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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP | 2023-02-17 15:20 |
Miyagi | Tohoku University, Aobayama Campus (Primary: On-site, Secondary: Online) |
Study on Gain Enhancement of Dual-Polarized Base Station Array Antenna in Sub-6 Band Junyi Xu, Sirao Wu, Qiang Chen (Tohoku Univ.)  AP2022-230 |
As base station antennas for Sub-6 communication systems, high gain antennas with omni-directionality in the horizontal ... [more] | AP2022-230 pp.184-187 |
| WPT (2nd) |
2022-12-05 - 2022-12-06 |
Kyoto | Uji Obaku Plaza Kihada Hall, Uji Campus, Kyoto University (Primary: On-site, Secondary: Online) |
Design of High Gain Omnidirectional Base Station Antenna for Sub-6 Band Junyi Xu, Sirao Wu, Qiang Chen (Tohoku Univ.) |
Base station antennas for Sub-6 communication systems require omnidirectional and highly directional radiation patterns.... [more] | |
| AP | 2021-06-17 13:50 |
Online | Online | Prototype of Multi band orthogonal polarization and Angle MIMO antenna in cellular system Masayuki Nakano, Yoshiaki Amano (KDDI Research, Inc) AP2021-21 |
We devised a small, low-profile multi-band MIMO antenna for cellular band such as indoor base stations that supports m... [more] |
AP2021-21 pp.13-18 |
| AP | 2020-12-17 15:40 |
Online | Online | Small sized and low profile of Multi band orthogonal polarization MIMO antenna in cellular system Masayuki Nakano (KDDI Research Inc.) AP2020-102 |
In cellular system, on 800MHz band vertical polarization monopole antenna with , and tilt deformation horizontal polariz... [more] | AP2020-102 pp.33-38 |
| AP, RCS (Joint) |
2017-11-09 09:00 |
Fukuoka | Fukuoka University | A-low profile surface wave antenna for unidirectional beam pattern in horizontal plane Tohko Nishiyama, Takeshi Fukusako (Kumamoto Univ.) AP2017-122 |
A surface wave antenna having an antenna gain of 6.80 dBi and an FB ratio of 15.44 dBi at 8.4 GHz is presented. This ant... [more] | AP2017-122 pp.77-80 |
| AP, RCS (Joint) |
2017-11-09 09:25 |
Fukuoka | Fukuoka University | A Low-profile Antenna with Multi-directional Beam Pattern Using Loop Elements Nobuhiro Imaizumi, Takeshi Fukusako (Kumamoto Univ.) AP2017-123 |
A low-profile antenna with bi-bidirectional beam pattern using loop elements has been proposed. In this study, a low-pro... [more] | AP2017-123 pp.81-84 |
| OCS, OPE, LQE | 2014-10-30 15:05 |
Nagasaki | Nagasaki Museum of History and Culture | All-Optical 2-bit Recognition and Packet Switching Using Polarization Bistable VCSELs Daisuke Hayashi, Kazuya Nakao, Takeo Katayama, Hitoshi Kawaguchi (NAIST) OCS2014-62 OPE2014-106 LQE2014-80 |
We demonstrated all-optical 2-bit recognition and packet switching using two 1.55-$mu$m polarization bistable VCSELs. Po... [more] | OCS2014-62 OPE2014-106 LQE2014-80 pp.107-112 |
| OPE, LQE, CPM, EMD, R | 2013-08-30 14:20 |
Hokkaido | sun-refre Hakodate | Optical Packet Switching by All-Optical Header Recognition Using Polarization Bistable VCSEL Takeo Katayama, Hitoshi Kawaguchi (NAIST) R2013-57 EMD2013-63 CPM2013-82 OPE2013-86 LQE2013-56 |
We investigated an optical packet switching system based on the all optical header processing using a 1.55-μm polarizati... [more] | R2013-57 EMD2013-63 CPM2013-82 OPE2013-86 LQE2013-56 pp.143-146 |
| AP | 2012-06-14 13:50 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Pattern-bandwidth enhancement of the omnidirectional antenna composed of two-panel patch elements Takahiro Wada, Daijiro Ishibashi, Nobuhiro Kuga (Yokohama Nat'l Univ.) AP2012-26 |
This paper discusses the pattern-bandwidth enhancement of the omnidirectional-pattern antenna composed of two-panel pat... [more] |
AP2012-26 pp.13-18 |
| AP | 2011-01-21 14:40 |
Saga | Saga Univ. | A Consideration on the WiMAX Antenna with Diversity Function Koumei Sato, Takayasu Shiokawa (Tohoku Gakuin Univ) AP2010-158 |
Recently，the WiMAX in addition to WLAN becomes attractive for personal communications．As for the service area in both co... [more] | AP2010-158 pp.147-152 |
| EMD, OPE, LQE, CPM | 2010-08-26 15:50 |
Hokkaido | Chitose Arcadia Plaza | Ultrafast all-optical memory operation using a polarization bistable VCSEL Takeo Katayama, Jun Sakaguchi, Hitoshi Kawaguchi (NAIST) EMD2010-37 CPM2010-53 OPE2010-62 LQE2010-35 |
