Signal converter for wireless communication and receiving device using the same
AssigneeElectronics and Telecommunications Research Institute
InventorsSeung Sik Lee, Bong Hyuk Park, Seunghyun Jang, Sangsung Choi, Changwan Kim
Life of this patent
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Abstract
The present invention relates to a signal converting device and receiving device in a wireless communication system. The receiving device of the wireless communication system includes a differential signal converter for receiving a single ended radio frequency signal and converting it into a differential radio frequency signal, and a frequency down converter for down converting the differential radio frequency signal to down frequency signal.
Claims15
A receiving device of a wireless communication system comprising:
- a differential signal converter receiving a single ended radio frequency signal and converting the single ended radio frequency signal into a differential radio frequency signal;
- and
- a frequency down converter down converting the differential radio frequency signal to down frequency signal,
- wherein the differential signal converter comprises a common gate amplifier and a common source amplifier using a same bias current source, and the common gate amplifier and the common source amplifier are coupled in series between a drive voltage and the bias current source.
A differential signal converting device comprising:
- a common gate amplifier receiving a single ended radio frequency signal and outputting a first radio frequency signal;
- and
- a common source amplifier receiving the single ended radio frequency signal and outputting a second radio frequency signal, wherein
- the common gate amplifier and the common source amplifier use a same bias current source, and the common gate amplifier and the common source amplifier are coupled in series between a drive voltage and the bias current source.
Dependencies are inferred from the claim text.