DocumentCode
2771157
Title
An analysis of the normal mode helical antenna close to the human abdomen in the VHF-band
Author
Koyanagi, Yoshio ; Ogawa, Koichi ; Asahina, Toshihiro ; Ito, Kei
Author_Institution
Personal Commun. Div., Matsushita Commun. Ind. Co. Ltd., Yokohama, Japan
fYear
2000
fDate
15-18 Aug. 2000
Firstpage
354
Lastpage
357
Abstract
An analysis of the performance of the normal mode helical antenna for portable radio terminals, close to the human abdomen has been performed. In the VHF-band it is shown that the impedance mismatch loss is the major contributory factor to the total power loss and it must be taken into account when calculating the radiation efficiency of the antennas.
Keywords
VHF antennas; antenna radiation patterns; electric impedance; helical antennas; mobile antennas; 150 MHz; VHF-band; human abdomen; impedance mismatch loss; normal mode helical antenna; portable radio terminals; radiation efficiency; total power loss; Abdomen; Biological system modeling; Biological tissues; Circuits; Communication industry; Dipole antennas; Helical antennas; Humans; Impedance matching; Surface impedance;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas, Propagation and EM Theory, 2000. Proceedings. ISAPE 2000. 5th International Symposium on
Conference_Location
Beijing, China
Print_ISBN
0-7803-6377-9
Type
conf
DOI
10.1109/ISAPE.2000.894797
Filename
894797
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