Design of 2.4GHz Receiver Front-End with Multiple Circuit Performance Enhancement Techniques
Date Issued
2011
Date
2011
Author(s)
Yang, Shih-Chi
Abstract
Recently, with raises of communication system demand, communication speed and production cost turn out to be vital issues. As a result, multi-band operation to enhance the communication efficiency and multi-band combination to lower the production costs are expected. Unfortunately, the development of CMOS circuits has been long impeded by inherent shortcomings such as parasitic components. It is still a challenging task for designers to realize CMOS circuits near the transistor cutoff frequency.
In this thesis, to operate in multi-band in an effective chip area, novel circuit topologies are developed for dual-band operations. In Chapter 3, an inductor-reconfiguration technique is introduced to the dual-band T/R switch, thus the single inductor can be reused in the transmitting and receiving modes. In Chapter 4, by switching the matching circuit, the noise figure of the dual-band LNA can be improved in a small chip area.
Subjects
front-end
current consumption
linearity
MGTR
single-to-differential
Type
thesis
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