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

August 2, 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: Clever cloaks: Unique metamaterials preserve phase while guiding surface waves around ultrasharp corners and bumps

Related Stories

'Comb on a chip' powers new atomic clock design

July 22, 2014

Researchers from the National Institute of Standards and Technology (NIST) and California Institute of Technology (Caltech) have demonstrated a new design for an atomic clock that is based on a chip-scale frequency comb, ...

Future electronics may depend on lasers, not quartz

July 17, 2014

(Phys.org) —Nearly all electronics require devices called oscillators that create precise frequencies—frequencies used to keep time in wristwatches or to transmit reliable signals to radios. For nearly 100 years, these ...

Portable frequency comb rolls out of the lab

March 21, 2014

A PML team is hitting the road with a fine-tooth comb. Scientists in the Quantum Electronics and Photonics Division have devised a portable optical frequency comb that is capable of laboratory-grade measurements but can be ...

Tiny sensors put the squeeze on light

October 24, 2013

Microelectromechanical systems, known as MEMS, are ubiquitous in modern military systems such as gyroscopes for navigation, tiny microphones for lightweight radios, and medical biosensors for assessing the wounded. Such applications ...

Recommended for you

Most EU nations seek to bar GM crops

October 4, 2015

Nineteen of the 28 EU member states have applied to keep genetically modified crops out of all or part of their territory, the bloc's executive arm said Sunday, the deadline for opting out of new European legislation on GM ...

The dark side of Nobel prizewinning research

October 4, 2015

Think of the Nobel prizes and you think of groundbreaking research bettering mankind, but the awards have also honoured some quite unhumanitarian inventions such as chemical weapons, DDT and lobotomies.

Internet giants race to faster mobile news apps

October 4, 2015

US tech giants are turning to the news in their competition for mobile users, developing new, faster ways to deliver content, but the benefits for struggling media outlets remain unclear.

Fusion reactors 'economically viable' say experts

October 2, 2015

Fusion reactors could become an economically viable means of generating electricity within a few decades, and policy makers should start planning to build them as a replacement for conventional nuclear power stations, according ...


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.