NDLI: Effect of Human Body on 3-D Radiation Pattern and Efficiency of Mobile Handsets

Content Provider	IEEE Xplore Digital Library
Author	Krogerus, J. Icheln, C. Vainikainen, P.
Copyright Year	2004
Description	Author affiliation: Radio Lab., Helsinki Univ. of Technol. (Krogerus, J.; Icheln, C.; Vainikainen, P.)
Abstract	Mobile handsets are used in proximity to user's body and this reduces the transmitted or received power of the handset. In this paper it is investigated how the human body affects the radiation characteristics, e.g. radiation pattern and total efficiency. The test handset is an active GSM mobile phone and the experiments are 3-D far-field radiation pattern measurements in an anechoic chamber at the 1800 MHz band. In particular it is studied how large differences occur in the results between different test persons when they hold the mobile phone as similarly as possible. Moreover, in the second experiment the measurements are performed so that the mobile phone is against the test user's head but the user does not hold the phone in his/her hand. The variation in the total radiated power (or efficiency) between the three test persons was only about 0.2 dB. The average body loss due to the user's head was 1.6 dB. The additional body loss due to the user's hand was 2.6 dB. The results for a phantom agreed well with the results for the test persons, when only the head was included in the measurements
Starting Page	271
Ending Page	276
File Size	255433
Page Count	6
File Format	PDF
ISBN	0780388798
DOI	10.1109/IMTC.2005.1604115
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-05-16
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Humans Mobile handsets Testing Telephone sets Antenna measurements Antenna radiation patterns Imaging phantoms GSM Anechoic chambers Performance evaluation
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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

User effect on total radiated power and 3-D radiation pattern of mobile handsets

Comparison between radiation efficiencies of phone antennas and radiated power of mobile phones measured in anechoic chambers and reverberation chamber

Phantoms for radiation measurements of mobile phones

Radiations phantom for handheld phones

Validation of handset antenna test methods

Effect of the Human Body on Total Radiated Power and the 3-D Radiation Pattern of Mobile Handsets

Radiation pattern measurements of mobile phones next to different head phantoms

In-network evaluation of mobile handset performance

Evaluation of a magnetic near field scanner

Effect of Human Body on 3-D Radiation Pattern and Efficiency of Mobile Handsets

Similar Documents

User effect on total radiated power and 3-D radiation pattern of mobile handsets

Comparison between radiation efficiencies of phone antennas and radiated power of mobile phones measured in anechoic chambers and reverberation chamber

Phantoms for radiation measurements of mobile phones

Radiations phantom for handheld phones

Validation of handset antenna test methods

Effect of the Human Body on Total Radiated Power and the 3-D Radiation Pattern of Mobile Handsets

Radiation pattern measurements of mobile phones next to different head phantoms

In-network evaluation of mobile handset performance

Evaluation of a magnetic near field scanner

Effect of Human Body on 3-D Radiation Pattern and Efficiency of Mobile Handsets