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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
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Committee Date Time Place Paper Title / Authors Abstract Paper #
MW 2024-02-29
Okayama Okayama Prefectural University
(Primary: On-site, Secondary: Online)
A design of H-plane waveguide directional coupler with X-type intersection
Mitsuyoshi Kishihara, Koichiro Sakaguchi, Kensuke Okubo (Okayama Pref. Univ.), Isao Ohta (Univ. of Hyogo) MW2023-182
The cruciform directional coupler which consists of two rectangular waveguides crossing each other at right angles has b... [more] MW2023-182
PN, EMT, OPE, EST, MWP, LQE, IEE-EMT [detail] 2019-01-18
Osaka Osaka University Nakanoshima Center Dual-Parallel Electro-Optic Modulator Integrated with Microwave Hybrid Circuit for Compensation of Third-Order Inter Modulation Distortion
Yuta Kashiwagi, Daichi Furubayashi, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo), Yukako Takizawa (Hyogo Pref. Inst. Tech.), Naokatsu Yamamoto (NICT), Tetsuya Kawanishi (Waseda Univ.) PN2018-59 EMT2018-93 OPE2018-168 LQE2018-178 EST2018-106 MWP2018-77
A new optical compensation method of the third-order intermodulation distortion (IMD3) was proposed, we considered to mi... [more] PN2018-59 EMT2018-93 OPE2018-168 LQE2018-178 EST2018-106 MWP2018-77
MW 2017-12-19
Tokyo   Proposal of Reflective Circuit and Variable-Attenuation-Phase Shifter with Independently Controllable Amplitude and Phase
Shosei Tomida, Satoshi Kitabayashi, Yuichi Miyaji, Masaya Tamura (Toyohashi Univ. of Tech.) MW2017-151
Variable attenuators and phase shifters are used in various wireless systems. However, there are few reports for miniatu... [more] MW2017-151
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
Ehime Matsuyama Multi-Purpose Community Center An Extension of Balanced and Unbalanced Mode Analysis for Balanced-Fed Asymmetric Antennas
Nozomu Ishii (Niigata Univ.)
It is well known that the unbalanced mode current flows on the outer conductor of the coaxial line, which is connected a... [more]
Niigata Niigata Univ. Input Impedance Measurement of a Balanced Dipole Antenna Corrected by Considering Characteristic of 180-degree 3dB Hybrid Coupler
Junki Hayakawa, Nozomu Ishii (Niigata Univ.) AP2012-69
It is known that the input impedance of balanced antennas can be measured with the 180-degree 3dB hybrid coupler. Howeve... [more] AP2012-69
AP 2012-01-10
Okinawa Tenbusu Naha Radiation Efficiency Measurement Based on Wheeler Method Using 90-degree 3dB Hybrid Coupler and Sliding Short
Nozomu Ishii, Yohei Kobayashi (Niigata Univ.) AP2011-139
A measurement technique of arbitrary reflection coefficient using 90-degree 3dB hybrid coupler and sliding short is prop... [more] AP2011-139
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
Kanagawa Kanagawa Womens Center Uncertainty of Radiation Efficiency Measurement Based on Wheeler Method Using Two Novel Estimations for Reflection Coefficients
Yohei Kobayashi, Nozomu Ishii (Niigata Univ.) AP2011-88
Several mesurement techniques using $180^\circ$ 3dB hybrid coupler or power divider were proposed to reduce the uncertai... [more] AP2011-88
MW 2010-05-13
Hyogo University of Hyogo 11W output power C-X band broadband high power balanced amplifier using GaN HEMT
Eigo Kuwata, Koji Yamanaka, Tasuku Kirikoshi, Akira Inoue, Yoshihito Hirano (MELCO) MW2010-17
This paper reports on GaN HEMT (Gallium Nitride High Electron Mobility Transistor) HIC (Hybrid Integrated Circuit) high ... [more] MW2010-17
MW 2009-12-18
Ishikawa Kanazawa Inst. of Tech. A Tandem 3-dB Hybrid Coupler Using Coupled Lines With Series Capacitance
Motomi Abe, Yukihiro Tahara, Naofumi Yoneda (Mitsubishi Electric Corporation) MW2009-154
A novel tandem 3-dB hybrid coupler using coupled lines with series capacitance is presented. The desired coupling hybrid... [more] MW2009-154
OPE, EMT, MW 2009-07-31
Hokkaido Asahikawa Civic Culture Hall C-Ku band 120% relative bandwidth high efficiency high power amplifier using GaN HEMT
Eigo Kuwata, Koji Yamanaka, Tasuku Kirikoshi, Akira Inoue, Yoshihito Hirano (Mitsubishi electric corp) MW2009-68 OPE2009-68
This paper reports on GaN HEMT (Gallium Nitride High Electron Mobility Transistor) HIC (Hybrid Integrated Circuit) high ... [more] MW2009-68 OPE2009-68
MW 2009-06-30
Aichi Nagoya Institute of Technology A TE10 -TE20 Mode Transducer Utilizing a Right-Angled Corner and Its Applications to Design of Passive Components
Satoshi Matsumoto (Furuno Electric,), Isao Ohta, Kensuke Fukada, Tadashi Kawai (Univ. of Hyogo), Ken'ichi Iio, Takuo Kashiwa (Furuno Electric,) MW2009-24
This paper describes a constitution method of a TE10-TE20 mode transducer utilizing an H-plane right-angled corner compo... [more] MW2009-24
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
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