Decade Bandwidth Agile GaN Power Amplifier Exceeding 50% Efficiency
When meeting design requirements for maximum energy efficiency in transmitters, it is known that circuit linearity must not only be compromised, it must actually be suppressed. In these maximally nonlinear operation modes the usual measures of circuit gain cannot remain in their common indiscriminate use, but rather must be evaluated separately for their unique information. By intentionally performing maximal-efficiency circuit design, additional requirements are identified that additionally provide wideband operation. Such amplifiers are also inherently compatible with wideband phased-array systems because of their suppressed linearity. All of these traits directly benefit desired reductions in size, weight, and power (SWaP) for field, airborne, and spaceborne communications and radar systems.