On the measurement of power via a superheterodyne spectrum analyzer

被引：25

作者：

Bertocco, Matteo ^{[1
]}

Sona, Alessandro ^{[1
]}

机构：

[1] Univ Padua, Dept Informat Engn, I-35131 Padua, Italy

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2006年 / 55卷 / 05期

关键词：

channel-power technique; global system for mobile communications (GSM); RF power measurement; superheterodyne spectrum analyzer; universal mobile telecommunications system (UMTS); zero-span technique;

D O I：

10.1109/TIM.2006.880322

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：

The measurement of power via a superheterodyne spectrum analyzer is investigated. In particular, the performances of two common measurement techniques, in which one is based on a "channel-power" approach and the other on the use of the analyzer in a "zero-span" mode, are assessed. The purpose is both to show advantages and drawbacks of these techniques and to provide useful hints for improving the measurement accuracy and repeatability. To this aim, an original theoretical approach, which is suitably supported by meaningful experimental examples, is proposed in this paper. The experiments also show how to compensate some typical measurement errors due to the analyzer video-filter effects by a simple calibration procedure.

引用

页码：1494 / 1501

页数：8