laixl wrote on Dec 1st, 2008, 11:43am:Spectre will support the autonomous QPSS ( and corresponding small signal analyses, like PAC, PXF, Pnoise, etc ) in MMSIM7.1.
After long long time since SpectreRF was first released, at last Cadence SpectreRF will be able to have all basic RF analyses which other RF simulators already have.
But issues of Cadence HB-QPSS performance still remains.
Cadence HB-PSS which have only one fundamental is enough comparable to Agilent HB analysis of ADSsim or GoldenGate regarding speed and memory consumption.
Cadence HB-QPSS which have two fundamentals is not so bad compared to Agilent HB analysis of ADSsim or GoldenGate.
But simulation speed is little slow compared to Agilent HB analysis.
Cadence HB-QPSS which have more than three fundamentals is very inferior to Agilent HB analysis of ADSsim or GoldenGate.
Simulation speed is very slow and memory consumption is huge compared to Agilent HB analysis.
I've evaluated HB analysis in SpectreRF using 6.0USR1, 6.0USR2, 6.1, 6.2 versions.
When I come to be able to use MMSIM7.1, I will do performance tests of Cadence Spectre HB-QPSS again including autonomous QPSS.