NDLI: GaN Transistors for Power Switching and High Frequency Applications

Content Provider	IEEE Xplore Digital Library
Author	Tsurumi, N. Uemoto, Y. Sakai, H. Ueda, T. Tanaka, T. Ueda, D.
Copyright Year	2008
Description	Author affiliation: Semicond. Device Res. Center, Matsushita Electr. Ind. Co., Ltd., Nagaokakyo (Tsurumi, N.; Uemoto, Y.; Sakai, H.; Ueda, T.; Tanaka, T.; Ueda, D.)
Abstract	We review our state-of-the-art GaN-based device technologies for power switching at low frequencies and high frequency operation aiming at future millimeter-wave communication systems. These two applications are emerging in addition to the widely investigated power amplifiers at microwave frequencies for cellular base stations. As for the power switching GaN devices, we present a novel device structure called Gate Injection Transistors (GIT), which enables normally-off operation with high drain current. Here we also present the world highest breakdown voltage of 10400 V in AlGaN/GaN HFETs. In the last part of this paper, we present GaN-based MIS-HFETs which exhibits as high fmax as 203 GHz. The successful integration of low- loss microstrip lines with via-holes onto sapphire enables compact 3-stage K-band amplifier MMIC of which a small-signal gain is as high as 22d B at 26 GHz with a 3dB bandwidth of 25-29 GHz. The presented devices are promising for the two emerging future applications demonstrating high enough potential of GaN-based transistors.
Starting Page	1
Ending Page	5
File Size	574643
Page Count	5
File Format	PDF
ISBN	9781424419395
ISSN	15508781
DOI	10.1109/CSICS.2008.56
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-12
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gallium nitride Communication switching Microwave transistors Millimeter wave communication Microwave amplifiers Power amplifiers Microwave frequencies Base stations Aluminum gallium nitride HEMTs
Content Type	Text
Resource Type	Article

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