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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| MW | 2024-03-01 11:20 |
Okayama | Okayama Prefectural University (Primary: On-site, Secondary: Online) |
A Study on Dispersion Characteristics for a nonreciprocal CRLH-TL consisting of an Even Number of Unit Cells Tomohiro Maruyama, Nozomu Fujikawa, Koichiro Sakaguchi, Mitsuyoshi Kishihara, Kensuke Okubo (Okayama Pref Univ)  MW2023-191 |
Circuit analysis of our proposing nonreciprocal CRLH-TL consisting of an even number of unit cells are performed. Althou... [more] | MW2023-191 pp.84-88 |
| EMT, IEE-EMT | 2023-11-11 09:30 |
Yamaguchi | Kaikyo Messe Shimonoseki | EMT2023-83 |
By introducing phase reversal in the 1.5-wavelength rat-lace circuit and incorporating the CRLH-TL right-handed-left com... [more] | EMT2023-83 pp.114-119 |
| MW | 2023-05-19 13:50 |
Kyoto | Ritsumeikan University (Primary: On-site, Secondary: Online) |
Electronic Control of Nonreciprocity in CRLH Metamaterial Transmission Lines Hidefumi Yasuda, Tetsuya Ueda (KIT) MW2023-19 |
In this work, electronic control of nonreciprocity in a normally magnetized ferrite composite right/left-handed (CRLH) t... [more] | MW2023-19 pp.55-59 |
| EMT, IEE-EMT | 2022-11-18 09:30 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
Compact 7λ/6 rat-race coupler consisting of λ/6 CRLH-TLs with short-circuit stubs at both ends Tomoya Shigemura, Mikio Tsuji, Hiroyuki Deguchi (Doshisha Univ.) EMT2022-68 |
Left-handed artificial media have different directions of phase velocity and group velocity, and are expected to be appl... [more] | EMT2022-68 pp.133-138 |
| EMT, IEE-EMT | 2022-11-18 10:20 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
Equivalent Circuit of 2-D Nonreciprocal Metamaterials Hidefumi Yasuda, Tetsuya Ueda (KIT) EMT2022-62 |
In this work, we propose an equivalent circuit model for 2-D nonreciprocal metamaterials. A transmission matrix was deri... [more] | EMT2022-62 pp.99-104 |
| MW | 2022-11-15 10:50 |
Nagasaki | Fukue-Bunka-Kaikan (Primary: On-site, Secondary: Online) |
Continuous Class-F/Inverse-Class-F 2-GHz-Band GaN-HEMT Power Amplifiers Using 1-Port CRLH Transmission Lines Eri Tsuji, Soshi Aonuma, Shinichi Tanaka (Shibaura Inst. of Tech.) MW2022-109 |
Highly efficient amplifiers capable of continuously processing harmonics over a wide bandwidth are attracting attention ... [more] | MW2022-109 pp.1-6 |
| MW | 2022-11-15 11:15 |
Nagasaki | Fukue-Bunka-Kaikan (Primary: On-site, Secondary: Online) |
Bandwidth Improvement of Power Amplifier Using Dispersion Engineering of 1-Port CRLH Transmission Line Ryota Mogami, Eri Tsuji, Shinichi Tanaka (Shibaura Inst. of Tech.) MW2022-110 |
In our previous paper, we reported a power amplifier using a 1-port CRLH transmission line (TL) as a harmonic tuning cir... [more] | MW2022-110 pp.7-12 |
| MW | 2022-05-19 15:40 |
Kyoto | Kyoto Univ. (Primary: On-site, Secondary: Online) |
[Invited Talk]
Optimization Design by Genetic Algorithm for Microwave Circuits and Elements Mikio Tsuji, Hiroyuki Deguchi (Doshisha Univ.), Daichi Higashi MW2022-14 |
This talk presents optimizations for microwave circuits composed of arbitrary-shaped elements using a genetic algorithm ... [more] | MW2022-14 p.2 |
| MW | 2021-12-16 13:50 |
Kanagawa | Kawasaki City Industrial Promotion Hall (Primary: On-site, Secondary: Online) |
A Phase Shifter Composed of Reduced-Size Rat-Race Coupler with CRLH Transmission Lines and Resonating Reactance Circuits Masashi Nakatsugawa, Fusuke Kurotani, Yuya Chiba, Takuro Ito, Tamami Maruyama (NIT, Hakodate College) MW2021-89 |
An analog phase shifter that could continuously operate more than 180-degree phase-shift range was proposed and fabricat... [more] | MW2021-89 pp.25-30 |
| AP, RCS (Joint) |
2021-11-11 09:55 |
Nagasaki | NBC-Bekkan (Nagasaki) (Primary: On-site, Secondary: Online) |
Prototype Evaluation of Frequency Dispersive Phase Shifter for Dual Band Base Station Antenna Toshiki Soma, Keizo Cho (Chiba Inst. Tech.), Naobumi Michishita (National Defense Academy), Takayoshi Sasaki, Keisuke Sato, Ichiro Oshima (DKK), Hiroaki Nakabayashi (Chiba Inst. Tech.) AP2021-110 |
Multi-band base station antennas have the problem that interference to adjacent areas increases in the low frequency ban... [more] | AP2021-110 pp.56-60 |
