with X-band rejection filter characteristic is proposed. The proposed rejection filter is obtained by using a stepped impedance resonator (SIR) with inner stub embedded in the CPW fed transmission signal line. The center frequency of the notch band can be controlled by adjusting the dimensions of the stepped impedance resonator and its inner stub. The proposed UWB antenna without SIR also has an impedance bandwidth of 131%. The antenna was designed, simulated and measured successfully. Experimental and numerical results show that the proposed antenna with compact size of 32×24mm2, has an impedance bandwidth range from 2.8GHz to 13.5GHz for voltage standing-wave ratio less than 2, expect the notch band frequency 8.2GHz-9.4GHz for X-band communication applications.
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