Experimental study of factors affecting the High Power Microwave measurements

Sanjay, D. Ratan; Chourasia, Nitin; Singh, Rakesh Kumar

doi:10.1109/apmc46564.2019.9038685

Cited by 2 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The development of A/D converters, which are currently being fitted in rapid digital oscilloscopes, led in recent years to the popularization of the so-called conventional method, in which the tested electromagnetic impact is represented by a time waveform of voltage on the output of a passive sensor reacting to electric field presence (a so-called D-dot sensor)see Figure 1. In this method, transmission via a fiber optic link is often used in order to protect the voltage acquisition circuits and to transmit the measurement result without distortions over a safe distance [8,9]. In addition, the measurement system structure contains a matching element, a so-called balun, and attenuators, which are used to change the range.…”

Section: Metrology Of High-power Microwave Fieldsmentioning

confidence: 99%

D-Dot Sensor Response Improvement in the Evaluation of High-Power Microwave Pulses

2021

View full text Add to dashboard Cite

This article investigates the issue of measuring high-power microwave (HPM) pulses. The high energy of these pulses poses a significant threat to many electronic systems, including those used to manage critical infrastructure. This work focuses on requirements for a potential portable measurement device and suggests the application of a method for this purpose, involving the use of a D-dot sensor and a rapid A/D converter. The applied converter enables recording the time waveform on the measuring chain output, also in the case of repetition and time duration of HPM signals. The authors also present a quantitative description of signal processing by the analogue section of the measurement chain solution presented herein and suggest algorithms for digital processing of the signals, the objective of which is to minimize low-frequency interference in the process of reconstructing the time waveform of an electric field using numerical integration.

show abstract

Section: Metrology Of High-power Microwave Fieldsmentioning

confidence: 99%

D-Dot Sensor Response Improvement in the Evaluation of High-Power Microwave Pulses

2021

View full text Add to dashboard Cite

show abstract

“…Acquisition of the waveforms became possible thanks to the advent of fast analogue to digital converters (ADC). The converters with sampling frequencies of up to 50 GHz are applied in modern digital scopes which, thanks to that, are used as front ends of many measuring sets [6,[8][9][10]. In sets especially intended to measure strong fields, there arises the problem of the measuring data transmission.…”

Section: Related Workmentioning

confidence: 99%

Metrology and Measurement Systems

Jakubowski

2020

View full text Add to dashboard Cite

HPM meters are required for the assessment of fields generated by sources of high-power microwaves. Finding the inverse calibration curves for such instruments is important for ensuring accuracy. The procedure is relatively simple for meters consisting of linear devices but there can also be hardware solutions implementing nonlinear ones. The objective of the present work was to develop a convenient procedure to allow finding such a curve when the meter uses a D-dot probe and a power detector. For that purpose, the results of low voltage measurements describing the properties of the detector were first analysed. Then a software code was developed to estimate the RMS value of an incident field based on measured output and frequency response. The response was estimated with very low electric field. And finally, the performance of the proposed procedure was verified by tests conducted with high electric field in a TEM cell. High conformity of the output of the meter with fields of known values was demonstrated. The maximum error related to the meter range did not exceed 4%.

show abstract

Experimental study of factors affecting the High Power Microwave measurements

Cited by 2 publications

References 4 publications

D-Dot Sensor Response Improvement in the Evaluation of High-Power Microwave Pulses

D-Dot Sensor Response Improvement in the Evaluation of High-Power Microwave Pulses

Metrology and Measurement Systems

Contact Info

Product

Resources

About