Patent ID: 7737802
Filing Date: 2010-06-15
Classification: H04L

Abstract:
1. A passive equalizer with negative impedance to increase a gain, comprising: a first RC loop having a first resistor, a second resistor connected in series to the first resistor at a first node to thereby form a first resistor series, and a first capacitor connected in parallel to the first resistor series; a second RC loop having a third resistor, a fourth resistor connected in series to the third resistor at a second node to thereby form a second resistor series, and a second capacitor connected in parallel to the second resistor series; a cascade RL circuit connected between the first node and the second node and having a fifth resistor, a sixth resistor and an inductor connected between the fifth resistor and the sixth resistor; and a cross-coupled inverter unit connected in parallel to the cascade RL circuit and connected between the first node and the second node.