Radio frequency conduction test method and related apparatus without a radio frequency switch test socket

A radio frequency conduction test system, wherein the system comprises a board, a radio frequency test probe, and a radio frequency test instrument, wherein

• the board comprises a radio frequency circuit, a first pad, and a second pad, wherein the radio frequency circuit comprises a radio frequency front-end circuit and a radio frequency back-end circuit, the first pad is connected to the radio frequency front-end circuit, the second pad is connected to the radio frequency back-end circuit, the radio frequency front-end circuit and the radio frequency back-end circuit are in an off state, and the first pad and the second pad are pads for a serial device to be welded into the radio frequency circuit;
• the radio frequency test probe is configured to transmit a test signal on the first pad to the radio frequency test instrument;
• and
• the radio frequency test instrument is configured to implement a radio frequency conduction test on the test signal;
• and
• the system further comprises an impedance conversion apparatus and a directional coupler, wherein the impedance conversion apparatus is connected to the radio frequency test probe and the directional coupler, the directional coupler is further connected to the radio frequency test instrument, the impedance conversion apparatus is configured to transmit the test signal in the radio frequency test probe to the directional coupler, the directional coupler is configured to transmit the test signal to the radio frequency test instrument,
• a straight-through output port of the directional coupler is connected to a first measurement port of the radio frequency test instrument, and a coupling output port of the directional coupler is connected to a second measurement port of the radio frequency test instrument.