NDLI: Near field diagnostics for HPM sources

Content Provider	IEEE Xplore Digital Library
Author	Hendricks, K.J. Coleman, P.D. Haworth, M.D. Clark, M.C. Gallegoes, R.
Copyright Year	2000
Description	Author affiliation: Air Force Res. Lab., Kirtland AFB, NM, USA (Hendricks, K.J.)
Abstract	Summary form only given, as follows. The ability to diagnose the radiated pulse from an HPM source is difficult because of the power densities, collecting areas, and data cables employed. One typically has to place diagnostics at large radii from the antenna phase center to keep the voltages induced on data cables at reasonable levels, typically c 1.5 kV breakdown threshold of 50 Ohm cable. To place the diagnostics closer required reducing the effective area of the probe to receiving microwave power. We will be discussing our use of S-band waveguide to coaxial type-N transitions to measure the radiated power from L-band HPM sources. First, we will discuss the calibration and simulation of these diagnostics. We will also show how these diagnostics have been used to measure the power radiated through Vlasov and conical antennas, and how the in-band harmonics are de-coupled from the below cutoff signals of interest. The results from these S-band probes have compared favorably with probes sampling the traveling waves in waveguides between the HPM source and the antennas.
File Size	69908
File Format	PDF
ISBN	0780359828
ISSN	07309244
DOI	10.1109/PLASMA.2000.855128
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-06-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cables Probes Breakdown voltage Antenna measurements Power measurement Threshold voltage Waveguide transitions Coaxial components L-band Calibration
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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