Gallium-nitride (GaN)
GaN-based semiconductors are wide bandgap semiconductors that feature a higher breakdown-voltage (threshold) than conventional semiconductor materials, such as silicon (Si) or gallium-arsenide (GaAs).
 High-electron mobility transistor (HEMT)
A field-effect transistor that utilizes the electron movement at the junction between two semiconductors with different band gaps—as electron mobility in HEMTs is faster than that of conventional semiconductors. Fujitsu led the industry with its development of HEMT technology in 1980, and HEMTs, as a core technology underpinning the network-based society, are currently used in a wide range of core technologies for IT applications, including satellite transceivers, mobile phones, GPS-based navigations systems, and broadband wireless networking systems.
 C-band, X-band, Ku-band
These are common names for each frequency band. The C-band covers 4-8 GHz and is not prone to attenuation from rain or fog. Applications that employ the C-band include satellite communications, fixed wireless networking, wireless access networking, air-traffic control radar, weather radar, etc. The X-band covers 8-12 GHz and has only minimal impact from crosstalk and interference, thereby making it difficult to intercept or jam. The X-band is often used in satellite communications, air-traffic control radar, and weather radar. The Ku-band covers 12-18 GHz, and has only minimal impact from crosstalk and interference, thus making it difficult to intercept or jam. Ku-band applications include satellite communications and various types of radar.
Founded in 1968 as a wholly owned subsidiary of Fujitsu Limited, Fujitsu Laboratories Limited is one of the premier research centers in the world. With a global network of laboratories in Japan, China, the United States and Europe, the organization conducts a wide range of basic and applied research in the areas of Next-generation Services, Computer Servers, Networks, Electronic Devices and Advanced Materials. For more information, please see: http://jp.fujitsu.com/labs/en.
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This press release has been revised as of December 17, 2018.
Date: 06 June, 2011
City: Kawasaki, Japan
Company: Fujitsu Laboratories Ltd., , , , , , , , , ,