A 500-MHz 16*16 complex multiplier using self-aligned gate GaAs heterostructure FET technology. - Akintunde Ibitayo Akinwande; I. Ross MacTaggart; B. K. Betz; D. E. Grider; T. H. Lange; J. C. Nohava; David E. Tetzlaff; David K. Arch (IEEE J. Solid State Circuits, 1989)