Photovoltaic effects on Franz–Keldysh oscillations in photoreflectance spectra: Application to determination of surface Fermi level and surface recombination velocity in undoped GaAs∕n-type GaAs epitaxial layer structures
Takeuchi, Hideo, Kamo, Yoshitaka, Yamamoto, Yoshitsugu, Oku, Tomoki, Totsuka, Masahiro, Nakayama, Masaaki
Published in Journal of applied physics (15.03.2005)
Published in Journal of applied physics (15.03.2005)
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Journal Article
Photoluminescence-excitation spectroscopy as a highly sensitive probe for carrier transport processes affected by surface damages in AlxGa1−xN/GaN heterostructures
Takeuchi, Hideo, Yamamoto, Yoshitsugu, Kamo, Yoshitaka, Kunii, Tetsuo, Oku, Tomoki, Shirahama, Takeo, Tanaka, Hiroyasu, Nakayama, Masaaki
Published in Journal of applied physics (15.08.2007)
Published in Journal of applied physics (15.08.2007)
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Journal Article
54% PAE, 70-W X-Band GaN MMIC Power Amplifier With Individual Source via Structure
Kamioka, Jun, Tarui, Yukinobu, Kamo, Yoshitaka, Shinjo, Shintaro
Published in IEEE microwave and wireless components letters (01.12.2020)
Published in IEEE microwave and wireless components letters (01.12.2020)
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Journal Article
2.5 to 10.0 GHz Band-Pass Non-Uniform Distributed GaN MMIC HPA
Kamioka, Jun, Hangai, Masatake, Miwa, Shinichi, Kamo, Yoshitaka, Shinjo, Shintaro
Published in 2020 IEEE/MTT-S International Microwave Symposium (IMS) (01.08.2020)
Published in 2020 IEEE/MTT-S International Microwave Symposium (IMS) (01.08.2020)
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Conference Proceeding
An X-band High Power Tile-Type GaN TR Module for Low-Profile AESA
Kimura, Makoto, Tarui, Yukinobu, Shibata, Hironobu, Kuwata, Eigo, Kamioka, Jun, Nagamine, Takumi, Abe, Shunichi, Miyawaki, Katsumi, Saito, Tetsunari, Kamo, Yoshitaka, Muroi, Koichi
Published in 2021 IEEE MTT-S International Microwave Symposium (IMS) (07.06.2021)
Published in 2021 IEEE MTT-S International Microwave Symposium (IMS) (07.06.2021)
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Conference Proceeding
Growth of Crack-Free GaN on Si HEMTs with Fe-Doped GaN Using Un-Doped GaN Interlayer
Watanabe, Hiroshi, Hatakenaka, Susumu, Okazaki, Hiroyuki, Era, Atsushi, Kamo, Yoshitaka, Nishida, Takehiro
Published in Materials Science Forum (24.05.2016)
Published in Materials Science Forum (24.05.2016)
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Journal Article
Decrease in on-state gate current of AlGaN/GaN HEMTs by recombination-enhanced defect reaction of generated hot carriers investigated by TCAD simulation
Sasaki, Hajime, Kadoiwa, Kaoru, Koyama, Hidetoshi, Kamo, Yoshitaka, Yamamoto, Yoshitsugu, Oishi, Toshiyuki, Hayashi, Kazuo
Published in Microelectronics and reliability (01.12.2014)
Published in Microelectronics and reliability (01.12.2014)
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Journal Article
Conference Proceeding
HIGH-FREQUENCY AMPLIFIER
NAKAHARA, Kazuhiko, KAMO, Yoshitaka, KIMURA, Makoto, KUWATA, Eigo, NINOMIYA, Dai
Year of Publication 17.01.2019
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Year of Publication 17.01.2019
Patent
SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME
KAMO YOSHITAKA, KOYAMA HIDETOSHI, KURAHASHI KENICHIRO, KITANO TOSHIAKI, OKAZAKI HIROYUKI
Year of Publication 23.03.2017
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Year of Publication 23.03.2017
Patent
Molecular orientation of all-trans-β-carotene in spin-coated film and in Langmuir-Blodgett film as detected by polarized optical absorption and reflection spectroscopies
HASHIMOTO, H, KIYOHARA, D, KAMO, Y, KOMUTA, H, MORI, Y
Published in Japanese Journal of Applied Physics (1996)
Published in Japanese Journal of Applied Physics (1996)
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Journal Article
BROADBAND AMPLIFIER
KUWATA, EIGO, KIRIKOSHI, TASUKU, OTSUKA, HIROSHI, YAMANAKA, KOJI, KAMO, YOSHITAKA
Year of Publication 12.06.2014
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Year of Publication 12.06.2014
Patent
A 100GHz-band GaN Transmitter Module with Triple-Multiplier for Beyond 5G
Kawamura, Yoshifumi, Yamashita, Shimpei, Nakatani, Keigo, Yamanaka, Koji, Kamo, Yoshitaka, Horiguchi, Kenichi, Kunii, Tetsuo, Amasuga, Hirotaka
Published in 2023 Asia-Pacific Microwave Conference (APMC) (05.12.2023)
Published in 2023 Asia-Pacific Microwave Conference (APMC) (05.12.2023)
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Conference Proceeding
C-Ku Broadband GaN MMIC Low-noise Amplifiers with Less than 2.5-dB Noise Figure Using Frequency-selective Parallel Feedback Circuit
Kudara, Ken, Kamioka, Jun, Kuwata, Eigo, Yamaguchi, Yutaro, Kamo, Yoshitaka, Shinjo, Shintaro
Published in 2023 Asia-Pacific Microwave Conference (APMC) (05.12.2023)
Published in 2023 Asia-Pacific Microwave Conference (APMC) (05.12.2023)
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Conference Proceeding
Photoluminescence-excitation spectroscopy as a highly sensitive probe for carrier transport processes affected by surface damages in Al x Ga 1 − x N / GaN heterostructures
Takeuchi, Hideo, Yamamoto, Yoshitsugu, Kamo, Yoshitaka, Kunii, Tetsuo, Oku, Tomoki, Shirahama, Takeo, Tanaka, Hiroyasu, Nakayama, Masaaki
Published in Journal of applied physics (22.08.2007)
Published in Journal of applied physics (22.08.2007)
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Journal Article