Tadao Nakagawa

J-GLOBAL         Last updated: Nov 20, 2018 at 17:04
 
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Name
Tadao Nakagawa
Affiliation
Tottori University
Section
Graduate School of Engineering

Research Areas

 
 

Awards & Honors

 
Jun 2017
非対称縦積み線路を用いた準ミリ波帯バランスミキサ, Best Paper Award, 電子情報通信学会
Winner: Yo Yamaguchi, Takana kaho, Ichihiko Toyoda, Kazuhiro Uehara, Tadao Nakagawa, and Kiyomichi Araki
 
Sep 2016
通信ソサイエティ執行委員会運営と活性化への貢献, 活動功労賞, 電子情報通信学会通信ソサイエティ
 
May 2016
Toward realization of new wireless transmission technology ?orbital angular moment (OAM) multiplexing, Best Paper Award, SmartCom 2016
Winner: Doowan Lee, Hirofumi Sasaki, Hiroyuki Fukumoto and Tadao Nakagawa
 
May 2015
Performance evaluation of a simple decoding method for millimeter-wave short-range MIMO transmission through a wall, Best Paper Award, 電子情報通信学会通信ソサイエティ
Winner: Kazumitsu Sakamoto, Ken Hiraga, Tomohiro Seki, Tadao Nakagawa, Kazuhiro Uehara
 
Mar 2006
英文論文誌C編集委員としてのエレソ出版事業への貢献, 功労感謝状, 電子情報通信学会エレクトロニクスソサイエティ
 
Mar 1995
衛星地球局汎用化周波数変換器用MMICホッピング局部発振器,低歪みK帯レジスティブFETミキサMMIC, 学術奨励賞, 電子情報通信学会
 

Published Papers

 
Blind frequency-dependent IQ imbalance compensation using constant norm algorithm for OFDM systems
Tadao Nakagawa, Ryoto Hamabe, Doohwan Lee, and Takana Kaho
2018 International Symposium on Multimedia and Communication Technology (ISMAC) Proc.   9-11   Aug 2018   [Refereed]
Doohwan Lee, Hirofumi Sasaki, Hiroyuki Fukumoto, Ken Hiraga, and Tadao Nakagawa
IEICE Trans. Commun.   E100-B(7) 1044-1063   Jul 2017   [Refereed][Invited]
Fereidoun H. Panahi, Tomoaki Ohtsuki, Wenjie Jiang, Yasushi Takatori, and Tadao Nakagawa
IEEE Trans. Green Commun. Netw.   1(2) 131-144   Jun 2017   [Refereed]
Q-learning based superposed band detection in multicarrier transmission
Ali B,. Al-Shaikh, Fereidoun H. Panahi, Tomoaki Ohtsuki, Kouhei Suzaki, Hirofumi Sasaki, Hideya So, and Tadao Nakagawa
2017 IEEE International Conference on Communications (ICC) Proc.   1-6   May 2017   [Refereed]
Katsuya Nakahira, Jun Mashino, Jun-ichi Abe, Daisuke Murayama, Tadao Nakagawa, and Takatoshi Sugiyama
IEICE Trans. Commun.   E100-B(2) 390-399   Feb 2017   [Refereed]
Jun-ichi Abe and Tadao Nakagawa
2016 IEEE Global Communications Conference (GLOBECOM) Proc.   1-6   Dec 2016   [Refereed]
Beam divergence reduction using dielectric lens for orbital angular momentum wireless communications
Hiroyuki Fukumoto, Hirofumi Sasaki, Doohwan Lee, and Tadao Nakagawa
2016 International Symposium on Antennas and Propagation (ISAP) Proc.   680-681   Oct 2016   [Refereed]
Performance evaluation of wireless communications using orbital angular momentum multiplexing
Doohwan Lee, Theerat Sakdejayont, Hirofumi Sasaki, Hiroyuki Fukumoto, and Tadao Nakagawa
2016 International Symposium on Antennas and Propagation (ISAP) Proc.   280-281   Oct 2016   [Refereed]
Rei Nagashima, Tomoaki Ohtsuki, Wenjie Jiang, Yasushi Takatori, and Tadao Nakagawa