| MW, AP (Joint) |
2021-09-09 13:25 |
Online | Online | Broadband Left-Handed Region of CRLH-TL Using an Ω-Shaped Interdigital Capacitive Gap Tetsuhiro Takada, Mikio Tsuji, Hiroyuki Deguchi (Doshisha Univ.) MW2021-34 |
Various structures have been proposed to expand the left-handed region of the right-handed/left-handed combined transmis... [more] | MW2021-34 pp.6-11 |
| MW, AP (Joint) |
2021-09-09 14:00 |
Online | Online | Matching Circuit Design of Frequency Dispersive Phase Shifter for Dual Band Base Station Antenna Toshiki Soma, Keizo Cho (Chiba Inst. Tech.), Naobumi Michishita (National Defense Academy), Takayoshi Sasaki, Keisuke Sato, Ichiro Oshima (DKK), Hiroaki Nakabayashi (Chiba Inst. Tech.) AP2021-56 |
In a base station antenna that shares multiple frequency bands, The direction of radiation is the same in the shared fre... [more] | AP2021-56 pp.1-5 |
| MW, AP (Joint) |
2021-09-09 15:25 |
Online | Online | [Tutorial Lecture]
Electromagnetic Metamaterial-based Transmission Line Resonators and Their Antenna Applications Tetsuya Ueda (Kyoto Inst. Tech.) AP2021-59 |
We review electromagnetic metamaterial-based transmission line resonators and their applications to leaky wave antennas.... [more] | AP2021-59 pp.14-17 |
| AP, SANE, SAT (Joint) |
2021-07-29 10:50 |
Online | Online | Planar Sleeve Antenna with Choke Structure Composed of Zeroth-Order Resonator Keisuke Sakakibara, Hiroshi Hashiguchi, Naobumi Michishita, Hisashi Morishita (National Defense Academy) AP2021-34 |
A choke structure is required to suppress the leakage current of the sleeve antenna. The miniaturized sleeve antenna has... [more] | AP2021-34 pp.61-64 |
| MW | 2020-11-19 13:05 |
Online | Online | Harmonic tuning circuit using 1-port CRLH transmission line and its application to power amplifiers Naoaki Iisaka, Shinichi Tanaka (SIT) MW2020-65 |
With the spread of next-generation mobile communication systems, high efficiency and miniaturization of base station amp... [more] | MW2020-65 pp.1-5 |
| AP, RCS (Joint) |
2019-11-21 11:20 |
Saga | Saga Univ. | Equivalent circuit parameters reducing beam squint of left-handed leaky wave antenna Kazuki Terada, Keizo Cho, Hiroaki Nakabayashi (CIT), Naobumi Michishita (NDA), Ichiro Oshima (DKK) AP2019-122 |
A rod-like leaky wave antenna composed of CRLH transmission lines has been proposed as a base station antenna for small ... [more] | AP2019-122 pp.91-94 |
| MW | 2019-11-14 17:05 |
Okinawa | Minami Daido Villa. Tamokuteki Koryu Center | Multifunctional CRLH Transmission Line Stubs for Compact Class-E/Inverse-Class-E Power Amplifiers Hirotaka Asami, Shinichi Tanaka (Shibaura Inst. of Tech.) MW2019-109 |
This report presents CRLH transmission line (TL) stubs for realizing compact high-efficiency class-E / inverse class-E p... [more] | MW2019-109 pp.53-58 |
| AP (2nd) |
Overseas | Hotel Istana, Kuala Lumpur | Phase Variation Analysis of Leaky Wave Antenna Composed of CRLH Transmission Line Using Equivalent Circuit Kazuki Terada, Keizo Cho, Hiroaki Nakabayashi (CIT), Naobumi Michishita (NDA), Takayoshi Sasaki, Keisuke Sato, Ichiro Oshima (DKK) |
A leaky wave antenna configured by CRLH transmission lines has been proposed. There is a problem that the direction of t... [more] | ||
| AP | 2019-02-22 14:25 |
Osaka | Sumitomo Electric Industries (Osaka Works) | [Invited Lecture]
CRLH Transmission Line Leaky Wave Antenna with Dual Band and Dual Polarized Wave by Grounded Coplanar Transmission Line Takayoshi Sasaki, Keisuke Sato, Ichiro Oshima (DKK), Naobumi Michishita (NDA), Keizo Cho (CIT) AP2018-183 |
The authors have developed a left-handed leaky wave sector antenna with a grounded coplanar line so far. In this report,... [more] | AP2018-183 pp.77-82 |
| MW | 2018-11-15 10:00 |
Nagasaki | Fukue Cultural Hall | 2-GHz-Band GaN HEMT Class-F Power Amplifiers Using CRLH-Transmission-Line-Stub Dual-Use Circuits for Harmonic Control and DC Biasing Tomoya Oda, Kento Saiki, Shinichi Tanaka (Shibaura Inst. of Tech.) MW2018-92 |
The next generation mobile communication systems impose challenging performance, size and cost requirements on the power... [more] | MW2018-92 pp.1-6 |
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