Radio Frequency Transmitter
AssigneeHuawei Technologies Co., Ltd.
InventorsZemin Feng, Chenlong Hou
Life of this patent
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Abstract
A radio frequency transmitter includes a digital-to-analog converter, a passive network, two buffers, a frequency mixer, and a power amplifier. Two output ends of the digital-to-analog converter are respectively coupled to two input nodes of the passive network, and the two output ends of the digital-to-analog converter are respectively coupled to input ends of the two buffers. Output ends of the two buffers are respectively coupled to two input ends of the frequency mixer. An output end of the frequency mixer is coupled to an input end of the power amplifier. An output end of the power amplifier is coupled to an antenna. The passive network is configured to perform filtering processing on an input current signal, and convert the current signal into a voltage signal.
Claims20
A radio frequency transmitter, comprising:
- an antenna;
- a power amplifier comprising:
- a first input end;
- and
- a first output end configured to couple to the antenna;
- a frequency mixer comprising:
- a second input end;
- a third input end;
- and
- a second output end configured to couple to the first input end;
- a first buffer comprising:
- a fourth input end;
- and
- a third output end configured to couple to the second input end;
- a second buffer comprising:
- a fifth input end;
- and
- a fourth output end configured to couple to the third input end;
- a passive network comprising a first input node and a second input node and configured to:
- perform filtering processing on an input current signal;
- and
- convert the input current signal into a voltage signal;
- and
- a digital-to-analog converter comprising:
- a fifth output end configured to couple to the first input node and the fourth input end;
- and
- a sixth output end configured to couple to the second input node and fifth input end.
Dependencies are inferred from the claim text.