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1

[IEEE 2009 IEEE MTT-S International Microwave Symposium Digest (MTT) - Boston, MA, USA (2009.06.7-2009.06.12)] 2009 IEEE MTT-S International Microwave Symposium Digest - C-band 340-W and X-band 100-W GaN power amplifiers with over 50-% PAE

Shigematsu, H., Inoue, Y., Akasegawa, A., Yamada, M., Masuda, S., Kamada, Y., Yamada, A., Kanamura, M., Ohki, T., Makiyama, K., Okamoto, N., Imanishi, K., Kikkawa, T., Joshin, K., Hara, N.

Year:

2009

Language:

english

File:

PDF, 614 KB

english, 2009

2

[IEEE 2008 38th European Microwave Conference (EuMC) - Amsterdam, Netherlands (2008.10.27-2008.10.31)] 2008 38th European Microwave Conference - ACLR Improvement of a 5-GHz Power Amplifier Using High-Temperature Superconducting Reaction-Type Transmitting Filters

Futatsumori, Shunichi, Hikage, Takashi, Nojima, Toshio, Akasegawa, Akihiko, Nakanishi, Teru, Yamanaka, Kazunori

Year:

2008

Language:

english

File:

PDF, 258 KB

english, 2008

3

[IEEE 2010 IEEE/MTT-S International Microwave Symposium - MTT 2010 - Anaheim, CA, USA (2010.05.23-2010.05.28)] 2010 IEEE MTT-S International Microwave Symposium - Over 10W C-Ku band GaN MMIC non-uniform distributed power amplifier with broadband couplers

Masuda, Satoshi, Akasegawa, Akihiko, Ohki, Toshihiro, Makiyama, Kozo, Okamoto, Naoya, Imanishi, Kenji, Kikkawa, Toshihide, Shigematsu, Hisao

Year:

2010

Language:

english

File:

PDF, 1.14 MB

english, 2010

4

Novel dual mode disk-shaped resonator filter with HTS thin film

Ishii, M, Akasegawa, A, Nakanishi, T, Yamanaka, K

Journal:

Journal of Physics Conference Series

Year:

2008

Language:

english

File:

PDF, 333 KB

english, 2008

5

Power handling improvement by an upper conducting layer for 4 GHz-band HTS microstrip-disk filters with dual-mode

Akihiko Akasegawa, Kazunori Yamanaka, Teru Nakanishi, Manabu Kai

Journal:

Physica C: Superconductivity

Year:

2006

Language:

english

File:

PDF, 442 KB

english, 2006

6

Intermodulation distortion characteristics of a 4 GHz-band HTS microstrip-disk filter

Kazunori Yamanaka, Akihiko Akasegawa, Manabu Kai, Teru Nakanishi

Journal:

Physica C: Superconductivity

Year:

2006

Language:

english

File:

PDF, 445 KB

english, 2006

7

Microwave characteristics of interconnects for 4 GHz-band HTS power devices

K. Yamanaka, T. Nakanishi, A. Akasegawa

Journal:

Physica C: Superconductivity

Year:

2007

Language:

english

File:

PDF, 438 KB

english, 2007

8

Power handling capability improvement of HTS filter with sliced microstrip line resonators

S. Takeuchi, M. Osaka, H. Kinouchi, S. Ono, A. Saito, A. Akasegawa, T. Nakanishi, A. Kawakami, K. Yamanaka, K. Kurihara, S. Ohshima

Journal:

Physica C: Superconductivity

Year:

2008

Language:

english

File:

PDF, 258 KB

english, 2008

9

A mechanism for tuning 5 GHz HTS filters

M. Ohsaka, S. Takeuchi, S. Ono, J.H. Lee, A. Saito, A. Akasegawa, K. Yamanaka, K. Kurihara, S. Ohshima

Journal:

Physica C: Superconductivity

Year:

2008

Language:

english

File:

PDF, 288 KB

english, 2008

10

5 GHz HTS power filters with TM-mode microstrip-disk resonators

K. Yamanaka, M. Ishii, A. Akasegawa, T. Nakanishi, J.D. Baniecki, K. Kurihara

Journal:

Physica C: Superconductivity

Year:

2008

Language:

english

File:

PDF, 726 KB

english, 2008

11

Film-thickness dependence of the microwave properties of YBCO films

Akihiko Akasegawa, Kazunori Yamanaka, Teru Nakanishi

Journal:

Physica C: Superconductivity

Year:

2000

Language:

english

File:

PDF, 132 KB

english, 2000

12

Design of a Mechanical Tuning for Superconducting Microwave Power Filters

Kazunori Yamanaka, Kazuaki Kurihara, Akihiko Akasegawa, Masao Kondo

Journal:

Journal of Superconductivity and Novel Magnetism

Year:

2007

Language:

english

File:

PDF, 475 KB

english, 2007

13

HTS dual-mode filters with power property improved by a tunable dielectric plate

A. Akasegawa, K. Sato, K. Yamanaka, T. Nakanishi, K. Kurihara

Journal:

Physica C: Superconductivity

Year:

2008

Language:

english

File:

PDF, 351 KB

english, 2008

14

Notes on the Microstructure of Some Coals From North China

Journal:

