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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| MW | 2014-11-20 13:00 |
Nagasaki | Nagasaki Univ. | Oscillator's Q-Factor Analysis of a Varactor Diode Parallel Resonant Circuit with Parasitic Resistance Yoshitada Iyama (NIT, Kumamoto College)  MW2014-128 |
Active Q-factor formulas for a parallel resonance circuit which is incorporated in VCO have been derived. Q-factor calc... [more] | MW2014-128 pp.27-31 |
| ICD, ITE-IST | 2014-07-04 13:25 |
Shimane | Izumo-shi (Shimane) | [Invited Talk]
A study of enhancement of Q-factor of LC Resonators in high frequency region Nobuyuki Itoh, Yuka Itano, Hiroki Tsuji, Kiyotaka Komoku, Takayuki Morishita (Okayama Prefec. Univ.), Sadayuki Yoshitomi (Toshiba) ICD2014-24 |
An enhancement of Q-factor of LC resonators in millimeter wave and quasi-millimeter wave has been studied. Q-factor of L... [more] | ICD2014-24 pp.65-70 |
| AP | 2013-08-30 15:25 |
Kanagawa | Yokosuka | A Basic Study to Control Radio Wave Transmission with a Small Number of Varactor Kyoichi Iigusa, Hiroshi Harada (NICT) AP2013-78 |
We examine the method to realize sufficient transmission change of a radio wave shutter with a small number of varactor ... [more] | AP2013-78 pp.89-94 |
| EST, MWP, OPE, MW, EMT, IEE-EMT [detail] | 2013-07-19 09:00 |
Hokkaido | Wakkanai Synthesis Cultural Center | Experiment of Zeroth-Order Resonator with Voltage-Controlled Terminals Junko Fukuda, Tetsuya Ueda, Yuichi Kado (Kyoto Inst. of Tech.), Tatsuo Itoh (UCLA) MW2013-80 OPE2013-49 EST2013-44 MWP2013-39 |
Zeroth-order resonator with voltage-controlled reflectors at both ends is proposed and experimentally demonstrated. The ... [more] | MW2013-80 OPE2013-49 EST2013-44 MWP2013-39 pp.209-213 |
| MW | 2013-03-07 13:20 |
Hiroshima | Hiroshima Univ. | [Invited Talk]
A Study of Quality factor Improvement of LC-Resonator of Voltage-Controlled Oscillator for beyond quasi-millimeter-wave region Nobuyuki Itoh, Yuka Itano, Shotaro Morimoto (Okayama Prefec. Univ.) MW2012-175 |
Beyond quasi-millimeter-wave region, Q-factor of varactor is dominant part of Q-factor of resonator. In this study, the... [more] | MW2012-175 pp.87-91 |
| MW | 2012-11-22 11:45 |
Okinawa | Spatial Modulation Method Using Scatterers Embedded with FET-Switches Kohei Hasegawa, Ryo Ishikawa, Akira Saitou, Kazuhiko Honjo (UEC) MW2012-123 |
The spatially modulated communication method using dual scatterers was proposed to carry out microwave wireless power tr... [more] | MW2012-123 pp.57-62 |
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| MW | 2011-12-15 15:15 |
Yamaguchi | Yamaguchi University | Tunable Wave Absorber Using Resistive Film and Varactor Diode Loaded between Conductive Lines Yuki Tsuda, Osamu Hashimoto, Takenori Yasuzumi (Aoyama Gakuin Univ.) MW2011-129 |
In this paper, a tunable wave absorber using resistive film and varactor diode loaded between conductive lines is propos... [more] | MW2011-129 pp.21-26 |
| MW | 2011-12-16 09:30 |
Yamaguchi | Yamaguchi University | A Study on Ultra-Wideband Bandpass Filter with Tunable Notch-Band Masayoshi Kamada, Takenori Yasuzumi, Tomoki Uwano, Osamu Hashimoto (Aoyama Gakuin Univ.) MW2011-133 |
An ultra-wideband bandpass filter (UWB BPF) along with a tunable notch circuit is proposed in this paper. We have examin... [more] | MW2011-133 pp.41-46 |
| EMT, OPE, MW, IEE-EMT [detail] | 2010-07-29 15:50 |
Hokkaido | Hokkaido Univ. | An Experimental Study on Tunable Notch Filter Using Inductance Characteristics of Varactor Diodes Ryohei Monzen, Takenori Yasuzumi, Tomoki Uwano, Osamu Hashimoto (Aoyama Gakuin Univ.) MW2010-56 OPE2010-41 |
In this study, a tunable notch filter using variable inductance characteristics of a varactor diode for ultra-wide band ... [more] | MW2010-56 OPE2010-41 pp.129-133 |
| RCS, AP (Joint) |
2009-11-27 09:50 |
Tokyo | Tokyo Inst. of Tech. | Controlling of Impedance Matched Frequency by Loading Varactors and Proposal of Tunable Antenna Electromagnetically Fed by Wideband Antenna Kyoichi Iigusa, Hiroshi Harada (NICT) AP2009-130 |
A technique to enhance the impedance matched frequency of an antenna is studied to apply it for a cognitive wireless com... [more] | AP2009-130 pp.67-72 |
