A low-power second-order sampling receiver for Bluetooth

The primary objective of the dissertation would be to examine the feasibility of a quadrature radio frequency receiver front-end utilizing a second-order sampling topology in CMOS. Second-order sampling combines subsampling with a non-uniform sampling scheme. This non-uniform sampling scheme consists of 2 uniform sampling streams with a little time delay between both streams, that allows the generation of an I and Q channel. The 2nd objective is to look for the performance limiting mechanisms in the analog domain. The data of the performance limiting mechanisms can be used to implement the critical areas of a decreased power Bluetooth receiver in CMOS and determine the ultimate performance of this type of front-end. It’s hoped that new receiver architectures offer new wireless applications, outperform conventional receivers in existing applications or offer additional features….

1 Introduction
1.1 Project goals and motivation
1.2 Thesis organization
2 Introduction to second-order sampling
2.1 Introduction
2.2 Sampling
2.2.1 Introduction
2.2.2 Bandpass sampling
2.2.3 Non-uniform sampling
2.2.4 Second-order sampling
2.3 Frequency downconversion
2.3.1 Introduction
2.3.2 Downconversion with Nyquist sampling
2.3.3 Downconversion with bandpass sampling
2.3.4 Downconversion with second-order sampling
2.4 Quadrature receiver…

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Source: University of Twente

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