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IQE

3 October 2016

Arralis launches new W-band MMICs

Arralis Ltd of Limerick, Ireland, which designs and manufactures RF, microwave and millimetre-wave devices, modules and antennas up to and beyond 110GHz (the W-band) for aerospace and security market, has added new monolithic integrated circuit (MMIC) devices to its product range. The new power amplifier, image cancellation mixer and variable attenuator come in response to new advance system requirements, says the firm.

Power amplifier

The TU-W1330305 is a 4-stage MMIC power amplifier that covers frequencies of 92–96GHz. It provides up to 20dB of flat, stable gain, and a power output of more than 18dBm from a 4V supply voltage and low current of just 210mA.

Image cancellation MMIC mixer (92-96GHz)

The TU-W1340310 is an I/Q MMIC diode mixer with integrated quadrature coupler for single-sideband up-converter operation. Fabricated using gallium arsenide (GaAs) Shottky diode technology, it is designed for output frequencies of 92–96GHz using either fixed IF and varying LO (86–90GHz) or fixed LO and varying IF (2–6GHz) signals. The circuit employs a double rat race configuration to effectively cancel image signals without filtering and offers what is claimed to be superior signal-to-noise performance.

GaAs pHEMT MMIC attenuator/SPST switch (90–100GHz)

The TU-W1401601 is a GaAs pseudomorphic high-electron-mobility transistors (pHEMTs) diode based single-pole single-throw (SPST) switch and variable attenuator with a single input and output. The attenuation value can be adjusted to any value within the specified attenuation range. The chip is manufactured on a 50μm substrate with 100μm gate length. All bond pads and the die underside are gold plated. The control voltage ranges from +1.5V to -1.5V (the latter giving maximum attenuation).

A packaged version of each device is also available with WR10 waveguide input and output on request.

"We recently launched the world's first W-band up- and down-converters," said chief technology officer Mike Gleaves, speaking at European Microwave Week (EuMW 2016) in London, UK. "We expect the same success with these new devices". On stand 34 Arralis is displaying products including smart beam-steering antenna technology, new communications and radar modules, and a unique GNSS antenna with a very low SWaP specification.

See related items:

Arralis releases first 94GHz transmit and receive core chips

Tags: GaAs MMIC pHEMT PAs

Visit: www.arralis.com

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