Mapping of electromagnetic waves generated by free-running self-oscillating devices

Abstract Near-field mapping has proven to be a powerful technique for characterizing and diagnosing antennas in the microwave frequency range. However, conventional measurement methods based on a network analyzer cannot be applied to on-chip antenna devices extensively studied for future wireless co...

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Autores principales:	Shintaro Hisatake, Hikaru Nakajima, Hai Huy Nguyen Pham, Hirohisa Uchida, Makoto Tojyo, Yoichi Oikawa, Kunio Miyaji, Tadao Nagatsuma
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b4e27ccb2c634a47b97c51686c7e57da
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spelling	oai:doaj.org-article:b4e27ccb2c634a47b97c51686c7e57da2021-12-02T11:52:40ZMapping of electromagnetic waves generated by free-running self-oscillating devices10.1038/s41598-017-09802-02045-2322https://doaj.org/article/b4e27ccb2c634a47b97c51686c7e57da2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-09802-0https://doaj.org/toc/2045-2322Abstract Near-field mapping has proven to be a powerful technique for characterizing and diagnosing antennas in the microwave frequency range. However, conventional measurement methods based on a network analyzer cannot be applied to on-chip antenna devices extensively studied for future wireless communication in the millimeter wave (mm-wave) (30–300 GHz) and terahertz (THz) wave (0.1–10 THz) frequency regions. Here, we present a new asynchronous mapping technique to investigate the spatial distribution of not only the amplitude but also the phase of the electric field generated by free-running, self-oscillating generators including CMOS oscillators, Gunn oscillators, resonant tunneling diodes, and quantum cascaded lasers. Using a photonic-electronic hybrid measurement system, a wide frequency coverage, minimal invasiveness of the field to be measured, and phase distribution measurements with a theoretically-limited sensitivity are simultaneously achieved. As a proof-of-concept experiment, we demonstrate the mapping of a mm-wave (77 GHz) generated by a free-running Gunn oscillator and antenna characterization based on near-to-far field transformation.Shintaro HisatakeHikaru NakajimaHai Huy Nguyen PhamHirohisa UchidaMakoto TojyoYoichi OikawaKunio MiyajiTadao NagatsumaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-6 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shintaro Hisatake Hikaru Nakajima Hai Huy Nguyen Pham Hirohisa Uchida Makoto Tojyo Yoichi Oikawa Kunio Miyaji Tadao Nagatsuma Mapping of electromagnetic waves generated by free-running self-oscillating devices
description	Abstract Near-field mapping has proven to be a powerful technique for characterizing and diagnosing antennas in the microwave frequency range. However, conventional measurement methods based on a network analyzer cannot be applied to on-chip antenna devices extensively studied for future wireless communication in the millimeter wave (mm-wave) (30–300 GHz) and terahertz (THz) wave (0.1–10 THz) frequency regions. Here, we present a new asynchronous mapping technique to investigate the spatial distribution of not only the amplitude but also the phase of the electric field generated by free-running, self-oscillating generators including CMOS oscillators, Gunn oscillators, resonant tunneling diodes, and quantum cascaded lasers. Using a photonic-electronic hybrid measurement system, a wide frequency coverage, minimal invasiveness of the field to be measured, and phase distribution measurements with a theoretically-limited sensitivity are simultaneously achieved. As a proof-of-concept experiment, we demonstrate the mapping of a mm-wave (77 GHz) generated by a free-running Gunn oscillator and antenna characterization based on near-to-far field transformation.
format	article
author	Shintaro Hisatake Hikaru Nakajima Hai Huy Nguyen Pham Hirohisa Uchida Makoto Tojyo Yoichi Oikawa Kunio Miyaji Tadao Nagatsuma
author_facet	Shintaro Hisatake Hikaru Nakajima Hai Huy Nguyen Pham Hirohisa Uchida Makoto Tojyo Yoichi Oikawa Kunio Miyaji Tadao Nagatsuma
author_sort	Shintaro Hisatake
title	Mapping of electromagnetic waves generated by free-running self-oscillating devices
title_short	Mapping of electromagnetic waves generated by free-running self-oscillating devices
title_full	Mapping of electromagnetic waves generated by free-running self-oscillating devices
title_fullStr	Mapping of electromagnetic waves generated by free-running self-oscillating devices
title_full_unstemmed	Mapping of electromagnetic waves generated by free-running self-oscillating devices
title_sort	mapping of electromagnetic waves generated by free-running self-oscillating devices
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/b4e27ccb2c634a47b97c51686c7e57da
work_keys_str_mv	AT shintarohisatake mappingofelectromagneticwavesgeneratedbyfreerunningselfoscillatingdevices AT hikarunakajima mappingofelectromagneticwavesgeneratedbyfreerunningselfoscillatingdevices AT haihuynguyenpham mappingofelectromagneticwavesgeneratedbyfreerunningselfoscillatingdevices AT hirohisauchida mappingofelectromagneticwavesgeneratedbyfreerunningselfoscillatingdevices AT makototojyo mappingofelectromagneticwavesgeneratedbyfreerunningselfoscillatingdevices AT yoichioikawa mappingofelectromagneticwavesgeneratedbyfreerunningselfoscillatingdevices AT kuniomiyaji mappingofelectromagneticwavesgeneratedbyfreerunningselfoscillatingdevices AT tadaonagatsuma mappingofelectromagneticwavesgeneratedbyfreerunningselfoscillatingdevices
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Mapping of electromagnetic waves generated by free-running self-oscillating devices

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