Among MACOM's RF energy products is the MAGe-102425-300, which is a 300-W gallium-nitride (GaN) power transistor. The MAGe-102425-300 operates over a frequency range of 2.4 to 2.5 GHz and achieves 70% drain efficiency.
At IMS 2017, MACOM displayed a microwave oven based on solid-state RF technology. “Here you see our compact RF energy solution integrated into a microwave oven, removing any need for cooling cables,” said Mark Murphy, MACOM's senior director of RF, at the event.
Murphy continued, “Commercial OEMs are eager to seize the massive market opportunity for higher-performing RF energy-based systems enabled by GaN-on-silicon (GaN-on-Si). But they don’t want to invest the resources to architect the RF power elements themselves. We are lifting this design burden from the OEMs, and will help them get to market faster with their RF energy-based systems by providing an affordable, easy-to-use platform that streamlines system design and lowers development costs.”
NXP Semiconductors started diving into solid-state RF energy after acquiring Freescale in 2015. The company recently introduced the MRF13750H transistor, which can deliver as much as 750 W CW.
This block diagram illustrates how solid-state RF energy can enable a cooking system. Solid-state RF technology is essentially being used in place of magnetron technology.
Ampleon, the former RF power business of NXP Semiconductors, has also turned the solid-state technology into a major priority. It offers a number of power transistors that can drive RF energy applications.
MACOM recently introduced its RF energy toolkit. This new toolkit consists of GaN RF power transistors, a power supply, forward and reverse power detectors, and a controller along with software.
MACOM's RF energy toolkit was demonstrated at IMS 2017. “The toolkit allows designers to develop what are known as ‘applicators,’ which determine how RF energy is delivered into different applications,” the comapny said in a recent blog post.