Fractional-order lead/lag compensator realizations, using Operational Transconductance Amplifiers as active blocks, are presented in this paper. Two different types of fractional-order transfer functions, derived from the integer-order lead/lag compensator transfer function, are used to describe the behavior of the fractional-order compensator. Both types are approximated using the Padé approximation tool, and are expressed by the same form of rational integer-order transfer function. This means that both types can be implemented using the same active core, which is an important advantage from the design versatility point of view. From the design flexibility point of view, the attractive feature is that both types offer electronic adjustment of their characteristics through the appropriate tuning of the DC bias currents. Simulation results, derived using the Cadence IC design suite and the design kit of the Austria Mikro Systeme $0.35\mathrm{\mu }\text{m}$ CMOS process, are used for evaluating the performance of the presented designs.

本文介绍了使用运算跨导放大器作为有源模块的分数阶超前/滞后补偿器的实现。从整数阶超前/滞后补偿器传递函数得出的两种不同类型的分数阶传递函数用于描述分数阶补偿器的行为。两种类型均使用Padé逼近工具进行逼近，并以相同形式的有理整数阶传递函数表示。这意味着两种类型都可以使用相同的有源内核来实现，从设计通用性的角度来看，这是一个重要的优势。从设计灵活性的角度来看，有吸引力的功能是两种类型都可以通过适当调整直流偏置电流来对其特性进行电子调整。仿真结果，$0.35\mathrm{\mu }\text{米}$ CMOS工艺用于评估所提出设计的性能。