Cambridge design house Plextek RFI has announced a reference design for a GaN power amplifier (PA) MMIC for use in X-band active phased array radars. “Active phased arrays require numerous PAs,” said Liam Devlin, CEO of Plextek RFI. “Our design has a die size of 1.5 x 2mm, which means around 2,300 can be fabricated …