Technology Update from PRFI No images? Click here Watch our recent discussion video, in which Liam Devlin explains the challenges of packaging devices at mmWave frequencies, and the options and techniques available to achieve the best results. In this video Rob Smith describes how to use the FEM simulator in Keysight ADS to simulate microwave package transitions and wire bonds. The key to success is to co-design the IC and the package, in order to optimise the performance of the packaged device rather than the IC on its own. PRFI's labs and facilities in Great Chesterford, near Cambridge in the UK, were featured in the October issue of Microwave Journal. Download and read the article here. Doherty PAs are widely used below 6 GHz to improve power-added efficiency (PAE) for communications applications. Although the benefits of the Doherty architecture are compelling, the challenges of designing Doherty PAs increase as the frequency of operation moves toward mmWave. This article in the September issue of Microwave Journal describes the design of a Doherty PA MMIC for the 5G frequency band at 28 GHz, fabricated on the commercial 0.15 µm G28v5 GaN on SiC foundry process from Wolfspeed and assembled into a cost-effective, compact 4 mm x 4 mm QFN package. We would like to wish all our friends and colleagues a happy holiday season, and a prosperous and healthy 2021. PRFI has an extensive library of technical tutorial videos and technology trends discussions on its YouTube channel, and a series of White Papers on its website. Contact us at enquiries@prfi.com. Please follow PRFI on Twitter (@PRFI_UK) and LinkedIn, and 'Like' our Facebook page. Keep in touchIf you have received this technology update via a colleague, please sign up to receive your own copy in future. |