Power amp targets WiMax terminals
1 min read
Mitsubishi Electric has announced it is to introduce a new InGaP HBT power amplifier specifically targeted towards WiMax subscriber terminal applications such as pc cards and customer premises equipment.
The MGFS38E2527 module offers an output power of 28.5dBm, which is 1.5dB higher than the output power of its predecessor. The module has been designed to provide a linear power gain of 35dB and allows off/on step attenuation of 0/25dB.
According to Mitsubishi Electric, these values of output power and gain are achieved with low distortion of less than 2.5% error vector magnitude and a power detector output voltage of 1.5V, both at 28.5dBm. In accordance with the target applications (WiMAX) the new module operates in the frequency range 2.5 to 2.7GHz.
Measuring 4 by 4mm, Mitsubishi Electric says the MGFS38E2527 is 20% smaller than conventional amplifiers even though it already includes two functional circuits: a power detector for the precise monitoring of output power and a one bit step attenuator for output power control. The new device is matched to 50O at the input and output.
By the end of March 2010 Mitsubishi Electric plans to introduce amplifiers for the 2.3 and 3.5GHz bands, which will also offer output powers of 28.5dBm.
