The application discloses a 3D heterogeneous
chip-based attenuator and an attenuation method thereof. The 3D heterogeneous
chip-based attenuator comprises a first
radio frequency chip and a second
radio frequency chip. The first
radio frequency chip is provided with a first radio frequency
transmission line for transmitting a
radio frequency signal, a first
coupling member for
coupling radio frequency signal energy and a second
coupling member for coupling
radio frequency signal energy. The first coupling member is electrically connected with an input end of the first radio frequency
transmission line, and the second coupling member is electrically connected with an output end of the first radio frequency
transmission line. The second radio frequency chip is provided with a second radio frequency transmission line for receiving the radio frequency
signal on the first coupling member and outputting the radio frequency
signal to the second coupling member. In the application, the first coupling member and the second coupling member can sequentially couple radio frequency
signal energy to realize radio frequency signal energy attenuation, that is, the attenuator does not need to install a
resistor on the first radio frequency chip when attenuating radio frequency signal energy, which improves the integration of the 3D heterogeneous chip.