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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| EMCJ | 2010-04-23 15:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Optimal Settings of Frequency-Selective Devises Used for E-Field Measurements From a W-CDMA Base Station Ally Y. Simba, Lira Hamada, Soichi Watanabe (NICT)  EMCJ2010-10 |
Frequency-selective measurements with a spectrum analyzer are the most obvious means to accurately measure the power of ... [more] | EMCJ2010-10 pp.49-53 |
| AP | 2010-01-22 12:30 |
Yamaguchi | Yamaguchi University | SAR and Temperature Elevation Evaluation Using Japanese Anatomical Human Models for Body-Worn Devices Teruo Onishi, Takahiro Iyama (NTT DoCoMo), Lira Hamada, Soichi Watanabe, Akimasa Hirata (NICT) AP2009-173 |
10g average SAR (Specific Absorption Rate) and temperature evaluation are investigated using the Japanese numerical anat... [more] | AP2009-173 pp.105-108 |
| EMCJ | 2010-01-22 14:35 |
Okinawa | University of the Ryukyus | Expansion of the SAR-probe calibration system using the reference dipole antennas in head-simurating liquid Lira Hamada (NICT), Yukihiro Miyota, Ken-ichi Sato (NTT-AT), Nozomu Ishii (Niigata Univ), Soichi Watanabe (NICT) EMCJ2009-121 |
he SAR-probe is usually calibrated using a rectangular waveguide with a matching dielectric spacer above 800MHz and belo... [more] | EMCJ2009-121 pp.135-140 |
| ACT (2nd) |
2009-03-27 13:35 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Measurement and evaluation procedure of the SAR of mobile radio equipments Lira Hamada, Soichi Watanabe (NICT) |
The method of evaluating specific absorption rate (SAR) of the cellular phone is introduced. Standard measurement and pr... [more] | |
| ACT (2nd) |
2008-12-01 14:35 |
Kyoto | Doshisha Univ. (Imadegawa campus) | Gain Measurement of Sandwiched Dipole Antenna in the Tissue Equivalent Liquid at 5.2GHz Takashi Watanabe, Naoto Ikarashi (Niigata Univ.), Nozomu Ishii (Niigata Univ./NICT), Ken-ichi Sato (NTT-AT), Lira Hamada, Soichi Watanabe (NICT) |
[more] | |
| EMCJ | 2008-06-20 16:55 |
Hokkaido | Hokkaido Univ. | Estimation of Antenna Gain in the Liquid Using the Measured Data in the Far-Field Region by the Network Analyzer Naoto Ikarashi, Tsuyoshi Nagano (Niigata Univ.), Nozomu Ishii (Niigata Univ./NICT), Ken-ichi Sato (NTT-AT), Lira Hamada, Soichi Watanabe (NICT) EMCJ2008-24 |
The authors have been developed a technique for calibrating electric-field probes for the measurement of the Specific Ab... [more] | EMCJ2008-24 pp.99-104 |
| EMCJ | 2007-11-16 10:35 |
Tokyo | Tokyo Instutute of Technology | Study on the boundary effect in SAR measurement and probe calibration Lira Hamada (NICT), Atushi Tanaka (UEC), Ken-ichi Sato (NTT-AT), Soichi Watanabe, Yukio Yamanaka (NICT), Takashi Iwasaki (UEC) EMCJ2007-87 |
Since 2002, measurement of the SAR (Specific Absorption Rate) has been obligated in compliance test for mobile communica... [more] | EMCJ2007-87 pp.37-40 |
| EMCJ | 2007-05-25 13:05 |
Niigata | Niigata University | Uncertainty of simultaneous measurement of antenna gain in the liquid and its dielectric property including the contribution of the Fresnel-field Hiroki Shiga, Naoto Ikarashi (Niigata Univ.), Nozomu Ishii (Niigata Univ./NICT), Ken-ichi Sato (NTT-AT), Lira Hamada, Soichi Watanabe (NICT) EMCJ2007-10 |
As a technique for calibrating electric-field probes used in standardized SAR (Specific Absorption Rate) assessment, we ... [more] | EMCJ2007-10 pp.1-5 |
| EMCJ | 2007-01-26 09:45 |
