强激光与粒子束, 2018, 30 (3): 033003, 网络出版: 2018-05-29  

宽带Wilkinson功分器的粒子群优化设计

Design of broadband Wilkinson power divider based on particle swarm optimization
作者单位
西安邮电大学 电子工程学院, 西安 710061
摘要
提出了一种采用圆弧型结构的宽频Wilkinson功分器的优化设计方法。在研究奇模-偶模分析理论的基础上,首先,根据奇-偶模分析理论得出设计电路的参数方程,接着采用粒子群算法对方程进行优化,获得具体的设计参数,有效提高功分器的设计效率与准确性。为了验证设计方案的正确性,设计了8~12 GHz的宽带功分器。测试结果显示,在工作频段范围内,各端口回波损耗小于-20 dB,传输损耗小于3.4 dB,隔离度小于-20 dB,实物测试结果与仿真结果吻合良好,验证了设计方法的可行性。
Abstract
A broadband Wilkinson power divider with circular micro-strip line structure is presented . Firstly, the design equation is derived based on the analysis of the odd-even mode. Secondly, Using particle swarm optimization to obtain the design parameter to design the Wilkinson power. This method improve the efficiency and accuracy of the power divider design. The results show that, in the frequency range of 8-12 GHz ,the return loss is less than -20 dB, the ports transmission loss is less than 3.4 dB, the isolation degree is less than -20 dB. The simulation results are in good agreement with the measured results which verify the feasibility of this design.
参考文献

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武欢欢, 陈明, 张延冬, 申宁. 宽带Wilkinson功分器的粒子群优化设计[J]. 强激光与粒子束, 2018, 30(3): 033003. 武欢欢, 陈明, 张延冬, 申宁. Design of broadband Wilkinson power divider based on particle swarm optimization[J]. High Power Laser and Particle Beams, 2018, 30(3): 033003.

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