Attenuation apparatus and test system

An attenuation apparatus, comprising:

• a signal transmission channel, configured to perform transmission attenuation on energy of a transmitted signal;
• and
• at least one radiation loss structure, provided in the signal transmission channel;
• wherein the radiation loss structure has a first working state and a second working state;
• wherein when in the first working state, the radiation loss structure is configured to perform radiation attenuation on energy of a signal transmitted by the signal transmission channel;
• when in the second working state, the radiation loss structure is configured to perform transmission attenuation on energy of a signal transmitted by the signal transmission channel,
• wherein the radiation loss structure comprises a radiation loss unit and a physical switch;
• wherein when the physical switch is in an opened state, a radiation transmission path of a corresponding radiation loss unit is unblocked, and the radiation loss unit is configured to perform radiation attenuation on the energy of the signal transmitted by the signal transmission channel;
• when the physical switch is in a closed state, the radiation transmission path of the corresponding radiation loss unit is blocked, and the radiation loss unit is configured to perform transmission attenuation on the energy of the signal transmitted by the signal transmission channel,
• wherein the radiation loss unit comprises a slot radiation unit.