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Wolfspeed On The Radar At IMS 2016

Company to highlight latest L-Band and C-Band HEMTs and wideband GaN Doherty PA technology

Wolfspeed, a Cree Company and a supplier of GaN-on-SiC HEMTs and MMICs, will highlight its RF and microwave devices and foundry services at this year's IEEE International Microwave Symposium (IMS 2016), scheduled for May 22 - 27, 2016 in San Francisco.

Live product demonstrations of the latest Wolfspeed RF technology include the CGHV14800, a new high power GaN HEMT device designed for L-Band radar applications. Providing a minimum of 800W of pulsed power at 1.2 to 1.4GHz with better than 65 percent drain efficiency, the CGHV14800 is said to be the highest output power 50V GaN HEMT demonstrated to date.

Another is Wolfspeed's new CGHV59070 GaN HEMT for C-Band radar systems. The CGHV59070 delivers 50 percent drain efficiency at high gain, making it an ideal driver for the 350W, 5.2 to 5.9GHz CGHV59350 device released last year.

Wolfspeed will also showcase a wideband LTE Doherty power amplifier, developed using the company's high performance 0.4µm 50V GaN RF foundry process. The amplifier operates from 1.8 to 2.2GHz instantaneously, with 55 percent power-added efficiency at 7.5dB backed off to improve linearity.

The company is also supporting the IMS 2016 STEM program, and two of the onsite student design competitions - one for High Efficiency Power Amplifier Design, and another that focuses on Power Amplifier Linearisation Through Digital Pre-Distortion (DPD) - by both speaking with participating students and donating GaN HEMTs, large signal models, and Doherty amplifiers built with Wolfspeed GaN HEMTs.

Wolfspeed says that compared to conventional silicon and GaAs devices, its GaN-on-SiC devices deliver higher breakdown voltage, higher temperature operation, higher efficiency, higher thermal conductivity, higher power density, and wider bandwidths.

"We look forward to participating at IMS each year. It's a great opportunity to engage with our customers, who continually push us to develop the next generation of high performance RF and microwave products," said Jim Milligan, RF and microwave director, Wolfspeed. "We're also proud to support the innovative STEM program established by IMS 2016 organisers, as it will provide students with an excellent introduction to wireless technology."



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