Dr. Hiroyo Ogawa Profile

Dr. Hiroyo Ogawa

at NICT

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Publications (4)

Proceedings Article | 10 September 2007 Paper

R&D on wireless broadband communication systems: new generation ubiquitous mobile network

Hiroyo Ogawa

Proceedings Volume 6776, 677603 (2007) https://doi.org/10.1117/12.726809

KEYWORDS: Telecommunications, Local area networks, Network architectures, Field programmable gate arrays, Mobile communications, Intelligence systems, Standards development, Wireless broadband, Communication and information technologies, Information technology

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Proceedings Article | 10 June 1994 Paper

Intensity modulation of LiNbO3 electro-optic modulator by free-space radiation coupling

Elisabeth Penard, Kazuhiro Matsui, Hiroyo Ogawa

Proceedings Volume 2155, (1994) https://doi.org/10.1117/12.177427

KEYWORDS: Modulation, Antennas, Electrooptic modulators, Modulators, Free space, Electrodes

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Proceedings Article | 10 June 1994 Paper

Optically controlled multiple beam forming and steering network for phased-array antenna

Kohji Horikawa, Masashi Shimizu, Hiroyo Ogawa

Proceedings Volume 2155, (1994) https://doi.org/10.1117/12.177414

KEYWORDS: Phased array optics, Antennas, Phased arrays, Active optics, Multiplexing, Microwave radiation

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Proceedings Article | 2 December 1992 Paper

Fiber optic link architectural comparison for millimeter-wave transmission

David Polifko, Hiroyo Ogawa

Proceedings Volume 1703, (1992) https://doi.org/10.1117/12.138385

KEYWORDS: Semiconductor lasers, Modulation, Extremely high frequency, Photodiodes, Modulators, Microwave radiation, Oscillators, Fiber optics, Signal attenuation, Signal detection

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