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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Electronics and Electrical Engineering 45 3563 3419 132 125 533 7964

Kenichi Okada publications per year

The chart shows the history of publications by Kenichi Okada between 1976 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Kenichi Okada published across 50 years, from 1976 to 2025, averaging 12.8 papers a year. Output peaked at 40 publications in 2011. 69 of the 638 publications appeared in the last two years.

No. of publications
10 20 30 40
Bar chart. Horizontal axis: year, 1976 to 2025. Vertical axis: number of publications, 0 to 40. Peak 40 publications in 2011. 1976: 1 publication 1977: 0 publications 1978: 2 publications 1979: 1 publication 1980: 0 publications 1981: 0 publications 1982: 0 publications 1983: 0 publications 1984: 0 publications 1985: 0 publications 1986: 0 publications 1987: 0 publications 1988: 0 publications 1989: 1 publication 1990: 0 publications 1991: 0 publications 1992: 1 publication 1993: 1 publication 1994: 3 publications 1995: 0 publications 1996: 2 publications 1997: 0 publications 1998: 0 publications 1999: 2 publications 2000: 3 publications 2001: 3 publications 2002: 0 publications 2003: 10 publications 2004: 28 publications 2005: 27 publications 2006: 30 publications 2007: 26 publications 2008: 22 publications 2009: 16 publications 2010: 29 publications 2011: 40 publications 2012: 29 publications 2013: 27 publications 2014: 25 publications 2015: 34 publications 2016: 19 publications 2017: 19 publications 2018: 23 publications 2019: 33 publications 2020: 26 publications 2021: 29 publications 2022: 35 publications 2023: 22 publications 2024: 35 publications 2025: 34 publications
1976 2025

638 publications in total across all disciplines

View publications per year as a table
Kenichi Okada: publications per year, 1976 to 2025
Year Publications
1976 1
1977 0
1978 2
1979 1
1980 0
1981 0
1982 0
1983 0
1984 0
1985 0
1986 0
1987 0
1988 0
1989 1
1990 0
1991 0
1992 1
1993 1
1994 3
1995 0
1996 2
1997 0
1998 0
1999 2
2000 3
2001 3
2002 0
2003 10
2004 28
2005 27
2006 30
2007 26
2008 22
2009 16
2010 29
2011 40
2012 29
2013 27
2014 25
2015 34
2016 19
2017 19
2018 23
2019 33
2020 26
2021 29
2022 35
2023 22
2024 35
2025 34
Total 638
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Kenichi Okada publication distribution in Electronics and Electrical Engineering in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Electronics and Electrical Engineering in 2026. The highlighted bar marks where Kenichi Okada sits on this spectrum.

No. of scientists
100 200 300 400
Bar chart with 53 bars. Horizontal axis: publications, 34–53 to 1,065+. Vertical axis: number of scientists, 0 to 445. Most scientists, 445, have 174–193 publications. The last bar groups every scientist with 1,065 publications or more. The highlighted bar, 514–533 publications, is where this scientist sits. 34–53 publications: 24 scientists 54–73 publications: 52 scientists 74–93 publications: 114 scientists 94–113 publications: 203 scientists 114–133 publications: 269 scientists 134–153 publications: 355 scientists 154–173 publications: 403 scientists 174–193 publications: 445 scientists 194–213 publications: 430 scientists 214–233 publications: 431 scientists 234–253 publications: 399 scientists 254–273 publications: 366 scientists 274–293 publications: 335 scientists 294–313 publications: 300 scientists 314–333 publications: 276 scientists 334–353 publications: 250 scientists 354–373 publications: 214 scientists 374–393 publications: 187 scientists 394–413 publications: 152 scientists 414–433 publications: 169 scientists 434–453 publications: 147 scientists 454–473 publications: 111 scientists 474–493 publications: 117 scientists 494–513 publications: 103 scientists 514–533 publications: 99 scientists 534–553 publications: 92 scientists 554–573 publications: 75 scientists 574–593 publications: 58 scientists 594–613 publications: 69 scientists 614–633 publications: 50 scientists 634–653 publications: 62 scientists 654–673 publications: 54 scientists 674–693 publications: 44 scientists 694–713 publications: 37 scientists 714–733 publications: 28 scientists 734–753 publications: 26 scientists 754–773 publications: 26 scientists 774–793 publications: 19 scientists 794–813 publications: 23 scientists 814–833 publications: 20 scientists 834–853 publications: 16 scientists 854–873 publications: 20 scientists 874–893 publications: 11 scientists 894–913 publications: 11 scientists 914–933 publications: 16 scientists 934–953 publications: 13 scientists 954–973 publications: 10 scientists 974–993 publications: 11 scientists 994–1,013 publications: 9 scientists 1,014–1,033 publications: 9 scientists 1,034–1,053 publications: 10 scientists 1,054–1,064 publications: 6 scientists 1,065+ publications: 99 scientists
34–53 publications 1,065+

This scientist: 533 publications — 87th percentile

87% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,065 publications or more.

