Up-converter and mobile terminal having the same
AssigneeLG Electronics Inc.
InventorsOssi TOIVONEN, Sami VILHONEN
Life of this patent
Estimating the term…
Abstract
A mobile terminal including an up-converter converting a baseband (BB) signal into a radio frequency (RF) signal and a controller controlling a voltage applied to the up-converter is provided. The up-converter includes a first transistor and a second transistor each having a gate to which a baseband voltage is applied, a third transistor having a drain connected in parallel to a drain of the first transistor, and a fourth transistor having a drain connected in parallel to a drain of the second transistor, and the up-converter and the mobile terminal with improved phase linearity characteristics may be provided.
Claims15
A mobile terminal comprising:
- an up-converter converting a baseband (BB) signal into a radio frequency (RF) signal;
- and
- a controller controlling a voltage applied to the up-converter,
- wherein the up-converter includes:
- a first transistor and a second transistor each having a gate to which a baseband voltage is applied;
- a third transistor having a drain connected in parallel to a drain of the first transistor;
- and a fourth transistor having a drain connected in parallel to a drain of the second transistor.
An up-converter for converting a baseband signal into a radio frequency (RF) signal, the up-converter comprising:
- a first transistor and a second transistor each having a gate to which a baseband voltage is applied;
- a third transistor having a drain connected in parallel to a drain of the first transistor;
- and
- a fourth transistor having a drain connected in parallel to a drain of the second transistor,
- wherein the drain of the first transistor and the drain of the second transistor output a first RF signal and a second RF signal through a transistor connected in series, respectively.
Dependencies are inferred from the claim text.