Kagoshima | A new gain measurement of the reference antenna in the tissue equivalent liquid based on the Fresnel approximation Nozomu Ishii (Niigata Univ./NICT), Takuhei Akagawa, Naoto Ikarashi (Niigata Univ.), Ken-ichi Sato (NTT-AT), Lira Hamada, Soichi Watanabe (NICT) EMCJ2006-97 |
One of calibration techniques for a SAR probe used in the standard SAR measurement is based on the Friis transmission fo... [more] | EMCJ2006-97 pp.1-4 |
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| EMCJ | 2007-01-26 10:10 |
Kagoshima | Development of SAR probe calibration system in tissue-equivalent liquid using standard antenna Lira Hamada (NICT), Ken-ichi Sato (NTT-AT), Takuhei Akagawa (Niigata Univ.), Nozomu Ishii (Niigata Univ./NICT), Soichi Watanabe (NICT) EMCJ2006-98 |
The SAR-probe is usually calibrated using a rectangular waveguide with a matching dielectric spacer below 3 GHz. Howeve... [more] | EMCJ2006-98 pp.5-10 |
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| EMCJ | 2006-07-27 13:15 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | An evaluation of systematic uncertainty of measuring antenna gain in the liquid for SAR probe calibration Hiroki Shiga, Takuhei Akagawa (Niigata Univ.), Nozomu Ishii (Niigata Univ./NICT), Ken-ichi Sato (NTT-AT), Lira Hamada, Soichi Watanabe (NICT) EMCJ2006-26 |
The SAR probe is often calibrated by use of the waveguide and the matching dielectric slab below 3GHz. However, the diam... [more] | EMCJ2006-26 pp.47-50 |
| AP, SAT (Joint) |
2006-07-06 10:00 |
Hiroshima | Hiroshima Institute of Technology | 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 |
To estimate the SAR (Specific Absorption Ratio) of the mobile communication device above 3GHz, an alternative method for... [more] | AP2006-39 pp.1-6 |
| EMCJ | 2006-04-18 14:55 |
Tokyo | Aoyama Gakuin Univ. (Aoyama Campus) | A gain measurement of antennas in the tissue equivalent liquid for the SAR-probe calibration Takuhei Akagawa (Niigata Univ.), Nozomu Ishii (Niigata Univ./NICT), Ken-ichi Sato (NTT-AT), Lira Hamada, Soichi Watanabe (NICT) EMCJ2006-5 |
The SAR probe is usually calibrated by a rectangular waveguide with a matching dielectric spacer below 3 GHz. However, t... [more] | EMCJ2006-5 pp.25-29 |
| EMCJ | 2005-11-25 16:45 |
Tokyo | NTT Musashino Research and Development Center | Probe calibration system for SAR measurement and evaluation of calibration uncertainty 2
-- 1450MHz/1950MHz system and depth effect of tissue equivalent liquid on calibration -- Kazuhiro Aikyo, Sigeo Seo (TELEC), Lira Hamada, Soichi Watanabe, Takashi Shinozuka, Yukio Yamanaka (NICT), Yoshiaki Ichino (TELEC) |
[more] | EMCJ2005-112 pp.33-38 |
| EMCJ | 2005-11-25 17:10 |
Tokyo | NTT Musashino Research and Development Center | A study on SAR measurement methods of handset of wireless communication device in standard Lira Hamada (NICT), Yukihiro Miyota, Ken-ichi Sato (NTT-AT), Soichi Watanabe (NICT), Takashi Iwasaki (UEC) |
Since 2002, measurement of the SAR (Specific Absorption Rate) has been obligated in compliance test for mobile communica... [more] | EMCJ2005-113 pp.39-44 |
| EMCJ | 2005-06-10 14:55 |
Hokkaido | Hokkaido University | A theoretical study on a gain measurement of the reference antenna in the tissue equivalent liquid to calibrate the SAR probe
-- A simulation of the gain measurement of an half-wavelength dipole by the method of moment -- Nozomu Ishii (Niigata Univ.), Ken-ichi Sato (NTT-AT), Lira Hamada, Soichi Watanabe (NICT) |
The SAR probe is often calibrated by use of the waveguide and the matching dielectric slab below 3GHz. However, the diam... [more] | EMCJ2005-39 pp.103-107 |
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