Consortium claims SiGe frequency record
February 25, 2011 // R. Colin Johnson
The European Union's DotFive project has produced a silicon germanium chip set that it claims has the world's highest frequency of operation in the history silicon germanium (SiGe) history. The 820 GHz (0.82 terahertz) transmitter and receiver chip pair enable x-ray-like vision—to see inside containers—but at harmless millimeter wavelengths.
Today's terahertz imaging, radar and communications applications require expensive exotic devices, but the EU's DotFive project aims to lower the cost of terahertz devices by casting them in high-frequency SiGe. The three-year-old project is focused on producing millimeter wavelength silicon-germanium hetero-junction bipolar transistors (BiCMOS), which will be produced by commercially by STMicroelectronics NV and Infineon Technologies AG.
At the International Solid-State Circuits Conference, IHP GmbH and the University of Wuppertal presented the latest results of the DotFive project. The team described its two chip set—transmitter and receiver—which includes all the frequency multipliers, harmonic mixers, power amplifiers, on-chip antennas, and other circuits needed to create 820 GHz frequencies from a 18GHz reference. The researchers demonstrated the chips in a THz imaging application that could see inside a USB memory stick.
Visual images (top) and x-ray-like terahertz images (below) of objects screened at 0.82 THz with an integrated SiGe solution. Source: DotFive.
Chip micrographs of a fully-integrated SiGe chip-set for THz imaging applications, to be presented at the 2011 ISSCC. Source: DotFive.
The engineering desk-to-bench ratio
November 21, 2014
Dennis Feucht discusses the right and wrong, senior and junior ways to organize the theoretical and practical work of an ...
Rohm's European Design Center in growth phase
Combo inertial sensor market on 19% CAGR, says Yole.
US, China pushing industrial chip market growth, says IHS
LA Auto Show: Hydrogen fuel cell drive is back
Opening up the IoT data flood gates
November 21, 2014
Only a few days after their LoRa long range communication demo at electronica, IBM and Semtech are making the LoRa MAC protocol ...
Polarizing filter reduces energy drain from smartphone displays
From warm to cool white: colour-temperature tunable LEDs
System provides high-volume solution for flexible OLED displays
- Halogen-free options and increased performance for terminal blocks
- Wireless Power User Guide
- Secure is the New Smart
- 5 Best Practices for Designing Flexible Test Stations
InterviewFreescale CEO: 'IoT isn't just buzz'
Coming after the solid third quarter results that produced higher operating margins and improving cash flow, Freescale Semiconductor's CEO Gregg Lowe had every reason to be chipper and lively when EE Times ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Cherry is giving away five of its Energy Harvesting Evaluation kits, worth over 266 Euros each, for EETimes Europe's readers to win. Cherry's energy harvesting technology benefit mostly applications where a complex wire assembly and/or batteries would be inappropriate.
The required RF-energy is created by the mechanical actuation of the switch and the data is transmitted...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.
Most popular news
- Could magnesium battery innovation end lithium's dominance?
- From warm to cool white: colour-temperature tunable LEDs
- Li-Fi communication module wirelessly transfers data at 1-Gbps
- Supercapacitor innovation promises panel-powered cars in five years
- Rebranding the revolution: the future of IoT is embedded