Evaluation of uncertainty in electromagnetic disturbance measurement in the 1 - 18 GHz range
نویسنده
چکیده
The dispersion of the measurement of electromagnetic disturbance above 1 GHz is mainly affected by site imperfections (expressed by SVSWR). To evaluate the uncertainty in electromagnetic disturbance measurements at 1 18 GHz, we measured SVSWR and the field strength at 9 measurement site. From our result, the measured field strength at each measurement site was observed in the range of 2σ that derived from measured SVSWR, and we confirmed the relationship between SVSWR and the measured field strength. Using the relationship, we can determine the measurement uncertainty of measured field strength at test site.
منابع مشابه
Effective source mismatch uncertainty evaluation using resistive power splitter up to 18 GHz
CSIR-National Physical Laboratory (NPL) India is a National Metrology Institute (NMI), which disseminate traceability of the physical parameters in the country. In the field of microwave, it is one of the apex laboratories to provide traceability. In this paper, the method for precession measurement of effective source reflection coefficient using resistive power splitter and mismatch uncertain...
متن کاملMeasurement and Calibration of a High-Sensitivity Microwave Power Sensor with an Attenuator
In this paper, measurement and calibration of a high-sensitivity microwave power sensor through an attenuator is performed using direct comparison transfer technique. To provide reliable results, a mathematical model previously derived using signal flow graphs together with non-touching loop rule analysis for the measurement estimate (i.e., calibration factor) and its uncertainty evaluation is ...
متن کاملFabrication of High Frequency Electromagnetic Waves Absorber Sheets by Use of Iron Oxide Nanostructures
Background & Objective: The necessity of using wireless communications and the use of electromagnetic waves in today's world is obvious to everyone. Using of these equipment and development of them, although have many benefits but causes some anxiety on the way in which they influence on environment. One of the most effective ways of decreasing the unwanted effects of these waves is using of t...
متن کاملInvestigating The Effects of Modem Electromagnetic Waves (2.4 GHz) on Electroencephalogram
With respect to the dramatic increasing use of electronically communicators and wireless modems, concerns have been raised about the possible effects of emitted electromagnetic radiation on human brain. In this paper, the effects of high-frequency wireless modem waves on the brain signal are investigated. To this end, the Electroencephalograph (EEG) recording of 15 volunteers is examined in fou...
متن کاملP-53: Evaluation of The Effects of ElectroMagnetic Field (2.4 GHz) of Laptop Computers on The Sperm Quality, Caspase 3 Activity, Spermatogenic Cells Apoptosis and The Histomorphometry of Testes in The Adult Rat
Background: The qualitative computers (laptop) are as one of the sources of electromagnetic fields (EMF) and these waves are emitted from laptop when you are working with it or connecting to the internet (wireless).The aim of this study is assaying the effects of 2.4GHz waves on the spermatogenesis cycle at the time of connecting to the internet. Materials and Methods: In this study, 36 adult W...
متن کامل