A high performance transformer-type Wilkinson power splitter with compensating circuit for CATV transmission system and optimal design method
A high performance transformer-type Wilkinson power splitter with compensating circuit for CATV transmission system and optimal design method
复制标题
CATV传输系统高性能带补偿电路变压器型威尔金森功率分配器及优化设计方法
DOI：
10.1109/tce.2004.1341703
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发表时间：
2004
影响因子：
4.3
通讯作者：
Y. Yun
中科院分区：
文献类型：
--
作者：
D. Kim;S. Jung;Y. Yun
本文研究了一种适用于含有下变频DBS信号的CATV传输系统的功分器。本研究提出一种新型的变压器式威尔金森功率分配器，并将其应用于有线电视传输系统中。为了从功率分配器中提取最佳的RF性能，使用新提出的采用变压器型集总等效电路的设计方法对其进行了优化设计。与传统的功率分配器相比，该功率分配器显示出高度改善的RF特性。该器件的带宽可扩展至1500 MHz，回波损耗和隔离度在5 MHz至1500 MHz范围内低于-15 dB。上述结果表明，带补偿电路的变压器型威尔金森功分器是一种很有前途的CATV功分器。
This paper concerns the power splitter for CATV transmission system including down-converted DBS signals. In this work, a novel transformer-type Wilkinson power splitter with a compensating circuit was developed for application in a CATV transmission system. In order to extract the best RF performance from the power splitter, it was optimally designed using a newly proposed design method that employs transformer-type lumped equivalent circuit. The power splitter showed highly improved RF characteristics in comparison with conventional ones. It exhibited a bandwidth that extended up to 1500 MHz, and return loss and isolation values lower than -15 dB from 5 MHz to 1500 MHz. The above results indicate that the transformer-type Wilkinson power splitter with a compensating circuit is a promising candidate for application in CATV.