TUNAMOS project uses magnetic nano-oscillator to solve limitations of integrated oscillators in wireless devices

Aug 02, 2005

The project "TUnable NAno-Magnetic OScillators for integrated transceiver applications" aims at demonstrating the breakthrough concept spin torque in a nano-scale microwave integrated oscillator for application in wireless integrated devices. The project is part of the FP6 program of the EU and is being coordinated by IMEC.

The recent discovery of the spin torque oscillator, a nano-patterned ferromagnetic device in which high-quality tunable microwave oscillations can be generated by a small DC current, opens perspectives to solve the paradigms in microwave engineering design. None of the RF oscillators existing today combines a high-quality resonance with a high integration level, necessary for low-power and low-cost applications, and wideband tunability.

The frequency of the oscillation generated by the spin torque oscillator can be tuned by a magnetic field as well as by the current in a range of 5- 40GHz. Quality factors as high as 18000 have been observed, making the magnetic flute a natural current-controlled RF source. This electronic device is extremely suitable for integration because of the nano-scale dimensions (diameter of the contact < 100 nm) and the simple structure of the metallic magnetic multi-layer. The fabrication is compatible with the back-end flow of standard Si technology and can fully profit from the cost/scalability economics reflected by Moore’s law.

The TUNAMOS project aims to study the oscillating modes in the range of 5-10 GHz as well as the influence of parameters (e.g. temperature, geometry,...) on the microwave frequency, signal power and phase noise. Monolithic integration with a high-gain RF CMOS amplifier circuit will boost the power to levels suitable for wireless applications.

This oscillator has the potential of bringing closer the vision of integrating flexible and agile low-cost radio capability into every silicon product of the intelligent environment of tomorrow.

Other partners in the TUNAMOS-project are STMicroelectronics, UPS Université Paris Sud and UFSD University of Sheffield. The project was launched on 1st of June 2005 for a duration of 3 years.

Source: IMEC

Explore further: Google searches hold key to future market crashes

add to favorites email to friend print save as pdf

Related Stories

Google searches hold key to future market crashes

8 hours ago

A team of researchers from Warwick Business School and Boston University have developed a method to automatically identify topics that people search for on Google before subsequent stock market falls.

Recommended for you

London mayor expected to say city will rock 5G by 2020

1 hour ago

London mayor Boris Johnson this week will pledge to bring 5G to London in the next six years, reported The Telegraph on Monday. The pledge is part of a more extensive plan for London's infrastructure between ...

T-Mobile deal helps Rhapsody hit 2M paying subs

3 hours ago

(AP)—Rhapsody International Inc. said Tuesday its partnership with T-Mobile US Inc. has helped boost its number of paying subscribers to more than 2 million, up from 1.7 million in April.

Airbnb woos business travelers

3 hours ago

Airbnb on Monday set out to woo business travelers to its service that lets people turn unused rooms in homes into de facto hotel space.

Google searches hold key to future market crashes

15 hours ago

A team of researchers from Warwick Business School and Boston University have developed a method to automatically identify topics that people search for on Google before subsequent stock market falls.

Lenovo's smart glasses prototype has battery at neck

17 hours ago

China's PC giant Lenovo last week offered a peek at its Google Glass-competing smart glass prototype, further details of which are to be announced in October. Lenovo's glasses prototype is not an extreme ...

User comments : 0