Patent ID: 8271028

Claim:
An electronic circuit comprising: an input port for receiving a radiofrequency signal, the radiofrequency signal being in one of a first frequency range and a second frequency range, the first frequency range comprising frequencies higher than the frequencies of the second frequency range; a first amplifier for generating a first output signal in dependence upon the radiofrequency signal when the radiofrequency signal is in the first frequency range, the first amplifier having a predetermined first input impedance; a second amplifier for generating a second output signal in dependence upon the radiofrequency signal when the radiofrequency signal is in the second frequency range, the second amplifier having a predetermined second input impedance; a first matching circuit disposed in a first radiofrequency path between the input port and the first amplifier, the first matching circuit for transmitting the first input impedance to the input port when the radiofrequency signal is in the second frequency range and for transforming the first input impedance to a predetermined input port impedance when the radiofrequency signal is in the first frequency range; and, a second matching circuit disposed in a second radiofrequency path between the input port and the second amplifier, the second matching circuit for transmitting the second input impedance to the input port when the radiofrequency signal is in the first frequency range and for transforming the second input impedance to the input port impedance when the input signal is in the second frequency range.