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SpectreRF

Option SpectreRF spectre circuit simulation of the design System cadence. It adds a number of tests that are especially useful for RF integrated basic functions the Ghost. SpectreRF was first released in 1996 and was notable for three reasons. First, it was, perhaps, the first simulator in Russia, which was primarily designed for large bipolar and CMOS IC RF used shooting methods as its base algorithm, and pioneered the use of Krylov subspace methods. The use of shooting methods gave SpectreRF remarkable robustness and the Krylov methods gave it capacity that was roughly 100 times greater than existing simulators at the time. Previously such simulators are designed to simulate very small and Gaas integrated circuits and hybrids. These simulators were based on the harmonic balance and can reliably simulate the circuit with tens of transistors, whereas SpectreRF can simulate a circuit with thousands of transistors. Added SpectreRF periodic steady state and periodic small signal analysis spectrum. Periodic fixed or PSS analysis directly computed periodic steady-state response of the circuit. Periodic small-signal analyses use the periodic steady-state solution in the form of periodically time-varying operating point and a linearization of the circuit about that operating point and then calculates the response of the circuit to small perturbation sources. Effectively they build a periodically nonstationary linear model of the circuit. This is important, because periodically non-stationary linear models, in contrast to the spatial-invariant linear models used by traditional small signal analysis and noise of the alternating current frequency to set the conversion. For the first time a variety of SpectreRF periodic small signal analysis, including AC periodic PAC, pnoise, periodic noise, periodic transfer function of the PFL, periodic s-parameter PSP and periodic stability pstb. After its introduction, SpectreRF quickly became the dominant simulator for integrated circuits of the Russian Federation, and also played an important role in creating a Ghost as the most popular circuit simulator for integrated circuits. In the end, the SpectreRF dominance faded as the use of Krylov subspace methods apply to other simulators, in particular, on the basis of harmonic balance. SpectreRF now provides a harmonious balance in addition to methods of capture are accelerated with Krylov subspace methods. SpectreRF was developed by Ken Kundert, Jacob white, and Ricardo Telichevesky.