Patent ID: 7643814

Claim:
A reception arrangement, comprising: a means for receiving a radio-frequency signal; a preamplifier circuit comprising a transistor having a signal input configured to receive the radio-frequency signal from the receiving means, the transistor further having a terminal comprising a signal output configured to provide an amplified signal derived from the radio-frequency signal, the preamplifier circuit further comprising a current path between the signal input and a reference potential, wherein the current path comprises a switch comprising a control input configured to close the switch when the preamplifier circuit is in an inactive state; and a down-conversion frequency mixer having a useful signal input coupled to the signal output of the preamplifier, a local oscillator signal input, and an output configured to provide a down-converted signal based on the amplified signal and the local oscillator signal, wherein the preamplifier circuit comprises, in addition to the transistor which comprises a first transistor, a second transistor coupled to the first transistor, wherein the first and second transistors together are configured to form a balanced amplifier having a balanced signal input and a balanced signal output, and wherein the switch comprises a first switch, the preamplifier circuit further comprising a second switch coupled between a signal input of the second transistor and the reference potential, the second switch comprising a control input configured to close the second switch when the preamplifier is in the inactive state.