Inductively Compensated Parallel Coupled Microstrip Lines and Their Applications
Inductively Compensated Parallel Coupled Microstrip Lines and Their Applications
复制标题
DOI：
10.1109/tmtt.2006.881026
复制
发表时间：
2006-08
影响因子：
4.3
通讯作者：
Ravee Phromloungsri;M. Chongcheawchamnan;I. Robertson
中科院分区：
文献类型：
--
作者：
Ravee Phromloungsri;M. Chongcheawchamnan;I. Robertson
提出了一种利用集总电感补偿平行耦合微带线中奇模和偶模相速度不相等的简单方法。单补偿和双补偿的情况下进行了分析，使最佳电感值和补偿耦合线的电气长度计算从封闭形式的表达式。提出的技术不仅提高了性能，但也产生了一个更紧凑的设计。为了证明该技术的广泛适用性，补偿耦合线结构被用于增强900 MHz Lange耦合器、1 GHz多段10 dB耦合器、900 MHz平面Marchand巴伦和1.8 GHz并联耦合带通滤波器的性能
A simple method using lumped inductors to compensate unequal even- and odd-mode phase velocities in parallel coupled microstrip lines is presented. The singly and doubly compensated cases are analyzed to enable the optimum inductor values and the electrical lengths of the compensated coupled lines to be calculated from closed-form expressions. The technique proposed not only improves the performance, but also yields a more compact design. To demonstrate the technique's broad range of applicability, the compensated coupled-line structure is used to enhance the performance of a 900-MHz Lange coupler, a 1-GHz multisection 10-dB coupler, a 900-MHz planar Marchand balun, and a 1.8-GHz parallel coupled bandpass filter