Ultrafast all-optical memory operation was experimentally demonstrated using a 980-nm polarization-bistable vertical-cav... [more] | EMD2010-37 CPM2010-53 OPE2010-62 LQE2010-35 pp.53-56 |
| OPE, EMT, LQE, PN, IEE-EMT | 2010-01-29 17:05 |
Kyoto | VCSEL behavior under optical-feedback with polarization rotation and its application to in-line rotation sensor Shinichiro Shoda, Kenzo Nishio, Yasuhiro Awatsuji, Shogo Ura (Kyoto Inst. of Tech.) PN2009-65 OPE2009-203 LQE2009-185 |
Lasing behavior of single-transverse-mode VCSEL was investigated when optical-feedback polarization was rotated. The opt... [more] | PN2009-65 OPE2009-203 LQE2009-185 pp.161-166 |
|
| LQE | 2009-12-11 15:40 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Investigation of optical buffers based on polarization bistable VCSELs for high switching-speed operation Jun Sakaguchi, Takeo Katayama, Hitoshi Kawaguchi (Nara Inst. of Sci and Tech.) LQE2009-150 |
Ultrafast operation of all-optical buffer memories based on the polarization bistability of vertical-cavity surface-emit... [more] | LQE2009-150 pp.61-66 |
| RCS, AP (Joint) |
2009-11-26 15:40 |
Tokyo | Tokyo Inst. of Tech. | Evaluation on relay MIMO using orthogonal polarization in an actual outdoor environment
-- Channel capacity considering heterogeneous pathloss conditions -- Kentaro Nishimori (Niigata Univ.), Tomoki Murakami (NTT), Naoki Honma (Iwate Univ.), Riichi Kudo, Masato Mizoguchi (NTT) AP2009-125 RCS2009-147 |
MIMO transmission using relay station is effective when enlarging service area and improving frequency utilization. The ... [more] | AP2009-125 RCS2009-147 pp.37-42(AP), pp.85-90(RCS) |
| OPE, LQE, OCS | 2009-10-22 10:15 |
Fukuoka | Switching of lasing circular polarizations in a spin VCSEL on GaAs (110) Kazuhiro Ikeda, Shinji Koh, Takeo Katayama, Hitoshi Kawaguchi (Nara Inst. of Sci. and Tech.) OCS2009-44 OPE2009-110 LQE2009-69 |
Spin vertical-cavity surface-emitting lasers (Spin VCSELs) are expected to have potential applications such as quantum i... [more] | OCS2009-44 OPE2009-110 LQE2009-69 pp.15-20 |
|
| OPE, EMD, CPM, LQE | 2009-08-20 17:05 |
Miyagi | Optically pumped circularly polarized lasing in a vertical-cavity surface-emitting laser on GaAs (110) Shinji Koh, Hiroshi Fujino, Hitoshi Kawaguchi (Nara Inst. of Sci and Tech.) EMD2009-42 CPM2009-66 OPE2009-90 LQE2009-49 |
Electron spin polarization in the active layers of semiconductor lasers can lead to circularly polarized lasing via the ... [more] | EMD2009-42 CPM2009-66 OPE2009-90 LQE2009-49 pp.83-88 |
|
| AP | 2009-03-09 13:55 |
Overseas | University of Macau | Planar ring patch antenna with vertical ring for circularly polarization Hang Wong, Kwok Kan So, Kwai Man Luk (City Univ. of Hong Kong) AP2008-216 |
This paper presents a new small circularly-polarized (CP) antenna element composed by a microstrip ring patch (MRP) and ... [more] | AP2008-216 pp.29-32 |
| EMT, LQE, OPE, PN | 2008-01-29 10:45 |
Osaka | Emergence of new fundamental mode oscillating at feedback-light position in three-mode VCSEL Daisuke Nii, Chikara Ito, Kenzo Nishio, Yasuhiro Awatsuji, Shogo Ura (Kyoto Inst. Tech.), Kenji Kintaka (AIST) PN2007-58 OPE2007-166 LQE2007-144 |
The optical intensity profiles of VCSEL emissions were observed while the polarization and intensity distribution of the... [more] | PN2007-58 OPE2007-166 LQE2007-144 pp.117-122 |
|
| PN | 2007-03-06 15:30 |
Kagoshima | Yakushima-Kankyou-Bunkamura-Center (Yakushima) | [Fellow Memorial Lecture]
The progress in semiconductor optical nonlinear functional devices Hitoshi Kawaguchi (NAIST) PN2006-93 |
The progress in semiconductor optical nonlinear functional devices, especially in optical bistable devices, is reviewed.... [more] | PN2006-93 pp.49-52 |
| AP | 2006-08-24 11:10 |
Niigata | Toki Messe(Niigata) | Rake Shape Antenna for Angle Diversity by Reactance Control
-- Proposal and Study of Low Profile Vertically Polarized Veriable Antenna -- Kyoichi Iigusa, Katsuyoshi Sato, Hiroshi Harada (NICT) AP2006-61 |
We propose a vertically-polarized low profile antenna which can be used for angle diversity by reactance control. For ea... [more] | AP2006-61 pp.23-28 |
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