A Narrowband LNA for Galileo System and 900MHz Envelope Elimination and Restoration Power Amplifier
Date Issued
2010
Date
2010
Author(s)
Shih, Hung-Lung
Abstract
In first part of this thesis, a LNA was designed for Galileo satellite navigation system. The LNA combines with a narrowband band-pass filter. The LNA will have narrowband band-pass filter response, so we can reduce some components of Galileo system receiver. The narrowband LNA has good noise and gain. We implement the narrowband LNA in 0.18-μm CMOS process.
In the second part, we designed a Class-E power amplifier in an envelope elimination and restoration system (EER) at 900MHz CDMA IS-95. In the modern communication systems, we hope good quality and long time of communication. Generally, the switch mode power amplifier has good efficiency, but this amplifier has poor linearity. Hence, we can improve linearity of this amplifier by EER system. Finally, we can get a good efficiency and linearity performance.
Subjects
wireless communication system
Galileo satellite navigation system
LNA
Class-E power amplifier
EER
Type
thesis
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