2016 IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2016) Proc.   1-6   Sep 2016   [Refereed]
Tadao Nakagawa, Takayuki Kobayashi, Koichi Ishihara, and Yutaka Miyamoto
IEICE Trans. Commun.   E99-B(7) 1416-1425   Jul 2016   [Refereed]
A balanced mixer using asymmetric stacked lines for aquasi-millimeter wave band
Yo Yamaguchi, Takana Kaho, Ichihiko Toyoda, Kazuhiro Uehara, Tadao Nakagawa, and Kiyomichi Araki
IEICE Trans. Electron. (Japanese Edition)   J99-C(5) 266-275   May 2016   [Refereed]
(Invited paper) Multi-band concurrent RF frontend for user-centric wireless system
Takana Kaho, Yo Yamaguchi, Hiroyuki Shiba, Shinpei Oshima, Tadao Nakagawa, and Kazuhiro Uehara
IEICE Trans. Electron. (Japanese Edition)   J99-C(5) 258-265   May 2016   [Refereed][Invited]
Doohwan Lee, Kohki Shibahara, Takayuki Kobayashi, Takayuki Mizuno, Hidehiko Takara, Akihide Sano, Hiroto Kawakami, Tadao Nakagawa, and Yutaka Miyamoto
J. Lightw. Technol.   34(8) 1754-1761   Apr 2016   [Refereed]
Tadao Nakagawa, Hideki Toshinaga, Toshimitsu Tsubaki, Tomohiro Seki, and Masashi Shimizu
IEICE Communications Express   5(4) 114-117   Apr 2016   [Refereed]
A study compact wideband diplexer and triplexer using multilayer inductors and capacitors in LTCC substrate
Shipei Oshima, Takana kaho, Yo Yamaguchi, and Tadao Nakagawa
IEICE Trans. Electron. (Japanese Edition)   J99-C(2) 26-36   Feb 2016   [Refereed]
Maki Arai, Tomohiro Seki, Ken Hiraga, Kazumitsu Sakamoto, Hideki Toshinaga, and Tadao Nakagawa
IEICE Trans. Commun.   E99-B(1) 48-57   Jan 2016   [Refereed]
Maki Arai, Tomohiro Seki, Ken Hiraga, Kazumitsu Sakamoto, and Tadao Nakagawa
IEICE Trans. Commun.   E99-B(6) 1362-1370   2016   [Refereed]
A multilayer triplexer with wideband passbands for compact wireless LTCC modules
Shinpei Oshima, Takana Kaho, Yo Yamaguchi, and Tadao Nakagawa
2015 Asia-Pacific Microwave Conference (2015 APMC) Proc., WE4G-5      Dec 2015   [Refereed]
Doohwan Lee, Chitradeep Majumdar, Kohki. Shibahara, Tadao Nakagawa, and Yutaka Miyamoto
The 21st Asia-Pacfic Conference (APCC 2015) Proc.   209-213   Oct 2015   [Refereed]
Kazumitsu Sakamoto, Maki Arai, Ken Hiraga, Tomohiro Seki, Toshimitsu Tsubaki, Hideki Toshinaga, and Tadao Nakagawa
IEEE Wireless Communications Letters   4(5) 557-560   Oct 2015   [Refereed]
Broadband transmission performance and antenna displacement tolerance in 4x4 short-range MIMO simple decoding
Kazumitsu Sakamoto, Ken Hiraga, Maki Arai, Tomohiro Seki, Toshimitsu Tsubaki, Hideki Toshinaga, and Tadao Nakagawa
45th European Microwave Conference (EuMC2015) Proc., EuMC11-03      Sep 2015   [Refereed]
Doohwan Lee, K. Shibahara, T. Kobayashi, T. Mizuno, H. Takara, A. Sano, H. Kawakami, Tadao Nakagawa, and Yutaka Miyamoto
41st European Conference and Exhibition on optical Communication (ECOC 2015) Proc., Th1.6.3.      Sep 2015   [Refereed]
Takana Kaho, Yo Yamaguchi, Hiroyuki Shiba, Tadao Nakagawa, Kazuhiro Uehara, and Kiyomichi Araki
IEICE Trans. Electron.   E98-C(7) 659-668   Jul 2015   [Refereed]
