Infineon Makes UMTS Phones Usable Worldwide

Jun 14, 2005

New features such as fast data transmission and new applications like recording, sending and receiving video clips or receiving television while on the move are generally associated with the new UMTS (Universal Mobile Telecommunications System) mobile radio standard. But "universal" does not automatically mean that a UMTS handset will also work anywhere in the world. A total of six frequency blocks have been defined for providing UMTS services worldwide. To make next-generation mobile phones “universal” in the truest sense of the word, Infineon Technologies AG recently introduced a new chip which accommodates the transmit and receive electronics for all six frequency bands in a footprint measuring only 5mm on 5mm. SMARTi 3G is the name of the smart chip, which Infineon unveiled this week at an industry conference in California.

Mobile radio devices include a radio-frequency transceiver which is responsible for transmitting and receiving the signals. The term "transceiver" is a composite formed from the two words “transmitter” and “receiver”. Prior to transmission, the SMARTi 3G converts the electronic signals for voice or data into high-frequency signals and amplifies them. It converts received high-frequency signals into low-frequency electronic signals, which are then converted into voice and data in the phone’s processor.

Samples of the SMARTi 3G are already available and leading manufacturers worldwide are integrating the chip into the next generation of UMTS handsets. Infineon is a major player when it comes to transmit and receive electronics for mobile phones. Last year the company sold more than 170 million transceiver chips. This means that roughly one in four mobile phones worldwide operates with an Infineon transceiver.

The SMARTi 3G chip is manufactured using silicon process technology with microstructures of only 130 nanometers (a human hair is 500 times thicker). At 7.2 megabits per second, it meets the requirements of next-generation UMTS telephones for data transmission from the base station to the mobile device. The chip was developed in Germany and Austria and is produced in France.

Explore further: Oculus unveils new prototype VR headset

add to favorites email to friend print save as pdf

Related Stories

45-nanometer chips for ultra-fast WiFi

Jul 29, 2009

(PhysOrg.com) -- Powerful new radio technologies that promise blisteringly fast WiFi have been given a boost by a team of European researchers’ cutting-edge work on miniscule microchips.

Infineon, Motorola to Develop 3G Radio Frequency Chip

Sep 25, 2007

Infineon Technologies AG today announced that it has signed an agreement with Motorola to develop a new multi-mode, single-chip 3G radio frequency (RF) transceiver based on Infineon’s SMARTi UE chip.

Recommended for you

Oculus unveils new prototype VR headset

12 hours ago

Oculus has unveiled a new prototype of its virtual reality headset. However, the VR company still isn't ready to release a consumer edition.

Wireless sensor transmits tumor pressure

18 hours ago

The interstitial pressure inside a tumor is often remarkably high compared to normal tissues and is thought to impede the delivery of chemotherapeutic agents as well as decrease the effectiveness of radiation ...

Tim Cook puts personal touch on iPhone 6 launch

20 hours ago

Apple chief Tim Cook personally kicked off sales of the iPhone 6, joining in "selfies" and shaking hands with customers Friday outside the company's store near his Silicon Valley home.

Team improves solar-cell efficiency

Sep 19, 2014

New light has been shed on solar power generation using devices made with polymers, thanks to a collaboration between scientists in the University of Chicago's chemistry department, the Institute for Molecular ...

Calif. teachers fund to boost clean energy bets

Sep 19, 2014

The California State Teachers' Retirement System says it plans to increase its investments in clean energy and technology to $3.7 billion, from $1.4 billion, over the next five years.

User comments : 0