Gallium Nitride Power Transistor for Wireless Base Stations

January 12, 2005

According to JCN Network, Oki Electric has announced that it has started sample provisioning of it's Gallium Nitride High Electron Mobility Transistor (GaN-HEMT), a high frequency wave power transistor for wireless base stations.
The new transistor, using gallium nitride material, will enable a reduction in size and power consumption for base stations for 3G mobile phones and PHS, and wireless telecom base stations for wireless Metropolitan Area Network (MAN).

GaN-HEMT can operate at over three to five times higher voltage than that of GaAs-HEMT, which enables higher voltage power. On the other hand, the power loss in peripheral component (ohm loss) is reduced because the operating current can be decreased by 1/3 to 1/5, which contributes to lowering the power consumption of the entire circuit. Because of these advantages, a product for high output wireless and wireless base stations using GaN-HEMT are highly demanded.

Oki plans sample shipment from early 2006, after prior evaluations with specific customers, and volume production from the latter half of 2006. By 2008, Oki aims to achiever 30% of the GaN high frequency power device market in the world.

Explore further: Rice wins $2.4 million to study many-antenna wireless

Related Stories

Rice wins $2.4 million to study many-antenna wireless

November 24, 2015

Rice University researchers have won $2.4 million from the National Science Foundation (NSF) to conduct the most extensive experimental research yet of wireless technology that uses 100 or more antennas per base station to ...

Solar vehicle charging at home

November 2, 2015

Owners of home photovoltaic systems will soon be able to make their households even more sustainable, because PV power is also suitable for charging personal electronic vehicles. A home energy management system created by ...

Gift Guide: Kiddie tech beyond video games, tablets

November 19, 2015

What to get a tech-savvy kid who's tired of the same old tablets and video games? New toys this year range from easy-to-use sets for building circuits to a talking dinosaur powered by IBM's Watson artificial-intelligence ...

A new measure for wireless power transfer

October 8, 2015

Wireless power transfer has many promising applications, such as contactless powering, electric vehicles, and energy harvesting. To construct a wireless power-transfer system, a "wireless transfer coupler" is necessary to ...

Recommended for you

Roboticists learn to teach robots from babies

December 1, 2015

Babies learn about the world by exploring how their bodies move in space, grabbing toys, pushing things off tables and by watching and imitating what adults are doing.

A quantum of light for materials science

December 1, 2015

Computer simulations that predict the light-induced change in the physical and chemical properties of complex systems, molecules, nanostructures and solids usually ignore the quantum nature of light. Scientists of the Max-Planck ...

Exiled exoplanet likely kicked out of star's neighborhood

December 1, 2015

A planet discovered last year sitting at an unusually large distance from its star - 16 times farther than Pluto is from the sun - may have been kicked out of its birthplace close to the star in a process similar to what ...


Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.