Takana Kaho, Yo Yamaguchi, Tadao Nakagawa; and Shinpei Oshima
2015 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Proc.   37-39   Mar 2015   [Refereed]
Ikuma Ando, Gia Khann Tran, Kiyomichi Araki, Takayuki Yamada, Takana Kaho, Yo Yamaguchi, and Tadao Nakagawa
IEICE Trans. Electron.   E98-C(3) 242-251   Mar 2015   [Refereed]
Ken Hiraga, Kazumitsu Sakamoto, Maki Arai, Tomohiro Seki, Hideki Toshinaga, Tadao Nakagawa, and Kazuhiro Uehara
IEEE Antennas and Wireless Propagation Letters   14 56-59   Jan 2015   [Refereed]
Performance evaluation of a broadband spectrum sensing system for white space usage
Hiroyuki Shiba, Yo Yamaguchi, Takayuki Yamada, Takana Kaho, Tadao Nakagawa, and Kazuhiko Uehara
IEICE Trans. Commun. (Japanese Edition)   J97-B(12) 1224-1233   Dec 2014   [Refereed]
Wideband low noise receiver front-end module using LTCC triplexer
Takana Kaho, Yo Yamaguchi, Hiroyuki Shiba, Shinpei Oshima,and Tadao Nakagawa
2014 Asia-Pacific Microwave Conference (2014 APMC) Proc., TH1B-1      Nov 2014   [Refereed]
A wideband diplexer using multilayer inductors for compact wireless LTCC modules
Shinpei Oshima, Takana Kaho, Yo Yamaguchi, Hiroyuki Shiba, and Tadao Nakagawa
2014 Asia-Pacific Microwave Conference (2014 APMC) Proc.. WE3A-2      Nov 2014   [Refereed]
A wideband GaN low noise amplifier for a frequency sensing system
Yo Yamaguchi, Takana Kaho, Munenari Kawashima, Hiroyuki Shiba, and Tadao Nakagawa
2014 Asia-Pacific Microwave Conference (2014 APMC) Proc., TH1B-3      Nov 2014   [Refereed]
Ken Hiraga, Kazumitsu Sakamoto, Maki Arai, Tomohiro Seki, Tadao Nakagawa, and Kazuhiro Uehara
IEICE Trans. Commun.   E97-B(11) 2491-2501   Nov 2014   [Refereed]
Ken Hiraga, Kazumitsu Sakamoto, Toshimitsu Tsubaki, Tomohiro Seki, Hideki Toshinaga, and Tadao Nakagawa
2014 IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2014) Proc.   289-292   Sep 2014   [Refereed]
Kazumitsu Sakamoto, Ken Hiraga, Tomohiro Seki, Tadao Nakagawa, and Kazuhiro Uehara
IEICE Communications Express   3(4) 131-137   Apr 2014   [Refereed]
12-core x 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization
Takayuki Mizuno, Takayuki Kobayashi, Hidehiko Takara, Akihide Sano, Hiroto Kawakami, Tadao Nakagawa, Yutaka Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka
Optical Fiber Communication Conference and Exposition 2014 (OFC 2014) Proc., Th5B.2      Mar 2014   [Refereed]
Maki Arai, Tomohiro Seki, Ken Hiraga, Kazumitsu Sakamoto, Hideki Toshinaga, Tadao Nakagawa, and Kazuhiro Uehara
Electronics Letters   50(7) 562-564   Mar 2014   [Refereed]
Ken Hiraga, Kazumitsu Sakamoto, Kentaro Nishimori, Tomohiro Seki, Tadao Nakagawa, and Kazuhiro Uehara
IEICE Trans. Commun.   E97-B(2) 459-468   Feb 2014   [Refereed]
Ken Hiraga, Kazumitsu Sakamoto, Kentaro Nishimori, Tomohiro Seki, Tadao Nakagawa, and Kazuhiro Uehara
IEEE Antennas and Wireless Propagation Letters   13 126-129   Jan 2014   [Refereed]
Maki Arai, Tomohiro Seki, Ken Hiraga, Tadao Nakagawa, Kazuhiro Uehara
