KAIST develops a low-power 60 GHz radio frequency chip for mobile devices

Mar 29, 2013

As the capacity of handheld devices increases to accommodate a greater number of functions, these devices have more memory, larger display screens, and the ability to play higher definition video files. If the users of mobile devices, including smartphones, tablet PCs, and notebooks, want to share or transfer data on one device with that of another device, a great deal of time and effort are needed.

As a possible method for the speedy transmission of large data, researchers are studying the adoption of gigabits per second (Gbps) wireless communications operating over the 60 (GHz) frequency band. Some commercial approaches have been introduced for full-HD video streaming from a fixed source to a display by using the 60 GHz band. But mobile applications have not been developed yet because the 60 GHz (RF) circuit consumes hundreds of milliwatts (mW) of DC power.

Professor Chul Soon Park from the Department of Electrical Engineering at the Korea Advanced Institute of Science and Technology (KAIST) and his research team recently developed a low-power version of the 60 GHz radio frequency integrated circuit (RFIC). Inside the circuit are an energy-efficient modulator performing amplification as well as modulation and a sensitivity-improved receiver employing a gain boosting demodulator.

The research team said that their RFIC draws as little as 67 mW of power in the 60 GHz , consuming 31mW to send and 36mW to receive large volumes of data. RFIC is also small enough to be mounted on smartphones or notebooks, requiring only one chip (its width, length, and height are about 1 mm) and one antenna (4x5x1 mm3) for sending and receiving data with an integrated switch.

Professor Park, Director of the Intelligent Radio Engineering Center at KAIST, gave an upbeat assessment of the potential of RFIC for future applications:

This video is not supported by your browser at this time.

"What we have developed is a low-power 60-GHz RF chip with a of 10.7 gigabits per second. In tests, we were able to stream uncompressed full-HD videos from a smartphone or notebook to a display without a cable connection. Our chip can be installed on or even on cameras so that the devices are virtually connected to other devices and able to exchange large data with each other."

Explore further: Indonesia passes law to tap volcano power

add to favorites email to friend print save as pdf

Related Stories

DOCOMO develops compact multi-band power amplifier

May 20, 2011

NTT DOCOMO today announced that it has developed a prototype power amplifier for six frequency bands between 1.5 GHz and 2.5 GHz in a form factor smaller than multiple single-band power amplifiers conventionally ...

Panasonic preps for WiGig era of content exchange

Jan 31, 2012

(PhysOrg.com) -- Panasonic is working on applications for the new WiGig-technology. WiGig holds out the promise of a time when mobile devices can communicate with each other—in an exchange of videos, ...

Recommended for you

Intel says world's smallest 3G modem has been launched

8 hours ago

Analysts say why not. Intel is going after its own comfortable stake in the mobile market, where connectivity for wearables and "Internet of Things" household items will be in high demand. Intel on Tuesday ...

User comments : 1

Adjust slider to filter visible comments by rank

Display comments: newest first

jshloram
not rated yet Mar 29, 2013
Very impressive!