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 Results 1 - 14 of 14  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
MW 2018-12-14
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
MW 2014-03-04
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
MWP, EMT, PN, LQE, OPE, EST, IEE-EMT [detail] 2014-01-23
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
PN, EMT, LQE, OPE, MWP, EST, IEE-EMT [detail] 2013-01-25
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
MW 2012-10-18
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
ED, MW 2012-01-11
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
MW 2011-10-20
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
MW 2010-11-25
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
MW 2010-05-14
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
OPE, EMT, MW 2009-07-31
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
MW 2007-12-18
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
MW 2007-12-18
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
MW 2007-05-21
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
MW 2006-05-18
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
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