Attenuation measurement system in the frequency range of 10 to 100 MHz

被引：16

作者：

Widarta, A ^{[1
]}

Tomoteru, K ^{[1
]}

机构：

[1] Natl Metrol Inst Japan, Tsukuba, Ibaraki 3058563, Japan

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2003年 / 52卷 / 02期

关键词：

attenuation measurement; radio frequency; standard;

D O I：

10.1109/TIM.2003.810010

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：

An attenuation measurement system, which employs a traceable inductive voltage divider (IVD) at 1 kHz as a reference standard and dual-channel intermediate frequency (IF) substitution method, is developed as an attenuation standard in the frequency range of 10 to 100 MHz. High isolation between the channels is achieved by introducing an assembly of light emission diode, optical fiber, and photodetector into the system. Sources of uncertainties of the system, such as leakage, are discussed and the expanded uncertainties are expected to be 0.001 dB for an attenuation range up to 20 dB and 0.04 dB for 80 dB.

引用

页码：302 / 305

页数：4

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