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Dive into the research topics where Koji Ikawa is active.

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Featured researches published by Koji Ikawa.


international microwave symposium | 2002

Use of a transparent conductive thin-film on a glass substrate in active integrated antenna arrays with double strong coupling

Kiyoshi Oshima; Nobutaka Kidera; Kazuhiko Niwano; Koji Ikawa; Ryuta Sonoda; Shigeo Kawasaki

Active Integrated Antenna (AIA) arrays were fabricated on a glass substrate using a conductive thin film, which was thin enough to be transparent to realize a transparent RF component. It can be attached to a window glass keeping its visibility. This means a potential to develop to new applications in microwave communication. The AIA arrays, here, consist of CPW, double strong coupling and 2-element array. For the oscillation using the lossy transmission line, a backing conductor and a Partly Thickened Conductor (PTC) were used. It operated at 8.54 GHz with the in-phase mode and EIRP was 14.3 dBm.


Archive | 1996

Glass antenna device for vehicles

Koji Ikawa; Fuminori Watanabe


Archive | 1990

Temperature-measuring method and distributed optical fiber temperature sensor

Yuzuru Tanabe; Koji Ikawa


Archive | 2007

HIGH FREQUENCY WAVE GLASS ANTENNA FOR AN AUTOMOBILE AND REAR WINDOW GLASS SHEET FOR AN AUTOMOBILE

Kiyoshi Oshima; Osamu Kagaya; Koji Ikawa; Toshifumi Funatsu


Archive | 2011

RFID tag and manufacturing method thereof, impedance-adjusting method and resin sheet and manufacturing method therefor

Ryuta Sonoda; Koji Ikawa; Kazuhiko Niwano; Kouji Koganezawa


Archive | 2012

WINDOWPANE FOR VEHICLE AND ANTENNA

Osamu Kagaya; Koji Ikawa; Koutarou Suenaga


Archive | 2009

HIGH FREQUENCY WAVE GLASS ANTENNA FOR AN AUTOMOBILE AND WINDOW GLASS SHEET FOR AN AUTOMOBILE WITH THE SAME

Osamu Kagaya; Kotaro Suenaga; Koji Ikawa


Archive | 2014

VEHICLE WINDOW GLASS AND ANTENNA

Osamu Kagaya; Koji Ikawa; Kotaro Suenaga


Archive | 2011

Window glass and antenna for vehicle

Osamu Kagaya; Kotaro Suenaga; Koji Ikawa


Archive | 2007

Planar antenna and window glass sheet for automobiles

Osamu Kagaya; Kiyoshi Oshima; Koji Ikawa

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Shigeo Kawasaki

Japan Aerospace Exploration Agency

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