Electronics Letters   50(2) 65-67   Jan 2014   [Refereed]
Maki Arai, Tomohiro Seki, Ken Hiraga, Tadao Nakagawa, and Kazuhiro Uehara
2013 Asia-Pacific Microwave Conference (2013 APMC) Proc., T3D-3      Dec 2013   [Refereed]
Kazumitsu Sakamoto, Ken Hiraga, Tomohiro Seki, Tadao Nakagawa, and Kazuhiro Uehara
IEICE Trans. Commun.   E96-B(10) 2513-2520   Oct 2013   [Refereed]
Akihide Sano, Hidehiko Takara, Takayuki Kobayashi, Hiroto Kawakami, Hiroki Kishikawa, Tadao Nakagawa, Yutaka Miyamoto, Yoshiteru Abe, Hirotaka Ono, Kota Shikama, Munehiko Nagatani, Takayoshi Mori, Yusuke Sasaki, Itaru Ishida, Katsuhiro Takenaga, Shoichiro Matsuo, Kunimasa Saitoh, Masanori Koshiba, Makoto Yamada, Hiroji Masuda, and Toshio Morioka
Optics Express   21(14) 16777-16783   Jul 2013   [Refereed]
Concept of and transceiver for a 60-GHz high-speed non-contact transmission system
Tadao Nakagawa, Tomohiro Seki, Munenari Kawashima, Toshimitsu Tsubaki, Ken Hiraga, Masashi Shimizu, and Kazuhiro Uehara
Global Symposium of Millimeter Waves 2013 (GSMM 2013) Proc., M3-2      Apr 2013   [Refereed]
Effects of weight errors on capacity in simple decoding of short-range MIMO transmission
Ken Hiraga, Kazumitsu Sakamoto, Tomohiro Seki, Tadao Nakagawa, and Kazuhiro Uehara
IEICE Communications Express   2(5) 193-199   Mar 2013   [Refereed]
Ken Hiraga, Kazumitsu Sakamoto, Kentaro Nishimori, Tomohiro Seki, Tadao Nakagawa, and Kazuhiro Uehara
IEEE Antennas and Wireless Propagation Letters   12 1622-1626   Jan 2013   [Refereed]
A method for controlling phase difference between propagation channels for short-range MIMO transmission
Kazumitsu Sakamoto, Ken Hiraga, Tomohiro Seki, Tadao Nakagawa, and Kazuhiro Uehara
2012 International Symposium on Antennas & Propagation (ISAP 2012) Proc.   754-757   Oct 2012   [Refereed]
Koichi Ishihara, Etsushi Yamazaki, Tadao Nakagawa, Riichi Kudo, Takayuki Kobayashi and Yutaka Miyamoto
Electronics Letters   48(20) 1290-1292   Sep 2012   [Refereed]
(Invited paper) Frequency-domain signal processing for chromatic dispersion equalization and carrier frequency offset estimation in optical coherent receivers
Tadao Nakagawa, Koichi Ishihara, Riichi Kudo, Takayuki Kobayashi, and Yutaka Miyamoto
Signal Processing in Photonic Communications (SPPcom) Proc., SpTh1B.4      Jun 2012   [Refereed][Invited]
Hybrid 40-Gb/s and 100-Gb/s PDM-QPSK DWDM transmission using real-time DSP in field testbed
Shuto Yamamoto, Tetsuro Inui, Hiroto Kawakami, Shogo Yamanaka, Takeshi Kawai, Takashi Ono, Kunihiko Mori, Masahiro Suzuki, Ayako Iwaki, Tomoyoshi Kataoka, Mitsunori Fukutoku, Tadao Nakagawa, Toshikazu Sakano, Masahito Tomizawa, Yutaka Miyamoto, Senichi Suzuki, Kouichi Murata, Takashi Kotanigawa, and Akio Maeda
Optical Fiber Communication Conference and Exposition 2012 (OFC 2012) Proc., JW2A.4      Mar 2012   [Refereed]
Munehiro Matsui, Tadao Nakagawa, Riichi Kudo, Koichi Ishihara, and Masato Mizoguchi
22nd IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2011) Dig.   1369-1373   Sep 2011   [Refereed]
