Wang Weimin, Wu Yongle, Liu Yuanan
School of Electronic Engineering, Beijing University of Posts and Telecommunications, P.O. Box 282, Beijing 100876, China ; Beijing Key Laboratory of Work Safety Intelligent Monitoring, Beijing University of Posts and Telecommunications, Beijing 100876, China.
School of Electronic Engineering, Beijing University of Posts and Telecommunications, P.O. Box 282, Beijing 100876, China ; The State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China.
ScientificWorldJournal. 2014 Feb 9;2014:831073. doi: 10.1155/2014/831073. eCollection 2014.
A novel coupled-line structure is proposed to design dual-band and high-power Gysel power dividers with inherent impedance-transforming functions. Based on traditional even- and odd-mode technique, the analytical design methods in closed-form formula are obtained and the accurate electrical parameters analysis is presented. Due to the usage of coupled-line sections, more design-parameter freedom and a wider frequency-ratio operation range for this kind of dual-band Gysel powder divider are obtained. Several numerical examples are designed and calculated to demonstrate flexible dual-band applications with different impedance-transforming functions. A practical microstrip power divider operating at 2 GHz and 3.2 GHz is designed, fabricated, and measured. The good agreement between the calculated and measured results verifies our proposed circuit structure and analytical design approach.
提出了一种新型耦合线结构，用于设计具有固有阻抗变换功能的双频段高功率吉塞尔功率分配器。基于传统的奇偶模技术，得到了闭式公式的解析设计方法，并给出了精确的电气参数分析。由于采用了耦合线段，这种双频段吉塞尔功率分配器获得了更多的设计参数自由度和更宽的频率比工作范围。设计并计算了几个数值例子，以展示具有不同阻抗变换功能的灵活双频段应用。设计、制作并测量了一个工作在2GHz和3.2GHz的实际微带功率分配器。计算结果与测量结果的良好一致性验证了我们提出的电路结构和解析设计方法。
