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Dive into the research topics where Keiji Yoshida is active.

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Featured researches published by Keiji Yoshida.


ieee region 10 conference | 2010

Design of the low-noise LC oscillator with the digital frequency tuning based on the composite resonator

O. Nizhnik; Ramesh Pokharel; Haruichi Kanaya; Keiji Yoshida

This paper presents a low phase noise differential LC oscillator with the new resonator type. The resonator architecture is an LC tank with an additional pair of serial resonators. The circuit was implemented in 0.18 im CMOS technology and the measured phase noise reached −131.3 dBc at 3 MHz offset from a 6.776 GHz carrier with a power dissipation of 1.60 mW and the figure of merit (FOM) is −196.3 dB. The proposed area of application is the core of the local oscillator in a low-power wireless transceiver.


Archive | 2006

Filter Characteristics Regulating Method, Filter Characteristics Regulator, Filter, and Communication Apparatus

Keiji Yoshida; Haruichi Kanaya


電子情報通信学会技術研究報告. ED, 電子デバイス | 2013

Low-loss On Chip CMOS Patterned Ground Coplanar Waveguide Transmission Line for Millimeter-wave Technology (電子デバイス)

Dayang Azra Awang Mat; Ramesh Pokharel; Rohana Sapawi; Haruichi Kanaya; Keiji Yoshida


Proceedings of the IEICE General Conference | 2011

B-1-84 Development of a 900MHz band One-Sided Directional Rectenna on flexible substrate

Takuya Hirabaru; Haruichi Kanaya; Pokharel Ramesh; Keiji Yoshida


Record of JCEEE in Kyushu | 2010

Compact Ultra-Wideband Band Pass Filter with Band Elimination Characteristics

Hirofumi Kuwamoto; Ruibing Dong; Ramesh Pokharel; Haruichi Kanaya; Keiji Yoshida


Proceedings of the IEICE General Conference | 2010

C-12-4 Improvement of linearity for 5.2GHz direct conversion mixer

Yoichi Yano; Noboru Koga; Ahmed Abdelghany Mahmoud; Pokharel Ramesh; Haruichi Kanaya; Keiji Yoshida


Archive | 2010

PAPER Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies Low Phase Noise, 18kHz Frequency Tuning Step, 5GHz, 15bit Digitally Controlled Oscillator in 0.18µm CMOS Technology

Ramesh Pokharel; Kenta Uchida; Abhishek Tomar; Keiji Yoshida


Proceedings of the IEICE General Conference | 2009

B-1-156 Design of Miniaturaized One-Sided Directional Planer Antenna withλ/4 Resonance

Kouichi Tsumura; Ramesh Pokharel; Haruichi Kanaya; Keiji Yoshida


Proceedings of the IEICE General Conference | 2009

C-12-55 Design of Low Noise Amplifier for Ultra Wide Band with On-Chip Transmission-Line Filter

Shutaro Minami; Haruichi Kanaya; Keiji Yoshida


Record of Joint Conference of Electrical and Electronics Engineers in Kyushu | 2008

Development of CMOS DCO for 5.2GHz-band WLAN

Kenta Uchida; K Ramesh Pokharel; Haruichi Kanaya; Keiji Yoshida

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Ramesh Pokharel

Jordan University of Science and Technology

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Hisashi Shimakage

National Institute of Information and Communications Technology

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