Patent ID: 8923368
Filing Date: 2014-12-30
Classification: H04B,H04L

Abstract:
1. A radio frequency transmitter comprising: a first low pass filter; a second low pass filter; a first filter input port connected to an input terminal of the first low pass filter; a second filter input port connected to an input terminal of the second low pass filter; a first filter output port connected to an output terminal of the first low pass filter; a second filter output port connected to an output terminal of the second low pass filter; an I/Q modulator; an I input port connected to an I input terminal of the I/Q modulator; a Q input port connected to an Q input terminal of the I/Q modulator; and a Radio Frequency (RF) output port connected to an output terminal of the I/Q modulator, wherein the I input port is connected to one of the low pass filters and an external filter for digital-Intermediate Frequency (IF) according of an operating mode of the radio frequency transmitter.