Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
WPT |
2024-03-14 16:25 |
Kyoto |
Kyoto-Univ. (Uji campus) (Primary: On-site, Secondary: Online) |
Study on Performance with Coupler Structures for Reflection Phase Shifters Tsuyoshi Kajiwara, Bo Yang, Naoki Shinohara, Tomohiko Mitani (Kyoto Univ.) WPT2023-45 |
In this study, we investigated the impact of changing the hybrid coupler used in a reflective phase shifter on its perfo... [more] |
WPT2023-45 pp.55-58 |
MW |
2018-12-14 10:10 |
Kanagawa |
Kanagawa Univ. |
Design of Broadband Branch-Line Coupler with Loose Coupling Utilizing Coupled-Transmission Lines at Ka-Band Yuya Haoka, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo) MW2018-129 |
This paper describes broadband branch-line couplers (BLCs) with arbitrary power split ratios at Ka-band. The coupler has... [more] |
MW2018-129 pp.87-91 |
MW |
2014-03-04 11:50 |
Ehime |
Ehime University |
Design of Broadband Branch-Line Hybrid with Loose Coupling Utilizing Open-/Short-Circuited Coupled Transmission Lines Nobuo Nakajima, Tadashi Kawai, Akira Enokihara, Isao Ohta (Univ. of Hyogo), Kei Satoh, Yasunori Suzuki, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) MW2013-201 |
This paper describes broadband branch-line hybrids with loose coupling factors utilizing open-/short-circuited coupled t... [more] |
MW2013-201 pp.23-27 |
MWP, EMT, PN, LQE, OPE, EST, IEE-EMT [detail] |
2014-01-23 17:40 |
Kyoto |
Doshisha University |
Branch-Line-Couplers with Miniaturized Configuration Designed on LiNbO3 Substrate and their Application to Electro-optic SSB Modulators Katsuyuki Yamamoto, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo), Tetsuya Kawanishi (NICT) PN2013-49 OPE2013-163 LQE2013-149 EST2013-98 MWP2013-69 |
The miniaturized branch-line coupler (BC) circuits were designed onto LiNbO3 substrates by two methods of using periodic... [more] |
PN2013-49 OPE2013-163 LQE2013-149 EST2013-98 MWP2013-69 pp.81-86 |
PN, EMT, LQE, OPE, MWP, EST, IEE-EMT [detail] |
2013-01-25 16:35 |
Osaka |
Osaka Univ. (Suita) |
Electro-optic SSB modulator integrated with coplanar waveguide type branch-line coupler Kazuyo Kawamura, Takeshi Nakao, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo), Tetsuya Kawanishi (NICT) PN2012-71 OPE2012-180 LQE2012-172 EST2012-107 MWP2012-89 |
Optical SSB modulation by the electro-optic modulator requires two modulation signals with π/2 phase difference, which a... [more] |
PN2012-71 OPE2012-180 LQE2012-172 EST2012-107 MWP2012-89 pp.283-288 |
MW |
2012-10-18 13:25 |
Tochigi |
Utsunomiya Univ. |
A Broadband Branch-Line Coupler Using Short-Circuited Slotline Stubs on Ground Plane Nobuo Nakajima, Tadashi Kawai, Isao Ohta, Akira Enokihara (Univ. of Hyogo) MW2012-90 |
A branch-line hybrid plays an important role in microwave and millimeter-wave circuit system. However, its operation ban... [more] |
MW2012-90 pp.53-57 |
ED, MW |
2012-01-11 15:20 |
Tokyo |
Kikai-Shinko-Kaikan Bldg |
Multi-stage Balanced RF Rectifier Circuit Kota Yamada, Takashi Arakawa, Masamune Takeda, Jun Uemura (Maspro), Kunio Sakakibara, Nobuyoshi Kikuma (Nagoya Inst. of Tech.), Takashi Ohira (Toyohashi Univ. Tech.) ED2011-127 MW2011-150 |
