Patent ID: 9148108
Filing Date: 2015-09-29
Classification: H03H

Abstract:
1. A band pass filter comprising: a circuit board; an inductor pattern part formed of a plurality of printed circuit board (PCB) patterns comprising a first inductor pattern adjacent to a second inductor pattern, and the first inductor pattern and the second inductor pattern are located on a same plane of the circuit board and having a mutual inductance between the first inductor pattern and the second inductor pattern; a multi-layer ceramic chip (MLCC) part comprising a first MLCC mounted in a lower end side of the first inductor pattern and having a first capacitance and a second MLCC mounted in a lower end side of the second inductor pattern and having a second capacitance; and a port part formed of an another plurality of PCB patterns and connected to the inductor pattern part, the first inductor pattern and the second inductor pattern being adjacent to each other and having effects of another capacitance, the mutual inductance and the another capacitance being connected in parallel to each other to create an effect of a separate filter that is connected between the first inductor pattern and the second inductor pattern.