An Active Load-Pull Technique creating Time-Variant Impedances to Emulate Coupling between Power Amplifiers

被引：0
|
作者：
Nopchinda, Dhecha [1 ]
Buisman, Koen [1 ]
机构：
[1] Chalmers Univ Technol, SE-41296 Gothenburg, Sweden
来源：
2017 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS) | 2017年
关键词：
5G mobile communication; arrays; power amplifiers; coupling; distortion; load-pull;
D O I：
暂无
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：
A method for emulating antenna array coupling effects, based on active load-pull, to present time-varying impedances to power amplifiers is presented. An entire array, given identical elements, can be emulated using a single device-under-test. The method is demonstrated and verified by studying two scenarios, where the resulting adjacent channel power ratio and error-vector magnitude are given as function of delay and coupling for a 6W GaN power amplifier. Differences in adjacent channel power ratio and error-vector magnitude can be attributed to time-variant load impedances.
引用
收藏
页码：1433 / 1436
页数：4
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