View publications distribution as a table
Number of Electronics and Electrical Engineering scientists by publication count, Research.com 2026 ranking edition. Based on 6,875 ranked scientists.
Publications Scientists This scientist
34–53 24
54–73 52
74–93 114
94–113 203
114–133 269
134–153 355
154–173 403
174–193 445
194–213 430
214–233 431
234–253 399
254–273 366
274–293 335
294–313 300
314–333 276
334–353 250
354–373 214
374–393 187
394–413 152
414–433 169
434–453 147
454–473 111
474–493 117
494–513 103
514–533 99 533
534–553 92
554–573 75
574–593 58
594–613 69
614–633 50
634–653 62
654–673 54
674–693 44
694–713 37
714–733 28
734–753 26
754–773 26
774–793 19
794–813 23
814–833 20
834–853 16
854–873 20
874–893 11
894–913 11
914–933 16
934–953 13
954–973 10
974–993 11
994–1,013 9
1,014–1,033 9
1,034–1,053 10
1,054–1,064 6
1,065+ 99
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Kenichi Okada D-index placement in Electronics and Electrical Engineering in 2026

The chart shows the D-index (discipline H-index) distribution of Electronics and Electrical Engineering scientists ranked by Research.com in 2026. The highlighted bar marks where Kenichi Okada sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 82 bars. Horizontal axis: D-Index, 30 to 111+. Vertical axis: number of scientists, 0 to 263. Most scientists, 263, have 32 D-Index. The last bar groups every scientist with 111 D-Index or more. The highlighted bar, 45 D-Index, is where this scientist sits. 30 D-Index: 178 scientists 31 D-Index: 257 scientists 32 D-Index: 263 scientists 33 D-Index: 262 scientists 34 D-Index: 244 scientists 35 D-Index: 236 scientists 36 D-Index: 211 scientists 37 D-Index: 220 scientists 38 D-Index: 214 scientists 39 D-Index: 214 scientists 40 D-Index: 205 scientists 41 D-Index: 187 scientists 42 D-Index: 194 scientists 43 D-Index: 201 scientists 44 D-Index: 155 scientists 45 D-Index: 189 scientists 46 D-Index: 148 scientists 47 D-Index: 160 scientists 48 D-Index: 134 scientists 49 D-Index: 130 scientists 50 D-Index: 141 scientists 51 D-Index: 156 scientists 52 D-Index: 108 scientists 53 D-Index: 130 scientists 54 D-Index: 112 scientists 55 D-Index: 97 scientists 56 D-Index: 111 scientists 57 D-Index: 102 scientists 58 D-Index: 108 scientists 59 D-Index: 120 scientists 60 D-Index: 103 scientists 61 D-Index: 93 scientists 62 D-Index: 92 scientists 63 D-Index: 74 scientists 64 D-Index: 77 scientists 65 D-Index: 73 scientists 66 D-Index: 64 scientists 67 D-Index: 69 scientists 68 D-Index: 60 scientists 69 D-Index: 39 scientists 70 D-Index: 57 scientists 71 D-Index: 59 scientists 72 D-Index: 46 scientists 73 D-Index: 49 scientists 74 D-Index: 38 scientists 75 D-Index: 35 scientists 76 D-Index: 32 scientists 77 D-Index: 35 scientists 78 D-Index: 31 scientists 79 D-Index: 22 scientists 80 D-Index: 34 scientists 81 D-Index: 31 scientists 82 D-Index: 34 scientists 83 D-Index: 23 scientists 84 D-Index: 18 scientists 85 D-Index: 30 scientists 86 D-Index: 19 scientists 87 D-Index: 19 scientists 88 D-Index: 20 scientists 89 D-Index: 8 scientists 90 D-Index: 17 scientists 91 D-Index: 7 scientists 92 D-Index: 14 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 12 scientists 97 D-Index: 10 scientists 98 D-Index: 10 scientists 99 D-Index: 12 scientists 100 D-Index: 16 scientists 101 D-Index: 5 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 8 scientists 105 D-Index: 9 scientists 106 D-Index: 13 scientists 107 D-Index: 4 scientists 108 D-Index: 5 scientists 109 D-Index: 10 scientists 110 D-Index: 8 scientists 111+ D-Index: 96 scientists
30 D-Index 111+

This scientist: 45 D-Index — 50th percentile

50% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 111 D-Index or more.

