High voltage discharge protection device and radio frequency transmission apparatus using the same

摘要

A high voltage discharge protective device for an RF device having a signal port, includes a blocking capacitor arranged at the signal port of the RF device, a circuit board for mounting the blocking capacitor, and a metal conductor grounded and partially bare. The blocking capacitor includes a main body and two leads connected to the main body and secured to the circuit board. The bottom portion of the main body is bare to form an exposed portion. The exposed portion is spaced apart from the circuit board to form an interval. The metal conductor is disposed within the interval and corresponds to the exposed portion of the blocking capacitor. When the passing voltage within the blocking capacitor reaches a predetermined value, the exposed portion of the blocking capacitor sparkly discharges to the metal conductor. An RF device is also provided.

主权项

1. A high voltage discharge protective device, for an RF device having a signal port, comprising: a blocking capacitor arranged at the signal port of the RF device and a circuit board for mounting the blocking capacitor, the blocking capacitor comprising a main body and two leads, opposite ends of the leads being respectively secured to the main body and the circuit board, the bottom portion of the main body being bare to form an exposed portion, the exposed portion being spaced apart from the circuit board to form an interval; wherein the device further comprises a metal conductor which is grounded and partially bare; wherein the metal conductor is disposed within the interval and corresponds to the exposed portion of the blocking capacitor; when the passing voltage within the blocking capacitor reaches a predetermined value, the blocking capacitor itself discharges and the exposed portion of the blocking capacitor sparkly discharges to the metal conductor.