Electronics Letters: volume 46 issue 9

Featured article

An attractive couple

A high frequency CMOS-MEMS filter, suitable for wireless communications, has been created by the coupling of two mechanical resonators.

Also in this issue

• Interview with Thomas Kleine-Ostmann

  The feasibility of ultra fast digital communication links at THz frequencies has been demonstrated in the Letter Wireless digital data transmission at 300 GHz. One of the co-authors, Dr Thomas Kleine-Ostmann from Physikalisch-Technische Bundesanstalt in Germany, tells us more.

  
  

• Tuning into terahertz

  Interdigitated photoconductive antennas have been engineered to reach even more of the THz spectrum for pulsed spectroscopy and imaging.

  
  

• Fingertip control

  Researchers in China and the US have proposed a wireless magnetic flux sensor-based hand tracking method consisting of a wrist band plus one small magnet per finger for human-computer interaction methods.

  
  

• Spot the difference

  A method for unsupervised change detection in satellite imagery has been presented by researchers in Singapore. The method, based on a Gaussian mixture model and Bayesian inferencing, allows the comparison of images of the same scene taken at different times, irrespective of the imaging used.

  
  

• Dual fibre sensor

  Recently FBG sensors have been inscribed in Poly(methyl methacrylate) (PMMA) polymer optical fibre which has the added property of affinity for water, allowing their use in humidity sensing although with cross-sensitivity to temperature.

  
  

• Temporal resonance

  Researchers from SUPELEC in France have demonstrated a time-reversal electromagnetic chamber to control the polarisation, spatial distribution and the time dependence of coherent amplified source fields.

  
  

• Radiating improvement

  Owing to their excellent high-frequency and low-noise performance, GaAs-based pseudomorphic HEMTs are extensively used for communication systems, often for military, nuclear industry, and space applications. As such, it is imperative that they function properly in extreme radiation environments.