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Use Golden Gate sim EVM for HPF

Question asked by yangcreate on Jun 24, 2009
When I simulate the High pass filter with ET method of Goldengate, I find that the signal passes HPF turn to be very weak! In fact, the HPF has no attenuation,but ET simulation shows that the HPF attenuate the signal more than 100dB. It is very strange! Who can help me? Thanks!