Etsushi Yamazaki, Shogo Yamanaka, Yoshiaki Kisaka, Tadao Nakagawa, Koichi Murata, Eiji Yoshida, Toshikazu Sakano, Masahito Tomizawa, Yutaka Miyamoto, Shinji Matsuoka, Junichiro Matsui, Atsufumi Shibayama, Jun-ichi Abe, Yuichi Nakamura, Hidemi Noguchi, Kiyoshi Fukuchi, Hiroshi Onaka, Katsumi Fukumitsu, Kousuke Komaki, Osamu Takeuchi, Yuichiro Sakamoto, Hisao Nakashima, Takashi Mizuochi, Kazuo Kubo, Yoshikuni Miyata, Hiroshi Nishimoto, Susumu Hirano, and Kiyoshi Onohara
Optics Express   19(14) 13179-13184   Jul 2011   [Refereed]
Munehiro Matsui, Riichi Kudo, Yasushi Takatori, Tadao Nakagawa, Koichi Ishihara, Masato Mizoguchi,, Takayuki Kobayashi and Yutaka Miyamoto
IEICE Trans. Commun.   E94-B(7) 1801-1808   Jul 2011   [Refereed]
Ultra high capacity transmission based on high-order QAM for future optical transport networks
Takayuki Kobayashi, Akihide Sano, Akihiko Matsuura, Tadao Nakagawa, Eiji Yoshida, and Yutaka Miyamoto
Signal Processing in Photonic Communications (SPPcom) Proc., SPMA3      Jun 2011   [Refereed]
Frequency-domain equalization for coherent optical transmission systems
Koichi Ishihara, Riichi Kudo, Takayuki Kobayashi, Akihide Sano, Yasushi Takatori, Tadao Nakagawa, and Yutaka Miyamoto
Optical Fiber Communication Conference and Exposition 2011 (OFC 2011) Proc., OWW4      Mar 2011   [Refereed]
Non-data-aided wide-range frequency offset estimator for QAM optical coherent receivers
Tadao Nakagawa, Munehiro Matsui, Takayuki Kobayashi, Koichi Ishihara, Riichi Kudo, Masato Mizoguchi,, and Yutaka Miyamoto
Optical Fiber Communication Conference and Exposition 2011 (OFC 2011) Proc., OMJ1      Mar 2011   [Refereed]
120-Gb/s PDM 64-QAM transmission over 1,280 km using multi-staged nonlinear compensation in digital coherent receiver
Takayuki Kobayashi, Akihide Sano, Akihiko Matsuura, Etsushi Yamazaki, Eiji Yoshida, Yutaka Miyamoto, Tadao Nakagawa, Yohei Sakamaki and Takayuki Mizuno
Optical Fiber Communication Conference and Exposition 2011 (OFC 2011) Proc., OThF6      Mar 2011   [Refereed]
Hirokazu Kubota, Hidehiko Takara, Tadao Nakagawa, Munehiro Matsui and T. Morioka
IEICE Electronics Express   7(20) 1552-1556   Oct 2010   [Refereed]
Tadao Nakagawa, Koichi Ishihara, Takayuki Kobayashi, Riichi Kudo, Munehiro Matsui, Yasushi Takatori, Masato Mizoguchi
36th European Conference and Exhibition on optical Communication (ECOC 2010) Proc., We.7.A.2      Sep 2010   [Refereed]
Shogo Yamanaka, Takayuki Kobayashi, Akihide Sano, Hiroji Masuda, Eiji Yoshida, Yutaka Miyamoto, Tadao Nakagawa, Munehiko Nagatani, and Hideyuki Nosaka
36th European Conference and Exhibition on optical Communication (ECOC 2010) Proc., We.8.C.1      Sep 2010   [Refereed]
Munehiro Matsui, Riichi Kudo, Yasushi Takatori, Koichi Ishihara, Tadao Nakagawa, Masato Mizoguchi, Takayuki Kobayashi and Yutaka Miyamoto
Electronics Letters   46(16) 1138-1139   Aug 2010   [Refereed]
A prototype of band-divided receiver for optical wideband signal
