Patent ID: 8060025
Filing Date: 2011-11-15
Classification: H03H,H04B

Abstract:
1. A filter arrangement having an input and an output, comprising: a first impedance comprising a first connection connected to the input of the filter arrangement, wherein the first impedance has a first resonant frequency, a second impedance comprising a first connection connected to the input of the filter arrangement, wherein the second impedance has a second resonant frequency that is higher than the first resonant frequency, wherein the first impedance and the second impedance comprise a circuit having inductance and capacitance, a subtractor having two inputs and an output, wherein a first input of the subtractor is connected to a second connection of the first impedance, a second input of the subtractor is connected to a second connection of the second impedance, and the output of the subtractor is connected to the output of the filter arrangement.