CURRENT BREAKER AND WIRELESS COMMUNICATION DEVICE HAVING THE SAME

摘要

A current breaker comprises a multi-layer printed circuit board (PCB), a ground plane, a metal component and a conductive via hole. The ground plane is disposed in a first metal layer of the multi-layer PCB and comprises a slot forming inductive impedance. The slot comprises an extended portion. The metal component is disposed in a second metal layer of the multi-layer PCB. Capacitive impedance is formed between the metal component and the ground plane. The projection of the metal component on the ground plane and the extended portion of the slot partially overlap. The conductive via hole penetrates the multi-layer PCB to connect metal component with the ground plane. The first and the second metal layers are any two metal layers of the multi-layer PCB. The inductive impedance formed by the slot and the capacitive impedance formed between the metal component and the ground plane create a parallel LC equivalent circuit.

主权项

1. A current breaker comprises:
a multilayer printed circuit board; a ground plane being disposed in a first metal layer of said multilayer printed circuit board, wherein said ground plane comprises a slot and said slot comprises an extended portion; a metal component being disposed in a second metal layer of said multilayer printed circuit board, wherein a projection of said metal component on said ground plane and said extended portion of said slot partially overlap; and a conductive via hole penetrating the multilayer printed circuit board to connect the metal component with the ground plane; wherein said first metal layer and said second metal layer are any two metal layers of the multilayer printed circuit board, and an inductive impedance formed by said slot and a capacitive impedance formed between said metal component and said ground plane create a parallel LC equivalent circuit.