Munehiro Matsui, Riichi Kudo, Yasushi Takatori, Koichi Ishihara, Tadao Nakagawa, Masato Mizoguchi, Takayuki Kobayashi, and Yutaka Miyamoto
15th OptoElectronics and Communications Conference (OECC 2010) Dig., 7B4-3      Jul 2010   [Refereed]
Yo Yamaguchi, Takana Kaho, Motoharu Sasaki, Kenjiro Nishikawa, Tomohiro Seki, Tadao Nakagawa, and Kazuhiro Uehara
IEICE Trans. Electron.   E93-C(7) 1119-1125   Jul 2010   [Refereed]
111Gb/s No-guard-interval OFDM using low sampling rate analogue-to-digital converter
Riichi Kudo, Takayuki Kobayashi, Etsushi Yamazaki, Akihide Sano, Eiji Yoshida, Koichi Ishihara, Yasushi Takatori, Munehiro Matsui, Tadao Nakagawa, Masato Mizoguchi,, and Yutaka Miyamoto
35th European Conference and Exhibition on Optical Communications (ECOC 2009) Proc., P4.09      Sep 2009   [Refereed]
Hitoshi Hayashi, Tadao Nakagawa, Kazuhiro Uehara, and Yoshihiro Takigawa
IEICE Trans. Electron.   E90-C(10) 2022-2029   Oct 2007   [Refereed]
Hitoshi Hayashi, Munenari Kawashima, Tadao Nakagawa, Kazuhiro Uehara, and Yoshihiro Takigawa
IEICE Trans. Electron.   E90-C(6) 1203-1208   Jun 2007   [Refereed]
Hitoshi Hayashi, Tadao Nakagawa, Kazuhiro Uehara, and Yoshihiro Takigawa
IEICE Trans. Electron.   E90-C(6) 1222-1227   Jun 2007   [Refereed]
Takana Kaho, Yo Yamaguchi, Tadao Nakagawa, and Katsuhiko Araki
2006 Asia-Pacific Microwave Conference (2006 APMC) Proc.   895-898   Dec 2006   [Refereed]
Takana Kaho, Yo Yamaguchi, Tadao Nakagawa, Katsuhiko Araki, and Katsuhiko Araki
IEICE Trans. Electron.   E89-C(10) 1448-1453   Oct 2006   [Refereed]
Improved technique for reflection performance in broadband variable gain low noise amplifiers
Munenari Kawashima, Tadao Nakagawa, Yo Yamaguchi, and Katsuhiko Araki
2005 European Gallium Arsenide and Other Semiconductor Application Symposium (GAAS 2005) Proc.   81-84   Oct 2005   [Refereed]
Tadao Nakagawa, Munenari Kawashima, Munehiro Matsui, and Katsuhiko Araki
2005 IEEE RFIC Symposium Dig.   517-520   Jun 2005   [Refereed]
Yo Yamaguchi, Tadao Nakagawa, and Katsuhiko Araki
2004 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS) Dig.   268-271   Oct 2004   [Refereed]
Implementation and performance of a multi-band transceiver for software defined radio
Katsuhiko Araki, Tadao Nakagawa, Munenari Kawashima, Kiyoshi Kobayashi, Kazunori Akabane, Hiroyuki Shiba, and Hitoshi Hayashi
2004 IEEE Radio and Wireless Conference (RAWCON 2004) Dig.   207-210   Sep 2004   [Refereed]
Gain/Phase imbalance compensation for multi-band quadrature receivers
Tadao Nakagawa, Munehiro Matsui, and Katsuhiko Araki
Vehicular Technology Conference Fall 2004 (VTC-Fall 2004) Proc.   2034-2037   Sep 2004   [Refereed]
Compensation technique for impairments of wideband quadrature demodulators for direct conversion receivers
Munehiro Matsui, Tadao Nakagawa, Kiyoshi Kobayashi, and Katsuhiko Araki
15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2004) Dig.   1677-1681   Sep 2004   [Refereed]
