NDLI: Shielding Effectiveness of Improved Microwave-Protective Suits

Content Provider	IEEE Xplore Digital Library
Author	Chung-Kwang Chou Guy, A.W. McDougall, J.A.
Copyright Year	1963
Description	The shielding effectiveness of microwave-protective suits was determined by measuring the attenuation of sections of fabric by a waveguide-transmission-loss method. The attenuation of the entire suit on a full-sized phantom man model was determined by measuring the E fields at the surface of ten locations on the phantom by diode sensors during exposure to 915- and 2450-MHz radiation fields from standard gain horns in an anechoic chamber. The results indicate that both the material attenuation and the design of the suit contribute to its shielding effectiveness. A novel material which is fire retardant and provides good ventilation was tested. The attenuation of the fabric is 35 to 40 dB for the frequency range of 1.5 to 11 GHz and 28-35 dB for frequencies between 0.65 and 1.15 GHz. The final version of the suit has at least 25 dB shielding at 2450 MHz for the ten locations tested and 20 dB at 915 MHz at the head and torso of the model. It is concluded that the suit can provide good protection for microwave frequencies in the 0.65 to 11 GHz range in which the tests were made. More work is needed in developing a suit for broadcasting and shortwave bands.
Sponsorship	IEEE Microwave Theory and Techniques Society
Starting Page	995
Ending Page	1001
Page Count	7
File Size	724966
File Format	PDF
ISSN	00189480
Volume Number	35
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1987-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Attenuation measurement Fabrics Imaging phantoms Frequency Testing Microwave theory and techniques Microwave measurements Gain measurement Diodes Measurement standards
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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