Acquisition circuit and power monitoring circuit based on standing wave detection

The utility model provides an acquisition circuit and a power monitoring circuit based on standing wave detection. The acquisition circuit based on standing wave detection comprises a power divider, a first detector and a second detector; wherein the power divider is connected with an incident power transmission circuit and an antenna load, and is used for acquiring incident power of the incident power transmission circuit and reflection power of the antenna load and outputting the power; the first detector is connected with the power divider and is used for receiving the incident power and converting the incident power into an incident power monitoring voltage value corresponding to the incident power; the second detector is connected with the power divider and is used for receiving the reflection power and converting the reflection power into a reflection power monitoring voltage value corresponding to the reflection power. On this basis, the power monitoring circuit based on standing wave detection provided by the utility model applies the acquisition circuit to power monitoring, so that monitoring whether transmission power of a final amplification circuit is normally transmitted is achieved, so as to prevent an RF device on an RF signal transmission circuit from being damaged by extremely high transmission power.