Optical demodulator shuns local oscillator without loosing narrowband finesse

Side-stepping traditional laser local oscillator down-conversion techniques, Australian engineers are using acoustic interactions to retrieve frequency and phase information from Gbit/s modulated optical signals. “Our technique uses the interaction of photons and acoustic waves to enable an increase in signal capacity and therefore speed,” said Dr Elias Giacoumidis of the University of Sidney. “This allows ...

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Polyaniline + zinc ferrite = microwave absorption

A thin coating of a composite made from zinc ferrite and polyaniline absorbs microwave radiation in Ku band, according to researchers at  Anhui University of Science and Technology in China. The composites were synthesised by a two-step hydrothermal and in-situ polymerisation method, with Zn ferrite (2-30nm particles) used to adjust the impedance matching and improve ...

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Surrey delves into triboelectric energy harvesting

University of Surrey scientists have unveiled maths that predicts the behaviour of triboelectric nanogenerators (TENGs) – devices that harvest electricity from contact between two or more materials. “This study redefines the way we understand energy harvesting,” said researcher Ishara Dharmasena. “The tools developed here will help researchers all over the world to exploit the true ...

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EEMBC creates IoT Bluetooth power consumption benchmark for MCUs

Benchmarking consortium EEMBC has created a tool to measure the combined energy consumption of an IoT edge node’s sensor interface, processor, and Bluetooth LE radio interface. Part of the IoTMark benchmarking suite, it is called IoTMark-BLE benchmark. IoTMark-BLE models a node consisting of an I²C sensor and a BLE – radio through sleep, advertise, and ...

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Mouser signs Virtium

Mouser has signed SSD and memory module specialist Virtiymnto a global distribution deal. The Virtiymnportfolio includes StorFlyband TuffDrive SSDs, memory modules and other industrial embedded solutions. The  StorFly and TuffDrive SSDs are made for extreme conditions in industrial embedded applications, offering models with an available industrial temperature range of minus 40 to 85 degrees Celsius. The ...

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Electronics production healthy, says SI

Production of electronic equipment is healthy based on July and August data, says Bill Jewell’s Semiconductor Intelligence. China, the largest electronics producer, showed three-month-average change versus a year ago (3/12) of 13.8% in August. Growth for China has been in the 12% to 15% range since January 2017, picking up from the 8% to 11% ...

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