Patent ID: 9148112
Filing Date: 2015-09-29
Classification: H03H

Abstract:
1. A matching circuit system, comprising: a first inductor having a first terminal, and a second terminal configured to receive an input signal; a first capacitor having a first terminal coupled to the first terminal of the first inductor, and a second terminal; a second inductor having a first terminal coupled to the second terminal of the first capacitor, and a second terminal coupled to ground; a second capacitor having a first terminal coupled to the first terminal of the first capacitor, and a second terminal; a third capacitor having a first terminal coupled to the second terminal of the second capacitor; and a third inductor having a first terminal coupled to the first terminal of the second capacitor, and a second terminal coupled to the second terminal of the second capacitor; wherein the first capacitor and the second inductor are used for generating a first open circuit resonance corresponding to a first frequency to partially suppress a second harmonic of the input signal corresponding to a second frequency and a third harmonic of the input signal corresponding to a third frequency, the second capacitor and the third inductor are used for generating a second open circuit resonance corresponding to the second frequency or the third frequency to suppress at least one of the second harmonic and the third harmonic of the input signal, and the first frequency is between the second frequency and the third frequency.