Patent ID: 8069721

Claim:
A radar level gauge system, for determining a filling level of a product contained in a tank, said radar level gauge system comprising: a transceiver including: a signal generator for generating electromagnetic signals for transmission; a transmitter branch for transmitting said electromagnetic signals; and a receiver branch for receiving electromagnetic signals, said transmitter branch and said receiver branch being connected to a common transceiver input/output terminal; a propagation device connected to the transceiver input/output terminal for allowing transmitted electromagnetic signals to propagate towards a surface of said product inside the tank, where signals are reflected, and for returning reflected electromagnetic signals back from said surface of the product; processing circuitry connected to said transceiver and configured to determine said filling level based on said reflected electromagnetic signals; and power level amplifying circuitry connected between said transceiver input/output terminal and said propagation device and configured in such a way that said transmitted electromagnetic signals are attenuated and said reflected electromagnetic signals are amplified.