Sept 12 2012–Tokyo,Japan (Techreleased) – Mitsubishi Electric develops Ku-band 50W GaN HEMT for satellite earth stations.Mitsubishi Electric Corporation (TOKYO: 6503) announced today it has developed a gallium nitride (GaN) high-electron mobility transistor (HEMT) Ku-band (12-18GHz) amplifier for satellite earth stations. The MGFK47G3745, featuring industry-leading output power of 50W, linear gain of 9dB and power added efficiency of 30%, is expected to reduce the number of high frequency amplifiers by half and contribute to greater power saving and downsizing for power transmitter equipment. Mitsubishi Electric will begin shipping samples on October 1.
Satellite-based communication, especially in the Ku-band, enables communication to be established under adverse conditions, such as during natural disasters, and in areas where communication facilities are hard to build. Mobile earth-based stations require in-vehicle portability and must be easy to install, so power-saving measures and downsized power transmitters are highly useful in helping to minimize the size of earth stations. Going forward, Mitsubishi Electric expects to expand its lineup of Ku-band satellite earth stations.
|High output power, efficiency and gain
Fig. Simplified schematic of amplifier
|VDS (Drain to Source Voltage)||24 V|
|IDQ (Quiescent Drain Current )||1 A|
|Frequency||13.75 – 14.5 GHz (Ku band)|
|Output Power||Pout (Typical Output Power at Pin=42dBm)||47 dBm(50 W)|
|Linear Gain||Glp (Typical Linear Gain at Pin=27dBm)||9 dB|
|Power Added Efficiency||PAE (Typical Power Added Efficiency at Pin=42dBm)||30 %|