| MW | 2008-12-12 13:00 |
Toyama | Toyama-Univ. Gofuku-camp. | Tunable Low Pass Filter with Back to Back Varactor Diodes and Fixed Capacitors Yusuke Kitsukawa, Masatake Hangai, Morishige Hieda, Moriyasu Miyazaki (Mitsubishi Electric Co.Info.Tech.) MW2008-153 |
In this report, a tunable low pass filter with back to back varactor diodes and fixed capacitors is described. Conventi... [more] | MW2008-153 pp.41-45 |
| MW | 2008-12-12 13:25 |
Toyama | Toyama-Univ. Gofuku-camp. | An Experimental Study on Center Frequency Tunable Filter with Constant Bandwidth loaded Varactor Diodes Takenori Yasuzumi, Ryohei Monzen (Aoyama Gakuin Univ.), Tomoki Uwano (Office Uwano), Osamu Hashimoto (Aoyama Gakuin Univ.) MW2008-154 |
In this study，tunable BPF loaded by varactor diodes is proposed．The BPF takes the microstrip construction with capacitan... [more] | MW2008-154 pp.47-52 |
| MW, EMCJ | 2008-10-23 15:55 |
Yamagata | Yamagata Univ. | Spatially localized pulses in two-dimensional composite right- and left-handed transmission lines periodically loaded with Schottky varactors Toru Nakamichi, Koichi Narahara (Yamagata Univ.) EMCJ2008-65 MW2008-109 |
We review adaptive pulse control using spatially localized pulses in two-dimensional composite right- and left-handed (C... [more] | EMCJ2008-65 MW2008-109 pp.35-40 |
| SR | 2008-08-01 10:00 |
Tokyo | NICT (Koganei,-city Tokyo) | [Technology Exhibit]
Study on a Reconfigurable RF Frontend
-- A Band-Tunable Isolator -- Takayuki Furuta, Atsushi Fukuda, Hiroshi Okazaki, Shoichi Narahashi (NTTDoCoMo) SR2008-36 |
A reconfigurable RF front-end is a promising candidate for future multi-band mobile terminals. A band-tunable isolator ... [more] | SR2008-36 pp.119-122 |
| SCE, MW | 2008-04-22 09:20 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | - Yusuke Suga (UEC), Kenichi Ohta (TAIYO YUDEN), Koji Wada (UEC) SCE2008-2 MW2008-2 |
In this paper, a tunable wide-passband bandpass filter(BPF) with attenuation poles based on distributed tap-coupling res... [more] | SCE2008-2 MW2008-2 pp.7-12 |
| AP | 2007-12-13 15:15 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Directivity Characterization of 3-Element ESPAR Antenna as a Function of Reactance and Element Spacing Naoki Sakai, Hideyuki Uehara, Takashi Ohira (Toyohashi Univ of Tech) AP2007-120 |
This paper presents directivity variation of three-element ESPAR antenna calculated by the equivalent weight vector meth... [more] | AP2007-120 pp.29-34 |
| AP | 2007-05-18 14:15 |
Kochi | Kochi Univ. of Tech. | Proposal of Radio Wave Shutter Using Electrically Invisible Dipoles and Basic Study on Its Transparent and Shield Performance Kyoichi Iigusa (NICT/Tokyo Inst.of Techn.), Hiroshi Harada, Shuzo Kato (NICT), Jiro Hirokawa, Makoto Ando (TIT) AP2007-27 |
We propose a radio-wave shutter, which can switch electronically transparent state and shield state, using the mechanism... [more] | AP2007-27 pp.81-86 |
| RCS, AP, WBS, SR, MW, MoNA (Joint) |
2006-03-03 11:20 |
Kanagawa | YRP | A basic study about switch circuits for a 60-GHz band single port / multi-sector switching antenna Takuma Sawaya, Naoko Matsunaga, Makoto Taromaru, Takashi Ohira (ATR) |
We are studying about a new approach for a 60-GHz mm-wave sector switchable antenna for the gigabit rate wireless loca... [more] |
MW2005-178 pp.1-6 |
| EMCJ, MW | 2005-10-27 15:00 |
Akita | Akita University | The Higher-Frequency Wideband VCO with Triple Tuned Circuits Masaomi Tsuru, Kenji Kawakami, Kazuhiro Miyamoto, Masafumi Nakane, Moriyasu Miyazaki (Mitsubishi Electric Corp.) |
We proposed the wideband VCO with triple tuned circuits in C-Ku Band before, which consisted of an active device and var... [more] | EMCJ2005-89 MW2005-95 pp.53-55 |
| RCS, AP, WBS, MW, MoNA | 2005-03-02 13:50 |
Kanagawa | Yokosuka Research Park | Broadening the Bandwidth of the Planar ESPAR Antenna Using Parasitic Elements with Multiple Varactor Diodes Makoto Yamamoto, Kyouichi Iigusa, Takuma Sawaya, Makoto Taromaru, Takashi Ohira (ATR) |
The service of terrestrial digital broadcasting started, and it expanded the possibility of indoor reception. We have ap... [more] | WBS2004-67 AP2004-248 RCS2004-335 MoMuC2004-118 MW2004-245 pp.67-70 |
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