| IEICE Technical Committee Submission System Conference Paper's Information |
Online Proceedings [Sign in] Tech. Rep. Archives |
| Go Top Page | Go Previous | [Japanese] / [English] |
| Paper Abstract and Keywords | ||
| Presentation | 2006-07-06 10:00 Determination of the antenna gain in the liquid using the measured near-field data Nozomu Ishii (Niigata Univ./NICT), Takuhei Akagawa (Niigata Univ.), Ken-ichi Sato (NTT-AT), Lira Hamada, Soichi Watanabe (NICT)  AP2006-39 |
|
| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | To estimate the SAR (Specific Absorption Ratio) of the mobile communication device above 3GHz, an alternative method for calibrating the SAR probe is required in place of the conventional calibration using the waveguide system and has been developed by the authors. In our calibration, a reference antenna whose gain is calibrated is immersed in the liquid, and then the electric field intensity radiated from the antenna is related to the output voltage of the SAR probe on the basis of the Friis transmission equation. However, the electric field is significantly attenuated in the liquid and it is difficult to calibrate the antenna gain in the far-field region, where the Friis transmission equation is valid. To overcome the difficulty, we try to use the modified Friis transmission equation in the near-field region, where one antenna can receive the signal from the other antenna in the liquid. In this paper, we show some results of estimating the antenna gain from the near-field data and check the validity of the modified Friis transmission equation. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | SAR / antenna / near-field / absolute gain / Friis transmission equation / tissue equivalent liquid / / | |
| Reference Info. | IEICE Tech. Rep., vol. 106, no. 140, AP2006-39, pp. 1-6, July 2006. | |
| Paper # | AP2006-39 | |
| Date of Issue | 2006-06-29 (AP) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | AP2006-39 |
|
| Conference Information | |
| Committee | AP SAT |
| Conference Date | 2006-07-06 - 2006-07-07 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hiroshima Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Satellite Communications, Antennas and Progation, etc. |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2006-07-AP-SAT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Determination of the antenna gain in the liquid using the measured near-field data |
| Sub Title (in English) | |
| Keyword(1) | SAR |
| Keyword(2) | antenna |
| Keyword(3) | near-field |
| Keyword(4) | absolute gain |
| Keyword(5) | Friis transmission equation |
| Keyword(6) | tissue equivalent liquid |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Nozomu Ishii |
| 1st Author's Affiliation | Niigata University/National Institute of Information and Communications Technology (Niigata Univ./NICT) |
| 2nd Author's Name | Takuhei Akagawa |
| 2nd Author's Affiliation | Niigata University (Niigata Univ.) |
| 3rd Author's Name | Ken-ichi Sato |
| 3rd Author's Affiliation | NTT Advanced Technology Corporation (NTT-AT) |
| 4th Author's Name | Lira Hamada |
| 4th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 5th Author's Name | Soichi Watanabe |
| 5th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 6th Author's Name | |
| 6th Author's Affiliation | () |
| 7th Author's Name | |
| 7th Author's Affiliation | () |
| 8th Author's Name | |
| 8th Author's Affiliation | () |
| 9th Author's Name | |
| 9th Author's Affiliation | () |
| 10th Author's Name | |
| 10th Author's Affiliation | () |
| 11th Author's Name | |
| 11th Author's Affiliation | () |
| 12th Author's Name | |
| 12th Author's Affiliation | () |
| 13th Author's Name | |
| 13th Author's Affiliation | () |
| 14th Author's Name | |
| 14th Author's Affiliation | () |
| 15th Author's Name | |
| 15th Author's Affiliation | () |
| 16th Author's Name | |
| 16th Author's Affiliation | () |
| 17th Author's Name | |
| 17th Author's Affiliation | () |
| 18th Author's Name | |
| 18th Author's Affiliation | () |
| Speaker | 1 |
| Date Time | 2006-07-06 10:00:00 |
| Presentation Time | 25 |
| Registration for | AP |
| Paper # | IEICE-AP2006-39 |
| Volume (vol) | IEICE-106 |
| Number (no) | no.140 |
| Page | pp.1-6 |
| #Pages | IEICE-6 |
| Date of Issue | IEICE-AP-2006-06-29 |
[Return to Top Page]