Multi-band amplifier using FET bias controlled matching circuit
Munenari kawashima, Kenjiro Nishikawa, Tadao Nakagawa, and Katsuhiko Araki
IEICE Trans. Electron. (Japanese Edition)   J87-C(1) 54-60   Jan 2004   [Refereed]
V-band fully-integrated TX/RX single-chip 3-D MMICs using commercial GaAs pHEMT technology for high-speed wireless applications
Kenjiro Nishikawa, Belinda Piernas, Tadao Nakagawa, Katsuhiko Araki, and Keizo Cho
2003 IEEE GaAs IC Symposium Dig.   97-100   Nov 2003   [Refereed]
A novel broadband active balun
Munenari Kawashima, Tadao Nakagawa, and Katsuhiko Araki
33rd European Microwave Conference (EuMC) Proc.   495-498   Sep 2003   [Refereed]
Belinda Piernas, Kenjiro Nishikawa, Tadao Nakagawa, and Katsuhiko Araki
IEEE Trans. Microwave Theory Tech.   51(3) 778-783   Mar 2003   [Refereed]
Interference reduction method using an intermodulation distortion control technique for high power amplifier array
Takana Kaho, Y. Nakasuga, Tadao Nakagawa, and Katsuhiko Araki
4th MINT Millimeter-Wave International Symposium Dig.   79-82   Feb 2003   [Refereed]
A Monolithic linearizer using an even-order-distortion controller for an S-band high power amplifier
Takana Kaho, Hiroshi Okazaki, Tadao Nakagawa, and Katsuhiko Araki
IEICE Trans. Electron.   E85-C(12) 1959-1966   Dec 2002   [Refereed]
A 0.9-2.6 GHz broadband RF front-end chip-set with a direct conversion architecture
Munenari Kawashima, Tadao Nakagawa, Hitoshi Hayashi, Kenjiro Nishikawa, and Katsuhiko Araki
IEICE Trans. Commun.   E85-B(12) 2732-2740   Dec 2002   [Refereed]
Takana Kaho, Tadao Nakagawa, Katsuhiko Araki, and Kohji Horikawa
IEEE Trans. Microwave Theory Tech.   50(12) 2987-2994   Dec 2002   [Refereed]
60-GHz band and 5-GHz band demodulator MMICs for more than 1-Gbps FSK transceivers
Tadao Nakagawa, Kenjiro Nishikawa, and Katsuhiko Araki
2002 Asia-Pacific Microwave Conference (2002 APMC) Proc.   839-842   Nov 2002   [Refereed]
1-V operation high-frequency broadband Si 3-D MMICs
Kenjiro Nishikawa, Kenji Kamogawa, Belinda Piernas, Tadao Nakagawa, and Katsuhiko Araki
2002 Asia-Pacific Microwave Conference (2002 APMC) Proc.   693-696   Nov 2002   [Refereed]
A multi-band direct conversion transceiver for software-defined radios
Munenari Kawashima, Tadao Nakagawa, Hitoshi Hayashi, Kenjiro Nishikawa, and Katsuhiko Araki
2002 Asia-Pacific Microwave Conference (2002 APMC) Proc.   985-988   Nov 2002   [Refereed]
60-GHz single-chip receiver 3-D MMIC using commercial GaAs pHEMT technology
Kenjiro Nishikawa, Belinda Piernas, Tadao Nakagawa, Katsuhiko Araki, and Keizo Cho
Extended Abstract of the 2002 International Conference on Solid State Devices and Material (SSDM 2002)   302-303   Sep 2002   [Refereed]
60-GHz antenna and 5-GHz demodulator MMICs for more than 1-Gbps FSK transceivers
Tadao Nakagawa, Kenjiro Nishikawa, Belinda Piernas, Tomohiro Seki, and Katsuhiko Araki
32nd European Microwave Conference (EuMC) Proc.   929-932   Sep 2002   [Refereed]
