Patent ID: 8400233
Filing Date: 2013-03-19
Classification: H03H,H04B

Abstract:
1. A circuit arrangement for impedance matching, the circuit arrangement comprising: an input; an output; a first circuit that includes first, second, third and fourth components that each have an effective impedance, wherein the first and second components are coupled in series in a first main path between the input and the output and form a T configuration with the third component, and the fourth component is coupled in parallel with the first main path, wherein the first circuit is suitable for impedance matching in a first frequency band and is a passage element for a second frequency band; and at least a second circuit coupled to the first circuit and including fifth, sixth, seventh and eighth components that each have an effective impedance, wherein the fifth and sixth components are coupled in series in a second main path between the input and the output and form a T configuration with the seventh component, and the eighth component coupled is coupled in parallel with the second main path, wherein the second circuit is suitable for impedance matching in the second frequency band and is a passage element for the first frequency band.