Tadashi Kawai

According to our database, Tadashi Kawai authored at least 23 papers between 2005 and 2024.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2024

Optical Mode Multiplexer Using LiNbO₃ Asymmetric Directional Coupler Enabling Voltage Control for Phase-Matching Condition.

Shotaro Yasumori, Seiya Morikawa, Takanori Sato, Tadashi Kawai, Akira Enokihara, Shinya Nakajima, Kouichi Akahane

IEICE Trans. Electron., 2024

2022

Mach-Zehnder Optical Modulator Integrated with Tunable Multimode Interference Coupler of Ti:LiNbO₃ Waveguides for Controlling Modulation Extinction Ratio.

Anna Hirai, Yuichi Matsumoto, Takanori Sato, Tadashi Kawai, Akira Enokihara, Shinya Nakajima, Atsushi Kanno, Naokatsu Yamamoto

IEICE Trans. Electron., August, 2022

2020

Electro-Optic Modulator for Compensation of Third-Order Intermodulation Distortion Using Frequency Chirp Modulation.

Daichi Furubayashi, Yuta Kashiwagi, Takanori Sato, Tadashi Kawai, Akira Enokihara, Naokatsu Yamamoto, Tetsuya Kawanishi

IEICE Trans. Electron., 2020

2019

Dual-Parallel Mach-Zehnder Modulator Integrated with 180-degree Hybrid for Compensation of Third-Order Intermodulation Distortion.

Daichi Furubayashi, Yuta Kashiwagi, Tadashi Kawai, Akira Enokihara, Naokatsu Yamamoto, Tetsuya Kawanishi

Proceedings of the 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019

2018

A 920MHz Lumped-Element Wilkinson Power Divider Utilizing LC-Ladder Circuits.

Tadashi Kawai, Kensuke Nagano, Akira Enokihara

IEICE Trans. Electron., 2018

2017

Design of Multi-Way LC-Ladder Dividers with Multi-Band Operation.

Yosuke Okada, Tadashi Kawai, Akira Enokihara

IEICE Trans. Electron., 2017

2015

Compact Electro-Optic Single Sideband Modulators Utilizing Miniaturized Branch-Line Couplers on LiNbO₃ Substrate.

Katsuyuki Yamamoto, Tadashi Kawai, Akira Enokihara, Tetsuya Kawanishi

IEICE Trans. Electron., 2015

Low Chirp Modulation by Electro-Optic Intensity Modulator Using Microwave 180-Degree Hybrid Directly Formed on LiNbO₃ Substrate.

Akira Enokihara, Masashi Yamamoto, Tadashi Kawai, Tetsuya Kawanishi

IEICE Trans. Electron., 2015

2014

Parallel Ring-Line Rat-Race Circuit with Very Loose Coupling Utilizing Composite Right-/Left-Handed Transmission Lines.

Tadashi Kawai, Yuma Sumitomo, Akira Enokihara, Isao Ohta, Kei Satoh, Yasunori Suzuki, Hiroshi Okazaki, Shoichi Narahashi

IEICE Trans. Electron., 2014

2013

Design methods for broadband 3dB branch-line and rat-race hybrids.

Tadashi Kawai, Isao Ohta, Akira Enokihara

IEICE Electron. Express, 2013

Compact wideband rat-race hybrid utilizing composite right/left-handed transmission lines.

Yuma Sumitomo, Tadashi Kawai, Akira Enokihara, Isao Ohta, Kei Satoh, Yasunori Suzuki, Hiroshi Okazaki, Shoichi Narahashi

Proceedings of the 2013 IEEE Radio and Wireless Symposium, 2013

2012

Design and Fabrication of PTFE-Filled Waveguide Components by SR Direct Etching.

Mitsuyoshi Kishihara, Hiroaki Ikeuchi, Yuichi Utsumi, Tadashi Kawai, Isao Ohta

IEICE Trans. Electron., 2012

Investigation of Heating Effect by Microwave Irradiation for Phantoms and Plants.

Jingfan Xu, Tadashi Kawai, Akira Enokihara, Hiroshi Murakami

Proceedings of the 2012 Fifth International Conference on Emerging Trends in Engineering and Technology, 2012

2011

Design of an H-Plane Waveguide Intersection with High Isolation.

Hiroaki Ikeuchi, Tadashi Kawai, Mitsuyoshi Kishihara, Isao Ohta

IEICE Trans. Electron., 2011

2010

Band-Broadening Design Technique of CRLH-TLs Dual-Band Branch-Line Couplers Using CRLH-TLs Matching Networks.

Tadashi Kawai, Miku Nakamura, Isao Ohta, Akira Enokihara

IEICE Trans. Electron., 2010

2009

Fabrication of Wide Band Metallic Bend Waveguide with Asymmetric In-Line Dielectric Rods.

Yoshihiro Kokubo, Tadashi Kawai

IEICE Trans. Electron., 2009

2008

Wide Band Metallic Waveguide with Asymmetric In-Line Dielectric Rods.

Yoshihiro Kokubo, Tadashi Kawai

IEICE Trans. Electron., 2008

Dual-Band Wilkinson Power Dividers Using a Series RLC Circuit.

Tadashi Kawai, Yasuaki Nakashima, Yoshihiro Kokubo, Isao Ohta

IEICE Trans. Electron., 2008

Parallel Coupled Microstrip Couplers Compensated with Periodic Floating-Conductors on Coupled Edges.

Takao Fujii, Isao Ohta, Tadashi Kawai, Yoshihiro Kokubo

IEICE Trans. Electron., 2008

2007

Economic Setup for a Dual-Band Metallic Waveguide with Dual In-Line Dielectric Rods.

Yoshihiro Kokubo, Sotaro Yoshida, Tadashi Kawai

IEICE Trans. Electron., 2007

Miniature Broad-Band CPW 3-dB Branch-Line Couplers in Slow-Wave Structure.

Takao Fujii, Isao Ohta, Tadashi Kawai, Yoshihiro Kokubo

IEICE Trans. Electron., 2007

2005

Design of Quadrature Hybrids and Directional Couplers Based on the Equivalent Admittance Approach.

Isao Ohta, Tadashi Kawai

IEICE Trans. Electron., 2005

Broadband Multi-Way Microstrip Power Dividers.

Mitsuyoshi Kishihara, Kuniyoshi Yamane, Isao Ohta, Tadashi Kawai

IEICE Trans. Electron., 2005