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首页> 外文期刊>Applied Computational Electromagnetics Society journal >Compact Bandpass Filter with Sharp Out-of-band Rejection and its Application
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Compact Bandpass Filter with Sharp Out-of-band Rejection and its Application

机译：具有带外抑制能力的紧凑型带通滤波器及其应用

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摘要

A novel compact bandpass filter considered as the harmonic suppression circuit is designed in this paper. Because of the application of a T-shaped structure, the filter is improved in performance and reduced in size. Two transmission zeros at passband edge can be conveniently adjusted by changing the length of the open stubs located at the center of the T-shaped structure. Two filters with different open-stub structures are designed. Good agreement between the simulation and the measurement is acquired, which verifies the theoretical predictions. Benefiting from this feature, an active frequency multiplier with the proposed filter as the output matching network is designed. When input signal is set to be 6 dBm, output power of the second harmonic varies from 6 to 8 dBm with 20 dBc suppression for the first, third and fourth harmonics.
机译：本文设计了一种新颖的紧凑型带通滤波器作为谐波抑制电路。由于采用了T形结构，滤波器的性能得以提高，尺寸也减小了。通带边缘的两个传输零点可以通过改变位于T形结构中心的开口短截线的长度来方便地进行调整。设计了两个具有不同开路结构的滤波器。仿真与测量之间取得了良好的一致性，从而验证了理论预测。受益于此功能，设计了一个有源倍频器，将所建议的滤波器作为输出匹配网络。当输入信号设置为6 dBm时，第二谐波的输出功率在6到8 dBm之间变化，对第一，第三和第四谐波的抑制为20 dBc。

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