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								. LI Zong-Qian, SHE Jing-Zhao et al. Foundations for Mi-crowave Engineering. Beijing: Tsinghua University Press,2004.1 (in Chinese)(李宗谦, 佘京兆等. 微波工程基础. 北京: 清华大学出版社, 2004.1)2. HFSS user's Guide. ANSOFT CORPORATION 
. LI Zong-Qian, SHE Jing-Zhao et al. Foundations for Mi-crowave Engineering. Beijing: Tsinghua University Press,2004.1 (in Chinese)(李宗谦, 佘京兆等. 微波工程基础. 北京: 清华大学出版社, 2004.1)2. HFSS user's Guide. ANSOFT CORPORATION