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Gyrator-based biquad filters and negative impedance converters for microwaves

机译:基于陀螺仪的双二阶滤波器和用于微波的负阻抗转换器

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摘要

We develop and evaluate a new family of active-RC, gyrator-based, voltage-mode, biquadratic filters capable of realizing all standard second-degree filtering functions at microwave frequencies. Each biquad employs two negative second-generation current conveyors (CCII−s) or, equivalently, two infinite-conductance transistors, and we obtain excellent simulated results by implementing each of these perfect elements as a cascaded pair of MMIC GaAs FETs. The transistors in the simulation are modeled using tabulated S parameters of MB3000 (Phillips) devices. In addition, we catalog all known ideal, two-transistor negative impedance converter (NIC) topologies and we show that some are intrinsically better than others with respect to their performance when the active elements are implemented using MMIC GaAs FET CCII−s.© 1998 John Wiley & Sons, Inc. Int J RF and Microwave CAE 8: 86–101, 1998.
机译:我们开发并评估了一个新的有源RC回转器,电压模式双二次滤波器系列,该系列能够在微波频率上实现所有标准的二级滤波功能。每个双二阶均使用两个负的第二代电流传输器(CCII-s)或等效地使用两个无限导晶体管,并且通过将这些理想元件中的每一个用作MMIC GaAs FET的级联对,我们获得了出色的模拟结果。使用MB3000(Phillips)器件的列表化S参数对仿真中的晶体管进行建模。此外,我们对所有已知的理想两晶体管负阻抗转换器(NIC)拓扑进行了分类,并且当使用MMIC GaAs FET CCII-s来实现有源元件时,我们证明了某些拓扑在本质上优于其他拓扑。©1998 John Wiley&Sons,Inc.,《国际射频与微波CAE 8:86-101》,1998年。

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