heading-electronics-letters

Vol 48, No 23, 08 November 2012

  • Dr Zheng Wang from Tianjin University in China

    Interview with Zheng Wang

    Dr Zheng Wang from Tianjin University in China talks about the research behind his Letter ‘Automatically fast determining of the feature number for ranking based feature selection'.

  • The 2 inch AlGaN/GaN over sapphire substrate wafer with C3 devices on the RF probe station

    Shifting boundaries

    Easy to fabricate integratable RF power limiters that can operate up to 100W.

  • Prof. H. Zimmermann (left), S. Schidl (centre) and A. Polzer (right)

    Multijunction detectors

    Researchers at the Vienna University of Technology in Austria tell us more about their work to show that multijunction photodetectors can detect the wavelength of LEDs over a wide spectral range.  

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Special issue

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Semiconductors in Personalised Medicine

A special supplement to Electronics Letters that reflects on the growth of semiconductors as the enabling technology to help with some of the global healthcare challenges that we face today.

Also in this issue

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Flat light

Researchers in Japan present an amplified spontaneous emission (ASE) light source with a flat and broadband ASE spectrum in the 1800 nm wavelength region. Flat and broadband ASE spectrum was achieved by combining different Tm3+-Tb3+-doped fibres with different rare earth concentrations. Operating in the 1800 nm region the light source is attractive for applications like near-infrared spectroscopy.

Longshot

Carefully designing their system to combat fibre nonlinearity a group of researchers in China demonstrate terabit superchannel-WDM transmission over 2240 km of fibre. Their 4×1.93 Tb/s 8-PSK DFT-S OFDM system has a spectral efficiency of 5.6 bit/s/Hz within each superchannel.

Memristor mimics

A class of devices that can be used as electronic synapses in neuromorphic circuits is presented in work from Cyprus. The devices are fully CMOS compliant and can be used without the extra circuitry and costs incurred in forming solid electrolyte memristors. Their low voltage/current operation lends itself to applications in low power biomimetic architecture circuits.

Balancing acts

A dual-band transcutaneous bio-implant system architecture with efficient power interference cancellation is presented by researchers in the US. Implemented in a compact integrated circuit the work addresses feedback cancellation of the power-to-data coupling, which is a major issue for dual-band implanted electronics, and enables separate optimisations for the power and the data links, simultaneously.

Round the bend

The first implementation of a hybrid Substrate Integrated Waveguide (SIW) interconnect using a flexible substrate is reported in work from Canada. The interconnect, intended for chip-to-chip ultra-highspeed multi-channel data communication, was subjected to various bending angles and results demonstrate that even in the extreme case of 180oat 1cm the effect of bending on the transmission of the hybrid channels is almost negligible.

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