| 马刺狭孔用于Wilkinson功分器高次谐波抑制的研究 |
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| 作者姓名： | 刘海文 |
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| 作者单位： | 中国科学院光电技术研究所微细加工光学技术国家重点实验室,成都610209 |
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| 基金项目： | 中国科学院百人计划项目基金和德国Alexandervon Humboldt基金会项目（1120829） |
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| 摘 要： | 文章提出了一种新型的非对称马刺狭孔结构，该结构具有可调控的双带隙特性，并提出基于LCR谐振器的该马刺狭孔的等效电路模型，建立了通过电磁仿真结果提取其电路参数的方程。采用RBF神经网络建模来辅助设计双带隙马刺狭孔，将该马刺狭孔用于Wilkinson功分器高次谐波的研究。实验结果证明，Wilkinson功分器的二次谐波和三次谐波分别降低27dB和34dB。该功分器在3．8GHz处反射系数为-3．5dB±0．3dB，在3．12GHz时为-3．7dB。
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| 关 键 词： | 马刺狭孔 双带隙 谐波抑制 神经网络 Wilkinson功分器 |
Higher Harmonics Suppression of Wilkinson Power Divider Using Spurline |
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| Authors: | Liu Haiwen |
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| Institution: | Liu Haiwen ( National Key Lab. of Optical Technclogies for Microfabrication, Institute of Optics ＆ Electronics, Chinese Academy of Sciences, Chengdu 610209, China) |
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| Abstract: | A newly asymmetrical spurline structure is presented in this paper. Its dual-bandgap characteristics are reported and can be adjusted by changing the length difference between spurlines. Then, a simple circuit model is set up for the spurline structure by using two LCR-resonators and the circuit parameters can be extracted from electromagnetic （EM） simulations. Moreover, a computer-aid design method （CAD） with radius base function （RBF） neural network to design the new spurline structure is proposed. To verify its validity, a Wilkinson power divider using the proposed spurlines was designed, fabricated, and measured. Experimental results verify that 27dB suppression for the second harmonic and 34dB suppression for the third harmonic are obtained, respectively. In addition, the reflection coefficients are -3.5dB ±0.3dB below 3.8GHz and -3.7dB at the operating frequency 3. 12GHz. |
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| Keywords: | Spurline Dual bandgap Harmonics suppression Neural network Wilkinson power divider |
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