High-efficiency rectifier circuits are getting expected for use in a variety of emerging RF applications such as wireles... [more] |
ED2011-127 MW2011-150 pp.47-52 |
MW |
2011-10-20 14:30 |
Tokyo |
The University of Electro-Communications |
Design and Analysis of Tunable and Reduced-Size Branch-Line 3dB Hybrid Satoshi Kondo (GNCT), Hajime Kondo (CHUO ELEC.), Hitoshi Ishida (GNCT) MW2011-94 |
In this paper, the authors make a study on tunable and reduced-size branch-line 3dB hybrid. Tuning capacitors are employ... [more] |
MW2011-94 pp.45-50 |
MW |
2010-11-25 14:55 |
Okinawa |
Tiruru |
Band-Broadening Design Method of Branch-Line Coupler Utilizing Coupled-Transmission Lines Hiroki Taniguchi, Tadashi Kawai, Isao Ohta, Akira Enokihara (Univ. of Hyogo) MW2010-109 |
In this paper we treat band-broadening design method of branch-line coupler utilizing external matching networks compose... [more] |
MW2010-109 pp.21-26 |
MW |
2010-05-14 09:30 |
Hyogo |
University of Hyogo |
Microstrip Broadband Branch-Line Coupler Utilizing Open-Circuited Series Stubs Hiroki Taniguchi, Tadashi Kawai, Isao Ohta, Akira Enokihara (Univ. of Hyogo) MW2010-20 |
This paper treats broadband branch-line coupler with arbitrary power split ratios utilizing microstrip series stubs whic... [more] |
MW2010-20 pp.35-38 |
OPE, EMT, MW |
2009-07-31 09:00 |
Hokkaido |
Asahikawa Civic Culture Hall |
Super-Compact High-Perfomace Devices Based on Mulit-Layered CRLH Transmission Lines Yasushi Horii, Toshiaki Kitamura (Kansai Univ.) MW2009-66 OPE2009-66 |
As one of approaches to realize left-handed metamaterials, a composite right/left-handed (CRLH) transmission line (TL) i... [more] |
MW2009-66 OPE2009-66 pp.195-200 |
MW |
2007-12-18 15:25 |
Fukui |
Fukui Univ. |
Size-Reduction of 3-dB Branch-Line Couplers with Stubs Junya Shibata, Yuki Andoh, Hiroshi Nakamura, Hiroya Andoh, Touko Sugiura, Takehiko Tsukamoto (TNCT) MW2007-134 |
An open-ended stub which is attached to a transmission line at the center reduces the length of the transmission line. T... [more] |
MW2007-134 pp.41-46 |
MW |
2007-12-18 15:50 |
Fukui |
Fukui Univ. |
A Planar Waveguide Orthomode Transducer with Branch-Lines suitable for End-Milling Process Hiroya Andoh, Tomoko Yanagi, Shoji Atono, Takehiko Tsukamoto, Touko Sugiura (Toyota National Coll. of Tech.) MW2007-135 |
A planar ortho-mode transducer with branch-lines is designed and calculated. The ortho-mode transducer has an insertion ... [more] |
MW2007-135 pp.47-51 |
MW |
2007-05-21 13:30 |
Hyogo |
University of Hyogo |
Tri-Band/Broadband Matching Techniques for 3-dB Branch-Line Couplers Sadami Tanigawa (Univ. of Hyogo), Kunihiko Hayashi (Hanshin Electric), Takao Fujii, Isao Ohta, Tadashi Kawai (Univ. of Hyogo) MW2007-12 |
This paper presents design methods of 3-dB branch-line couplers operating at two arbitrary frequencies and the centre of... [more] |
MW2007-12 pp.1-5 |
MW |
2006-05-18 15:10 |
Shiga |
|
Size-Reduction of Broadband 3-dB CPW Branch-Line Couplers Shinya Johnosono (Murata Manufacturing), Takao Fujii, Isao Ohta (Univ. of Hyogo) |
A coplanar waveguide can be easily loaded with a series reactance by making a double structure of the strip conductor us... [more] |
MW2006-15 pp.19-24 |