Asynchronous polar transmitter and operation method thereof

A polar transmitter comprising:

• a baseband generation unit configured to generate phase data bits and amplitude data bits of an output pulse,
• a bandwidth control unit downstream to the baseband generation unit configured to regulate a width of the output pulse, and
• a pulse shaping unit downstream to the bandwidth control unit configured to generate an amplitude envelope of the output pulse,
• wherein the pulse shaping unit comprises a delay-line with a plurality of taps, wherein each tap output of the plurality of taps is configured to be amplitude weighted to generate the amplitude envelope of the output pulse, and
• wherein the pulse shaping unit is further configured to control a delay and an amplitude weighting at each tap output of the plurality of taps based on the phase data bits and the amplitude data bits to be transmitted.