Mamoru Ugajin

Publication Activity (10 Years)

Years Active: 2002-2023
Publications (10 Years): 6

Top Topics

Image Structure

Morphological Filters

Top Venues

IEICE Electron. Express

IEICE Trans. Electron.

IEICE Trans. Commun.

Publications

Mamoru Ugajin, Yuya Kakei, Nobuyuki Itoh
A Study of Phase-Adjusting Architectures for Low-Phase-Noise Quadrature Voltage-Controlled Oscillators. IEICE Trans. Electron. 106 (2) (2023)
Mamoru Ugajin, Yuya Kakei, Nobuyuki Itoh
A quadrature voltage-controlled oscillator using phase-adjusting architecture for suppressing phase noise. IEICE Electron. Express 18 (10) (2021)
Takefumi Hiraguri, Kentaro Nishimori, Yoshiaki Morino, Mamoru Ugajin, Hideaki Yoshino
Novel Access Control Scheme with Collision Detection Utilizing MIMO Transmission Procedure in WLAN Systems. IEICE Trans. Commun. (7) (2018)
Mamoru Ugajin, Takuya Shindo, Tsuneo Tsukahara, Takefumi Hiraguri
)-Mixer Architecture for a High-Image-Rejection Wireless Receiver with an N-Phase Active Complex Filter. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (4) (2017)
Mamoru Ugajin, Yuta Kobayashi, Tsuneo Tsukahara
High-image-rejection wireless-receiver architecture with a 3-phase active RC complex filter. IEICE Electron. Express 12 (12) (2015)
Mamoru Ugajin, Takuya Shindou
Image-rejection-performance assessment of double-conversion wireless receiver with 3-phase complex filter using Montecarlo simulation. ISCIT (2015)
Mitsuo Nakamura, Mamoru Ugajin, Mitsuru Harada
A 280-MHz CMOS Intra-Symbol Intermittent RF Front End for Adaptive Power Reduction of Wireless Receivers According to Received-Signal Intensity in Sensor Networks. IEICE Trans. Electron. (1) (2013)
Mamoru Ugajin
Proposal of channel-grouping wireless-transceiver architecture for suppressing local-oscillator phase noise. IEICE Electron. Express 9 (2) (2012)
Shoichi Oshima, Mamoru Ugajin, Mitsuru Harada
Third-Harmonic Envelope Feedback Method for High-Efficiency Linear Power Amplifiers. IEICE Trans. Electron. (4) (2012)
Mamoru Ugajin, Toshishige Shimamura, Shin'ichiro Mutoh, Mitsuru Harada
Design and Performance of a Sub-Nano-Ampere Two-Stage Power Management Circuit in 0.35-µm CMOS for Dust-Size Sensor Nodes. IEICE Trans. Electron. (7) (2011)
Kenji Suzuki, Mamoru Ugajin, Mitsuru Harada
A 5th-Order SC Complex BPF Using Series Capacitances for Low-IF Narrowband Wireless Receivers. IEICE Trans. Electron. (5) (2011)
Kenji Suzuki, Mamoru Ugajin, Mitsuru Harada
A 1-Mbps 1.6-µA Active-RFID CMOS LSI for the 300-MHz Frequency Band with an All-Digital RF Transmitting Scheme. IEICE Trans. Electron. (6) (2011)
Mamoru Ugajin, Akihiro Yamagishi, Kenji Suzuki, Mitsuru Harada
Operation of Ultra-Low Leakage Regulator Circuits with SOI and Bulk Technologies for Controlling Wireless Transceivers. IEICE Trans. Electron. (10) (2011)
Toshishige Shimamura, Mamoru Ugajin, Kenji Suzuki, Kazuyoshi Ono, Norio Sato, Kei Kuwabara, Hiroki Morimura, Shin'ichiro Mutoh
Nano-watt power management and vibration sensing on a dust-size batteryless sensor node for ambient intelligence applications. ISSCC (2010)
Mamoru Ugajin, Akihiro Yamagishi, Junichi Kodate, Mitsuru Harada, Tsuneo Tsukahara
Macromodels in the frequency domain analysis of microwave resonators. IEEE J. Solid State Circuits 39 (4) (2004)
Mamoru Ugajin, Akihiro Yamagishi, Junichi Kodate, Mitsuru Harada, Tsuneo Tsukahara
Design techniques for a 1-V operation Bluetooth RF transceiver. CICC (2004)
Tsuneo Tsukahara, Mitsuru Harada, Mamoru Ugajin, Junichi Kodate, Akihiro Yamagishi
Design methodology of low-power CMOS RF-ICs. ASP-DAC (2003)
Mamoru Ugajin, Tsuneo Tsukahara
A 1-V 2.4-GHz FSK receiver with a complex BPF and a frequency doubler in CMOS/SOI. CICC (2003)
Mamoru Ugajin, Junichi Kodate, Tsuneo Tsukahara
A 1-V 2-GHz RF Receiver with 49 dB of Image Rejection in CMOS/SIMOX. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (2) (2002)