LUMPED DUAL-FREQUENCY IMPEDANCE TRANSFORMERS FOR FREQUENCY-DEPENDENT COMPLEX LOADS

被引：23
|
作者：
Liu, Y. [1 ,2 ]
Zhao, Y. J. [1 ]
Zhou, Y. G. [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Elect & Informat Engn, Nanjing 210016, Peoples R China
[2] Southeast Univ, State Key Lab Millimeter Waves, Nanjing 210096, Jiangsu, Peoples R China
来源：
PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER | 2012年 / 126卷
关键词：
BAND BANDPASS-FILTERS; MATCHING NETWORKS; DESIGN; RESONATORS; SECTIONS; ANTENNA;
D O I：
10.2528/PIER11121207
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents lumped dual-frequency impedance transformers for frequency-dependent complex loads. According to different dual-frequency allocations of a complex load in Smith chart, three types of impedance matching networks are presented respectively. Several kinds of lumped circuit blocks are used as basic elements for constructing these transformers with design formula deduced. Various examples are given for describing the design procedures. Good features such as big frequency ratio and big matching bandwidths are demonstrated. These lumped dual-frequency impedance transformers have advantage of much compacter dimensions compared to distributive solutions.
引用
收藏
页码：121 / 138
页数：18
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