RF, Microwave & Optoelectronics News

Antenova launches compact antenna

Antenova, the Hatfield-based antenna specialist, has brought out a surface mount, dual-band antenna for the Wi-Fi 802.11n and AC 2.4GHz-2.5GHz and 4.9GHz-5.9 GHz bands, called Mutica. The company describes it as a surface mounted antenna for all dual-band Wi…

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Optical incremental encoder controls robots and drones

Avago Technologies has designed a range of 3-channel optical incremental encoder modules for controlling DC servo motors, but also robotics and drones. The AEDT-981x module incorporates an interpolator which can support encoding resolutions from 1,000 to 5,000 counts per revolution (CPR) using a codewheel of 11mm…

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Smart meter chip for multi-standard power line comms

Maxim has created a single chip to accommodate the G3-PLC, Prime, and P1901-2 power line comms standards in the CENELEC A, ARIB, and FCC frequency bands. “Powerline communication [PLC] standards and frequency bands vary by region and country, and PLC modems could not support them all,” said the…

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Rockchip delivers Wi-Fi for IoT at Bluetooth power levels

Rockchip, the China fabless communications IC specialist, has produced an 802.11b Wi-Fi chip delivering 11Mbps with the power level of Bluetooth 4.0 LE. The chip, RKi6000, will be available in Q3. It has achieved this, says Rockchip, by : 1. Receiving and transmitting data continuously, enabling devices to…

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Optical port switch designed to reduce crosstalk

Charcroft Electronics is sampling a pair of optical port switches designed for smart metering applications. As an alternative to the conventional pairing of an LED and a phototransistor, the pair of optical port switches from TT Electronics Optek can reduce the need for external conditioning circuitry to eliminate crosstalk between…

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Photo-coupler constant with current and temperature

Toshiba has introduced a photo-coupler with a constant current transfer ratio (CTR) from 200uA to 8mA (50-600%, 5V) and 25 to 100°C. Called TLP383, it is intended for use in programmable logic controllers (PLCs), AC power adapter and I/O interface boards. Turn-off is in 30…

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Vishay powdered iron SMD inductors saturate up to 5A

Vishay has introduced a series of 0806 and 1008 low-profile, high-current power inductors with powdered iron cores for saturation current up to 5.8A.  ‘IHHP’ devices are offered in 2.0 x 1.6mm (0806) or 2.5 x 2.0mm (1008), each 1.0mm or 1.2mm…

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Toshiba claims to have 'smallest' optocoupler

Toshiba Electronics has introduced a number of photo-relays in small VSON4 packages. The TLP34xx devices support trigger LED currents of 3mA (max) and isolation voltage of 300Vrms(min). The VSON4 package measures 1.5mm x 2.5mm x 1.3mm thick. The TLP3442 device also has a low off…

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