Wireless communications circuit protection structure

摘要

The present invention is a wireless communications circuit protection structure, in which a microstrip structure is improved and a combined structure of the microstrip structure and the coplanar waveguide (CPW) structure are improved, so that an external ground and an internal system ground may be totally separated with each other to provide electromagnetic susceptibility (EMS), electrostatic discharge (ESD), electricity leakage proofing ability, and a loss within a specific wireless communications frequency range may satisfy the wireless communications ability requirement.

主权项

1. A wireless communications circuit protection structure, comprising:
a base circuit board, comprising a first face and a second face opposed thereto; a wireless communications signal line set, disposed on the first face, and comprising a first wireless communications signal line and a second wireless communications signal line connected thereto through a capacitor in a bridging manner; a first grounding line set, disposed on the first face and at a side of the wireless communications signal line set, having a gap with respect to the wireless communications signal line set, and comprising a first grounding line and a second grounding line connected thereto through a capacitor in a bridging manner; a second grounding line set, disposed on the first face and at the other side of the wireless communications signal line set, having a gap with respect to the wireless communications signal line set, and comprising a third grounding line and a fourth grounding line connected thereto through a capacitor in a bridging manner; and a third grounding line set, disposed on the second face and comprising a fifth grounding line and a sixth grounding line connected thereto through a capacitor in a bridging manner; wherein the first grounding line, the third grounding line and the fifth grounding line are defined as being externally grounded, and the second grounding line, the fourth grounding line and the sixth grounding line are defined as being systematically grounded.