Measurement of ACLR with High Dynamic Range

被引：4
|
作者：
Andersen, Olav [1 ]
Wisell, David [2 ]
Keskitalo, Niclas [2 ,3 ]
机构：
[1] Ericsson Telecom AB, S-80176 Gavle, Sweden
[2] Ericsson AB, S-16480 Stockholm, Sweden
[3] Univ Gavle, Ctr RF Measurement Technol, ITB Elect, S-80176 Gavle, Sweden
来源：
2008 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST, VOLS 1-4 | 2008年
关键词：
Intermodulation; power amplifiers;
D O I：
10.1109/MWSYM.2008.4633156
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 paper a method to overcome the insufficient dynamic range of RF measurement instruments, i.e. signal generators and spectrum analyzers, for distortion measurements on feedforward and other highly linear amplifiers, is discussed. A circuit board is designed, built and verified. Its performance is found to be superior to traditional methods using filters, both from a technical performance and flexibility standpoint as well as from an economic view. ACLR measurements for WCDMA signals can be done well below -70 dBc using the produced circuit board.
引用
收藏
页码：273 / +
页数：2
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