Cree Releases Verilog-A RF Device Models to Accelerate GaN Adoption in 4G/LTE Telecom Infrastructure
New Models Drive Faster Time to Market and Provide Rapid Simulation of Complex Waveforms such as W-CDMA and OFDMA
“The release of this new suite of device models enables RF design engineers to predict non-linear performance using harmonic balance, conduct robust transient analysis as well as use ‘real-world’ arbitrary modulation signals with envelope simulation for Cree’s GaN HEMT devices,” said Jim Milligan, director RF and microwave, Cree. “The Verilog-A models, together with envelope simulators, allow designers to directly investigate higher efficiency circuit approaches, such as Doherty amplifiers, to improve adjacent channel power ratios, spectral re-growth and error vector magnitude, while assessing if amplifier performance meets spectral mask requirements for LTE deployments. As these models also take advantage of multi-core processors, simulation times can be greatly reduced.”
“Transient analysis allows insight into switched-mode power amplifier configurations that may also be driven directly from digital signals,” said Ray Pengelly, RF business development manager, Cree. “Combined with such approaches as Chireix out-phasing, unprecedented efficiencies of greater than 70 percent have been demonstrated.”
The models are available free to Cree’s RF customers. Visit Cree at the 2012 International Microwave Symposium, Booth #2125, to see the latest Cree innovations. To request access to Cree's RF model portal, please visit rf/tools-and-support/rf-portal-access-request-form. For additional information please visit www.cree.com/rf.
Verilog-A is an industry-standard language used to describe transistor behavior for simulation purposes. For additional information, please visit http://www.verilog.org/verilog-ams/htmlpages/public-docs/lrm/VerilogA/verilog-a-lrm-1-0.pdf
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This press release contains forward-looking statements involving risks and uncertainties, both known and unknown, that may cause actual results to differ materially from those indicated. Actual results may differ materially due to a number of factors, including customer acceptance of products; the rapid development of new technology and competing products that may impair demand or render Cree’s products obsolete; and other factors discussed in Cree’s filings with the Securities and Exchange Commission, including its report on Form 10-K for the year ended June 26, 2011, and subsequent filings.