Patent ID: 7340011

Claim:
A radiofrequency apparatus comprising: an input for receiving at least one signal S 0 ′, at least one multiplication device adapted to the application of a multiplication coefficient N to the at least one signal S 0 ′ to obtain a signal S 4 at a transmission frequency F e , at least one phase modulation device adapted to modulate at least one signal S 1 with a frequency F m , at least one frequency transposition device, a device configured to mix the modulated signal S 1 at the frequency F m with a transposition frequency F ol , in order to obtain a signal S 3 at a frequency F rf that is substantially equal to F ol +F m , wherein the at least one multiplication device is positioned after said at least one modulation device, the at least one frequency transposition device and the device configured to mix the modulated signal S 1 at the frequency F m with a transposition frequency F ol , wherein the multiplication coefficient N is an odd number greater than or equal to m−1, where m is the number of states of the modulation.