Acta Geologica Sinica - English Edition (Wiley-Blackwell)

Year:

1926

Language:

english

File:

PDF, 626 KB

english, 1926

15

[IEEE 2007 Asia-Pacific Microwave Conference - (APMC 2007) - Bangkok, Thailand (2007.12.11-2007.12.14)] 2007 Asia-Pacific Microwave Conference - High-Tc Superconducting Dual-mode Disk Resonators with Attenuation Poles using Ground-slot

Akasegawa, Akihiko, Nakanishi, Teru, Yamanaka, Kazunori, Ishii, Masatoshi

Year:

2007

Language:

english

File:

PDF, 1.37 MB

english, 2007

16

[IEEE 2010 IEEE/MTT-S International Microwave Symposium - MTT 2010 - Anaheim, CA, USA (2010.05.23-2010.05.28)] 2010 IEEE MTT-S International Microwave Symposium - Over 10W C-Ku band GaN MMIC non-uniform distributed power amplifier with broadband couplers

Masuda, S., Akasegawa, A., Ohki, T., Makiyama, K., Okamoto, N., Imanishi, K., Kikkawa, T., Shigematsu, H.

Year:

2010

Language:

english

File:

PDF, 98 KB

english, 2010

17

Precise Measurement of IMD Behavior in 5-GHz HTS Resonators and Evaluation of Nonlinear Microwave Characteristics

Futatsumori, S., Furuno, M., Hikage, T., Nojima, T., Akasegawa, A., Nakanishi, T., Yamanaka, K.

Journal:

IEEE Transactions on Appiled Superconductivity

Year:

2009

Language:

english

File:

PDF, 285 KB

english, 2009

18

[IEEE 2007 Asia-Pacific Microwave Conference - (APMC 2007) - Bangkok, Thailand (2007.12.11-2007.12.14)] 2007 Asia-Pacific Microwave Conference - HTS Reaction-Type Transmitting Filter Based Upon Split Open-Ring Resonators with Surface Current Density Reduction Technique

Futastumori, Shunichi, Hikage, Takashi, Nojima, Toshio, Akasegawa, Akihiko, Nakanishi, Teru, Yamanaka, Kazunori

Year:

2007

Language:

english

File:

PDF, 1.73 MB

english, 2007

19

RF Power Dependence of Microstrip Disk Resonators With YBCO Films for 4 GHz Band

Yamanaka, K., Akasegawa, A., Kai, M., Nakanishi, T.

Journal:

IEEE Transactions on Appiled Superconductivity

Year:

2005

Language:

english

File:

PDF, 274 KB

english, 2005

20

HTS split open-ring resonators with improved power-handling capability for reaction-type transmitting filters

Futatsumori, S., Hikage, T., Nojima, T., Akasegawa, A., Nakanishi, T., Yamanaka, K.

Journal:

Electronics Letters

Year:

2007

Language:

english

File:

PDF, 99 KB

english, 2007

21

A 5 GHz high-temperature superconducting reaction-type transmitting filter based upon split open-ring resonators

S. Futatsumori, T. Hikage, T. Nojima, A. Akasegawa, T. Nakanishi, K. Yamanaka

Year:

2008

Language:

english

File:

PDF, 937 KB

english, 2008

22

[IEEE 2005 Asia-Pacific Microwave - Suzhou, China (04-07 Dec. 2005)] 2005 Asia-Pacific Microwave Conference Proceedings - 4 GHz Band HTS Receiving-Filters for a Compact Cryogenic Receiver Front-End

Akasegawa, A., Yamanaka, K., Nakanishi, T., Manabu Kai,

Year:

2005

Language:

english

File:

PDF, 260 KB

english, 2005

23

HTS microstrip disk resonator with an upper dielectric layer for 4GHz

Yamanaka, Kazunori, Kai, Manabu, Akasegawa, Akihiko, Nakanishi, Teru

Journal:

Journal of Physics Conference Series

Year:

2006

Language:

english

File:

PDF, 116 KB

english, 2006

24

Effect of YBCO film characteristics on RF properties of MSL resonators with these films

Yamanaka, Kazunori, Akasegawa, Akihiko, Nakanishi, Teru

Journal:

MRS Proceedings

Year:

2000

Language:

english

File:

PDF, 1.69 MB

english, 2000

25

Erratum: A Resonator for Tunable Superconducting Power Filters with Cavities for 5 GHz Band [IEICE Transactions on Electronics E93.C (2010) , No. 4 pp.480-485]

YAMANAKA, Kazunori, KURIHARA, Kazuaki, AKASEGAWA, Akihiko

Journal:

IEICE Transactions on Electronics

Year:

2010

File:

PDF, 368 KB

2010

26

The Objet after Stalin

Genpei, Akasegawa

Journal:

Year:

2015

Language:

english

File:

PDF, 1.56 MB

english, 2015

27

Optically stimulated luminescence signal resetting of quartz gouge during subâseismic to seismic frictional sliding; a case study using graniteâderived quartz

Oohashi, Kiyokazu, Minomo, Yuki, Akasegawa, Koji, Hasebe, Noriko, Miura, Kazumasa

Journal:

Journal of Geophysical Research: Solid Earth

Year:

2020

File:

PDF, 2.29 MB

2020

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