Design of Front End of UWB Receivers

Please enable javascript in your browser.

Darvishi, Milad | 2009

791 Viewed

Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 39067 (05)
University: Sharif University of Technology
Department: Electrical Engineering
Advisor(s): Sadughi, Sirous; Haj Sadeghi, Khosro
Abstract:
This Project deals with the Low-Noise Amplifier (LNA) and High-Q Band-Stop filter for a UWB receiver designed using a standard 0.18um CMOS process. These LNAs cover the frequency band of 1 to 11 GHz. Stringent sensitivity and low noise figure requirements, presence of strong in-band interferers and the ultra wide band operation are the main design challenges of the receiver and the LNA. In this thesis, Three LNAs with good performance and good input matching are designed. Two of them used Common gate topology with gm-Boosting technique to reduce the noise figure. Also because of wide bandwidth requirement, the bandwidth of these LNAs is improved by Inductive shunt and series peaking techniques. The third LNA is a distributed amplifier that benefits from intrinsic wideband performance. In this work, one way to reduce the noise figure of this amplifier is proposed. In addition, because of the existence of powerful interferer in the UNII band, a new bandstop filter with Q enhancement technique is embedded to the distributed low noise amplifier
Keywords:
Low Noise Amplifier (LNA) ; Noise Removing ; Distributed Amplifier ; Bandpass Filters ; Ultra Wideband ; Ultra Wide Band (UWB)Amplifier ; Q-Enhancement Technique

No TOC