View D-Index distribution as a table
Number of Electronics and Electrical Engineering scientists by D-index, Research.com 2026 ranking edition. Based on 6,875 ranked scientists.
D-Index Scientists This scientist
30 178
31 257
32 263
33 262
34 244
35 236
36 211
37 220
38 214
39 214
40 205
41 187
42 194
43 201
44 155
45 189 45
46 148
47 160
48 134
49 130
50 141
51 156
52 108
53 130
54 112
55 97
56 111
57 102
58 108
59 120
60 103
61 93
62 92
63 74
64 77
65 73
66 64
67 69
68 60
69 39
70 57
71 59
72 46
73 49
74 38
75 35
76 32
77 35
78 31
79 22
80 34
81 31
82 34
83 23
84 18
85 30
86 19
87 19
88 20
89 8
90 17
91 7
92 14
93 9
94 15
95 10
96 12
97 10
98 10
99 12
100 16
101 5
102 7
103 7
104 8
105 9
106 13
107 4
108 5
109 10
110 8
111+ 96
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Overview

Kenichi Okada is affiliated with the Tokyo Institute of Technology in Japan and has contributed extensively to the field of engineering, with a primary focus on electrical and electronic engineering. Their research encompasses various subfields, including aerospace engineering, biomedical engineering, atomic and molecular physics and optics, and artificial intelligence.

Okada's recent publications demonstrate a concentration on radio frequency and microwave technologies, particularly in the area of integrated circuit design and wireless communications. Notable recent papers include:

  • "A 39-GHz 64-Element Phased-Array Transceiver With Built-In Phase and Amplitude Calibrations for Large-Array 5G NR in 65-nm CMOS" (2020, IEEE Journal of Solid-State Circuits)
  • "300-GHz-Band 120-Gb/s Wireless Front-End Based on InP-HEMT PAs and Mixers" (2020, IEEE Journal of Solid-State Circuits)
  • "A 28-GHz CMOS Phased-Array Beamformer Utilizing Neutralized Bi-Directional Technique Supporting Dual-Polarized MIMO for 5G NR" (2020, IEEE Journal of Solid-State Circuits)
  • "Ready-to-transfer two-dimensional materials using tunable adhesive force tapes" (2024, Nature Electronics)
  • "A CMOS Dual-Polarized Phased-Array Beamformer Utilizing Cross-Polarization Leakage Cancellation for 5G MIMO Systems" (2021, IEEE Journal of Solid-State Circuits)

The scientist has collaborated frequently with other researchers, including Atsushi Shirane, Jian Pang, Ashbir Aviat Fadila, Dongwon You, and Bangan Liu.

Kenichi Okada has been regularly published in several key venues, particularly those specializing in solid-state circuits and electronics:

  • IEEE Journal of Solid-State Circuits (29 publications)
  • IEEE Solid-State Circuits Letters (13 publications)
  • IEICE Transactions on Electronics (10 publications)
  • IEEE Access (5 publications)
  • IEICE Electronics Express (5 publications)

Their research spans several main topics, primarily:

  • Radio Frequency Integrated Circuit Design
  • Microwave Engineering and Waveguides
  • Advancements in PLL and VCO Technologies
  • Millimeter-Wave Propagation and Modeling
  • Full-Duplex Wireless Communications
  • Antenna Design and Analysis
  • Photonic and Optical Devices

Best Publications

  • A 60-GHz 16QAM/8PSK/QPSK/BPSK Direct-Conversion Transceiver for IEEE802.15.3c

    K. Okada;Ning Li;K. Matsushita;K. Bunsen

  • A 28-GHz CMOS Phased-Array Transceiver Based on LO Phase-Shifting Architecture With Gain Invariant Phase Tuning for 5G New Radio

    Jian Pang;Rui Wu;Yun Wang;Masato Dome

  • Full Four-Channel 6.3-Gb/s 60-GHz CMOS Transceiver With Low-Power Analog and Digital Baseband Circuitry