Belinda Piernas, Kenjiro Nishikawa, Kenji Kamogawa, Tadao Nakagawa, and Katsuhiko Araki
IEEE Trans. Microwave Theory Tech.   50(8) 1942-1949   Aug 2002   [Refereed]
A 0.9-2.6 GHz broadband RF front-end for direct conversion transceivers
Munenari Kawashima, Hitoshi Hayashi, Kenjiro Nishikawa, Tadao Nakagawa, and Katsuhiko Araki
2002 IEEE MTT-S International Microwave Symposium Dig.   927-930   Jun 2002   [Refereed]
Reduction of intermodulation distortion in active phased array antenna systems using a distortion controller
Takana Kaho, Tadao Nakagawa, and Katsuhiko Araki
2002 IEEE MTT-S International Microwave Symposium Dig.   781-784   Jun 2002   [Refereed]
Miniaturized and broadband V-band balanced frequency doubler for highly integrated 3-D MMIC
Kenjiro Nishikawa, Belinda Piernas, Tadao Nakagawa, and Katsuhiko Araki
2002 IEEE MTT-S International Microwave Symposium Dig.   351-354   Jun 2002   [Refereed]
Compact LNA and VCO 3-D MMICs using commercial GaAs PHEMT technology for V-band single-chip TRX MMIC
Kenjiro Nishikawa, Belinda Piernas, Kenji Kamogawa, Tadao Nakagawa, and Katsuhiko Araki
2002 IEEE MTT-S International Microwave Symposium Dig.   1717-1720   Jun 2002   [Refereed]
Belinda Piernas, Kenjiro Nishikawa, Tadao Nakagawa, Hitoshi Hayashi and Katsuhiko Araki
IEEE Trans. Microwave Theory Tech.   50(4) 1120-1126   Apr 2002   [Refereed]
Hitoshi Hayashi, Tadao Nakagawa, and Katsuhiko Araki
IEEE Trans. Microwave Theory Tech.   50(1) 150-154   Jan 2002   [Refereed]
A low noise distributed amplifier using cascode-connected BJT terminal circuit
Munenari Kawashima, Hitoshi Hayashi, Tadao Nakagawa, and Katsuhiko Araki
2001 Asia-Pacific Microwave Conference (2001 APMC) Proc.   21-24   Dec 2001   [Refereed]
A 1.9-GHz direct-conversion receiver RF front-end using novel power dividers
Munenari Kawashima, Hitoshi Hayashi, Tadao Nakagawa, and Katsuhiko Araki
2001 Asia-Pacific Microwave Conference (2001 APMC) Proc.   992-995   Dec 2001   [Refereed]
A 0.9-2.5 GHz wideband direct conversion receiver for multi-band applications
Tadao Nakagawa, Munenari Kawashima, Hitoshi Hayashi, and Katsuhiko Araki
2001 IEEE GaAs IC Symposium Dig.   37-40   Oct 2001   [Refereed]
Broadband and compact Si BJT balanced up-converter MMIC using Si 3-D MMIC technology
Kenjiro Nishikawa, Kenji Kamogawa, Tadao Nakagawa, Belinda Piernas, and Katsuhiko Araki
2001 IEEE MTT-S International Microwave Symposium Dig.   87-90   May 2001   [Refereed]
Improved three-dimensional GaAs inductors
Belinda Piernas, Kenjiro Nishikawa, Kenji Kamogawa, Tadao Nakagawa, and Katsuhiko Araki
2001 IEEE MTT-S International Microwave Symposium Dig.   189-192   May 2001   [Refereed]
Hitoshi Hayashi, Belinda Piernas, Kenjiro Nishikawa, and Tadao Nakagawa
Electronics Letters   36(21) 1785-1787   Oct 2000   [Refereed]
Effect of phase noise on RF communication signals
Tadao Nakagawa and Katsuhiko Araki
Vehicular Technology Conference Fall 2000 (VTC-Fall 2000) Proc.   588-591   Sep 2000   [Refereed]