Search Results:　 1-20 of 53

SUEMATSU Noriharu , Tsutsumi Koji , Shinjo Shintaro

ソフトウェア無線(SDR)端末用マルチバンド/マルチモード送受信機を実現するには,広帯域なRFデバイスと周波数可変(チューナブル)なRFデバイスを組み合わせる必要がある.広帯域なデバイスで構成できるRF部としては,変復調回路を含むコンバータ回路があげられる.これらの回路に関して,いくつかの構成例を示しながら,その動作を説明する.

IEICE technical report 106(188), 3-6, 2006-07-20

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ONO Masayoshi , SUEMATSU Noriharu , KUBO Shunji , NAKAJIMA Kensuke , IYAMA Yoshitada , TAKAGI Tadashi , ISHIDA Osami

… For on-chip matching Si-MMIC fabricated on a conventional low resistivity Si substrate, the loss of on-chip inductors is quite high due to the dielectric loss of the substrate. … In order to reduce the loss of on-chip matching circuit, the use of high resistivity Si substrate is quite effective. …

IEICE transactions on electronics E84-C(7), 923-930, 2001-07-01

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Chun Y.H. , Kang T.S. , An D. , Kim J.S. , Rhee J.K. , Park H.M. , Jung J.H. , Park H.C. , Seo Y.K. , Song K.M.

… Tx MMIC chipsets based on 0.18 μm CMOS technology have been designed, fabricated, and tested. …

IEICE technical report. Electron devices 101(162), 37-41, 2001-06-30

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MAEDA K. , SUEMATSU N. , TAKAGI T.

Proceedings of the Society Conference of IEICE 2000年エレクトロニクスソサイエティ大会講演論文集(1), 117, 2000-09-07

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Kanda Atsushi , Muraguchi Masahiro

… SOI技術と高抵抗シリコン基板の組み合わせにより、携帯電話の無線周波数帯においてシリコンCMOS MMIC SPDTスイッチで始めて、GaAs MMICスイッチに匹敵する低損失、高アイソレーション特性を実現した。 … また将来的には、他のSi RF回路やベースバンド回路との1チップLSI化も期待できる。 …

IEICE technical report. Electron devices 100(149), 79-83, 2000-06-23

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MAEDA K. , SUEMATSU N. , TAKAGI T.

Proceedings of the IEICE General Conference 2000年.エレクトロニクス(1), 73, 2000-03-07

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Kanda Atsushi , Muraguchi Masahiro

Proceedings of the IEICE General Conference 2000年.エレクトロニクス(1), 61, 2000-03-07

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Suematsu N. , Taniguchi E. , Nakajima K. , Maeda K. , Murakami S. , Noda T. , Takagi T.

Proceedings of the Society Conference of IEICE 1999年.エレクトロニクスソサイエティ大会(1), 65, 1999-08-16

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Itoh Y. , Ono M.

… Recently, as Si devices show high speed and high frequency operation, inductive components with smaller size are being fabricated on dielectric layers over Si substates. … As an application of inductive components to microwave circuits, the design, fabrication and performance of the L-band and C-band low-noise Si-MMIC amplifiers are presented. …

Journal of Magnetics Society of Japan 23(7), 1834-1840, 1999-07-01

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Yamaguchi M. , Suezawa K. , Takahasi Y. , Arai K. I. , Kikuchi S. , Shimada Y. , Li W. D. , Tanabe S. , Ito K.

We microfabricated magnetic thin-film inductors for use as rf front-end receiver impedance matchers in 1-GHz-drive mobile commutication handsets. This is the first practical application of soft magnet …

Journal of Magnetics Society of Japan 23(4-2), 1649-1652, 1999-04-15

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