    K. Okada;K. Kondou;M. Miyahara;M. Shinagawa

  • A Fully Synthesizable All-Digital PLL With Interpolative Phase Coupled Oscillator, Current-Output DAC, and Fine-Resolution Digital Varactor Using Gated Edge Injection Technique

    Wei Deng;Dongsheng Yang;Tomohiro Ueno;Teerachot Siriburanon

  • 300-GHz-Band 120-Gb/s Wireless Front-End Based on InP-HEMT PAs and Mixers

    Hiroshi Hamada;Takuya Tsutsumi;Hideaki Matsuzaki;Takuya Fujimura

  • A Low Phase Noise Quadrature Injection Locked Frequency Synthesizer for MM-Wave Applications

    A. Musa;R. Murakami;T. Sato;W. Chaivipas

  • A 120Gb/s 16QAM CMOS millimeter-wave wireless transceiver

    Korkut K. Tokgoz;Shotaro Maki;Jian Pang;Noriaki Nagashima

  • 300-GHz. 100-Gb/s InP-HEMT Wireless Transceiver Using a 300-GHz Fundamental Mixer

    Hiroshi Hamada;Takuya Fujimura;Ibrahim Abdo;Kenichi Okada

  • A Fractional- N Sub-Sampling PLL using a Pipelined Phase-Interpolator With an FoM of -250 dB

    Aravind Tharayil Narayanan;Makihiko Katsuragi;Kento Kimura;Satoshi Kondo

  • 64-QAM 60-GHz CMOS Transceivers for IEEE 802.11ad/ay

    Rui Wu;Ryo Minami;Yuuki Tsukui;Seitaro Kawai

  • 20.3 A 64-QAM 60GHz CMOS transceiver with 4-channel bonding

    Kenichi Okada;Ryo Minami;Yuuki Tsukui;Seitaro Kawai

  • A Compact, Low-Power and Low-Jitter Dual-Loop Injection Locked PLL Using All-Digital PVT Calibration

    Ahmed Musa;Wei Deng;Teerachot Siriburanon;Masaya Miyahara

  • A Low-Power Low-Noise mm-Wave Subsampling PLL Using Dual-Step-Mixing ILFD and Tail-Coupling Quadrature Injection-Locked Oscillator for IEEE 802.11ad

    Teerachot Siriburanon;Satoshi Kondo;Makihiko Katsuragi;Hanli Liu

  • Class-C VCO With Amplitude Feedback Loop for Robust Start-Up and Enhanced Oscillation Swing

    Wei Deng;K. Okada;A. Matsuzawa

  • A full 4-channel 6.3Gb/s 60GHz direct-conversion transceiver with low-power analog and digital baseband circuitry

    Kenichi Okada;Keitarou Kondou;Masaya Miyahara;Masashi Shinagawa

  • 15.1 A 0.0066mm 2 780μW fully synthesizable PLL with a current-output DAC and an interpolative phase-coupled oscillator using edge-injection technique

    Wei Deng;Dongsheng Yang;Tomohiro Ueno;Teerachot Siriburanon

  • 22.6 A 2.2GS/s 7b 27.4mW time-based folding-flash ADC with resistively averaged voltage-to-time amplifiers

    Masaya Miyahara;Ibuki Mano;Masaaki Nakayama;Kenichi Okada

  • A 0.114-mW dual-conduction class-C CMOS VCO with 0.2-V power supply

    Kenichi Okada;You Nomiyama;Rui Murakami;Akira Matsuzawa

  • A 50.1-Gb/s 60-GHz CMOS Transceiver for IEEE 802.11ay With Calibration of LO Feedthrough and I/Q Imbalance

    Jian Pang;Shotaro Maki;Seitarou Kawai;Noriaki Nagashima

  • A 60GHz 16QAM/8PSK/QPSK/BPSK direct-conversion transceiver for IEEE 802.15.3c

    Unknown

Frequent Co-Authors

Akira Matsuzawa
Akira Matsuzawa Tokyo Institute of Technology
Jiro Hirokawa
Jiro Hirokawa Tokyo Institute of Technology
Makoto Ando
Makoto Ando Keio University
Yoshikazu Kameshima
Yoshikazu Kameshima Okayama University
Akira Nakajima
Akira Nakajima Tokyo Institute of Technology
Ho-Jin Song
Ho-Jin Song Pohang University of Science and Technology

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