湖北文理学院学报
湖北文理學院學報
호북문이학원학보
Journal of Hubei University of Arts and Science
2015年
8期
19-22
,共4页
滤波器%单端输入阻抗%反射系数%耦合系数%零极点频率
濾波器%單耑輸入阻抗%反射繫數%耦閤繫數%零極點頻率
려파기%단단수입조항%반사계수%우합계수%령겁점빈솔
Filter%Single-ended input impedance%Reflection coefficient%Coupling coefficient%Zero-pole frequency
针对优化方法提取滤波器耦合系数耗时太长的问题,从单端输入阻抗的零极点角度进行分析,详细推导了耦合系数和谐振腔频率的迭代计算公式。并应用该算法对4阶Chebyshev滤波器的耦合系数进行了提取分析,提取结果与理论结果吻合良好,证明该方法是正确有效的。
針對優化方法提取濾波器耦閤繫數耗時太長的問題,從單耑輸入阻抗的零極點角度進行分析,詳細推導瞭耦閤繫數和諧振腔頻率的迭代計算公式。併應用該算法對4階Chebyshev濾波器的耦閤繫數進行瞭提取分析,提取結果與理論結果吻閤良好,證明該方法是正確有效的。
침대우화방법제취려파기우합계수모시태장적문제,종단단수입조항적령겁점각도진행분석,상세추도료우합계수화해진강빈솔적질대계산공식。병응용해산법대4계Chebyshev려파기적우합계수진행료제취분석,제취결과여이론결과문합량호,증명해방법시정학유효적。
The optimization extraction method for coupling coefficients is time-consuming. From the view of the zero-pole frequencies of the singled-ended input impedance, iterative calculation formulas to the coupling coefficients and resonator frequencies were deduced in detail. The algorithm is effectively applied to the extraction analysis of a practical 4-order Chebyshev resonator filter. Results are in good agreement with theoretical results, which proved the correctness and validity of the method.