Circuit and mobile communication device

A mobile communication device comprising:

• a transmitter having a first transmission stage for generating a first transmission signal according to a first standard and a bias stage for generating a bias signal for a second standard;
• and
• a second transmission stage for generating a second transmission signal according to the second standard;
• wherein the second transmission stage is effectively coupled to the bias stage in order to receive the bias signal;
• an antenna connection;
• wherein an output of the circuit, at which the circuit provides the first transmission signal and the second transmission signal, is coupled to the antenna connection.

A circuit comprising:

• a transmitter having an integrated circuit which comprises a first transmission stage for generating a first transmission signal according to a first standard and a bias stage for generating a bias signal for a second standard;
• and
• a further integrated circuit which comprises a second transmission stage for generating a second transmission signal according to the second standard;
• wherein the further integrated circuit is outside the integrated circuit of the transmitter and the integrated circuit is based on a CMOS process and the further integrated circuit is based on a GaAs process;
• wherein the second transmission stage is effectively coupled to the bias stage in order to receive the bias signal;
• and
• wherein the second transmission stage is effectively coupled to the first transmission stage in order to receive a further signal generated by the first transmission stage and in order to generate the second transmission signal on the basis of the received further signal and the received bias signal.