High frequency arbitrary waveform generator using a nonlinear transmission line

被引：2
|
作者：
Kim, Chanwoo [1 ]
Bae, Jaemin [1 ]
Han, Heeje [1 ]
Park, Soonwoo [1 ]
Kim, Hongjoon [1 ]
机构：
[1] Kyungpook Natl Univ, Coll IT Engn Elect Engn, Daegu, South Korea
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2020年 / 62卷 / 03期
基金：
新加坡国家研究基金会;
关键词：
arbitrary waveform generator; Fourier synthesis theory; harmonic generator; nonlinear transmission line; phase shifter;
D O I：
10.1002/mop.32182
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：
In this article, a high-frequency arbitrary waveform generator (AWG) based on Fourier synthesis theory is presented. A key element consists of a nonlinear transmission line (NLTL) that acts as a harmonic generator for large signals and as a phase shifter for small signals. The harmonics generated by the NLTL are separated into four channels using power dividers and each harmonic is bandpass filtered in each channel. The phase and the amplitude are then modulated in each channel by an NLTL phase shifter and a voltage variable attenuator. Finally, vector modulated signals from each channel are combined in Wilkinson power combiners to form any waveform shape. We used 0.5 GHz as a master signal and synthesized waveforms using all four channels.
引用
收藏
页码：1204 / 1208
页数：5
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