Isao Ohta

22 papers Journal 20Unranked 2
YearRankTypeTitle / Venue / Authors
2023 J jnl
Design and Fabrication of PTFE Substrate-Integrated Waveguide Butler Matrix for Short Millimeter Waves.
IEICE Trans. Electron.
Mitsuyoshi Kishihara, Kaito Fujitani, Akinobu Yamaguchi, Yuichi Utsumi, Isao Ohta
2021 J jnl
Design and Fabrication of PTFE Substrate Integrated Waveguide Coupler by SR Direct Etching.
IEICE Trans. Electron.
Mitsuyoshi Kishihara, Masaya Takeuchi, Akinobu Yamaguchi, Yuichi Utsumi, Isao Ohta
2018 J jnl
Fabrication of Integrated PTFE-Filled Waveguide Butler Matrix for Short Millimeter-Wave by SR Direct Etching.
IEICE Trans. Electron.
Mitsuyoshi Kishihara, Masaya Takeuchi, Akinobu Yamaguchi, Yuichi Utsumi, Isao Ohta
2018 J jnl
Improvement of Isolation Characteristics of Multi-Way Power Divider Using TE
IEICE Trans. Electron.
Mitsuyoshi Kishihara, Isao Ohta
2016 J jnl
Left-Handed Waveguide Using Cutoff TM-Mode.
IEICE Trans. Electron.
Mitsuyoshi Kishihara, Yuki Mizutani, Isao Ohta, Kensuke Okubo, Hironori Takimoto
2014 J jnl
Parallel Ring-Line Rat-Race Circuit with Very Loose Coupling Utilizing Composite Right-/Left-Handed Transmission Lines.
IEICE Trans. Electron.
Tadashi Kawai, Yuma Sumitomo, Akira Enokihara, Isao Ohta, Kei Satoh, Yasunori Suzuki, Hiroshi Okazaki, Shoichi Narahashi
2013 — conf
Compact wideband rat-race hybrid utilizing composite right/left-handed transmission lines.
RWS
Yuma Sumitomo, Tadashi Kawai, Akira Enokihara, Isao Ohta, Kei Satoh, Yasunori Suzuki, Hiroshi Okazaki, Shoichi Narahashi
2013 — conf
Compact wideband rat-race hybrid utilizing composite right/left-handed transmission lines.
WiSNet
Yuma Sumitomo, Tadashi Kawai, Akira Enokihara, Isao Ohta, Kei Satoh, Yasunori Suzuki, Hiroshi Okazaki, Shoichi Narahashi
2013 J jnl
Design methods for broadband 3dB branch-line and rat-race hybrids.
IEICE Electron. Express
Tadashi Kawai, Isao Ohta, Akira Enokihara
2012 J jnl
Design and Fabrication of PTFE-Filled Waveguide Components by SR Direct Etching.
IEICE Trans. Electron.
Mitsuyoshi Kishihara, Hiroaki Ikeuchi, Yuichi Utsumi, Tadashi Kawai, Isao Ohta
2011 J jnl
Design of a Broadband Cruciform Substrate Integrated Waveguide Coupler.
IEICE Trans. Electron.
Mitsuyoshi Kishihara, Isao Ohta, Kensuke Okubo
2011 J jnl
Design of an H-Plane Waveguide Intersection with High Isolation.
IEICE Trans. Electron.
Hiroaki Ikeuchi, Tadashi Kawai, Mitsuyoshi Kishihara, Isao Ohta
2010 J jnl
Band-Broadening Design Technique of CRLH-TLs Dual-Band Branch-Line Couplers Using CRLH-TLs Matching Networks.
IEICE Trans. Electron.
Tadashi Kawai, Miku Nakamura, Isao Ohta, Akira Enokihara
2010 J jnl
Shielded Structure of Composite Right/Left-Handed Transmission Line Using Substrate Integrated Waveguide and Floating-Conductor.
IEICE Trans. Electron.
Kensuke Okubo, Mitsuyoshi Kishihara, Akifumi Ikeda, Jiro Yamakita, Isao Ohta
2009 J jnl
Analysis of Post-Wall Waveguide Based on H-Plane Planar Circuit Approach.
IEICE Trans. Electron.
Mitsuyoshi Kishihara, Isao Ohta, Kensuke Okubo, Jiro Yamakita
2008 J jnl
Dual-Band Wilkinson Power Dividers Using a Series RLC Circuit.
IEICE Trans. Electron.
Tadashi Kawai, Yasuaki Nakashima, Yoshihiro Kokubo, Isao Ohta
2008 J jnl
Parallel Coupled Microstrip Couplers Compensated with Periodic Floating-Conductors on Coupled Edges.
IEICE Trans. Electron.
Takao Fujii, Isao Ohta, Tadashi Kawai, Yoshihiro Kokubo
2007 J jnl
Cruciform Directional Couplers in E-Plane Rectangular Waveguide.
IEICE Trans. Electron.
Mitsuyoshi Kishihara, Isao Ohta, Kuniyoshi Yamane
2007 J jnl
Miniature Broad-Band CPW 3-dB Branch-Line Couplers in Slow-Wave Structure.
IEICE Trans. Electron.
Takao Fujii, Isao Ohta, Tadashi Kawai, Yoshihiro Kokubo
2006 J jnl
Multi-Stage, Multi-Way Microstrip Power Dividers with Broadband Properties.
IEICE Trans. Electron.
Mitsuyoshi Kishihara, Isao Ohta, Kuniyoshi Yamane
2005 J jnl
Broadband Multi-Way Microstrip Power Dividers.
IEICE Trans. Electron.
Mitsuyoshi Kishihara, Kuniyoshi Yamane, Isao Ohta, Tadashi Kawai
2005 J jnl
Design of Quadrature Hybrids and Directional Couplers Based on the Equivalent Admittance Approach.
IEICE Trans. Electron.
Isao Ohta, Tadashi Kawai