Device for processing or generating a signal, and method for ascertaining an adjustment

A device for processing or generating a signal, comprising:

• a substrate;
• a signal device that is designed for at least one of processing a reception signal and generating a transmission signal;
• an interface device with the aid of which the signal device is coupled to at least one of a transmitting and receiving antenna for at least one of transmitting the generated transmission signal, and receiving the reception signal to be processed;
• a separation device that is designed for separating first signals, which come to the signal device from the interface device, from second signals which come to the interface device from the signal device;
• an output device at which the separated first and second signals are separately tappable for computing an adjustment, the output device:
• tapping the first signals,
• tapping the second signals, and
• computing the adjustment on the basis of the tapped first signals and the tapped second signals;
• wherein the signal device, the interface device, the separation device, and the output device are situated on the substrate, wherein the adjustment represents a quotient of a reflected power output and a continuous power output without reflection, wherein the adjustment indicates a reduction in a transmission power output of the transmission signal, wherein the reduction is by a reflected signal that results from the transmission signal being one of partially and completely reflected at least one of on the interface device and on a junction point between the interface and the antenna.