学位論文

サブサンプリングミキサとΔΣADCを用いた無線受信器の高性能化に関する研究

A high performance receiver using a subsampling mixer and Delta-Sigma ADC

jpn

2012-03-24

Not Applicable (or Unknown)

2012-03-24

修士(工学)

工学研究科電気工学専攻; 指導教授: 安田彰

In this paper, we propose a high performance receiver architecture for wireless communication systems, such as Bluetooth. This architecture uses a subsampling mixer and a delta-sigma modulator. The proposed sub-sampling mixer has complex band-pass characteristics. The band-pass filter suppresses the aliasing noise generated by the subsampling mixer. The proposed discrete time delta-sigma modulator has an up-conversion mixer and a down-conversion mixer. An intermediate frequency signal converted from a radio frequency by the subsampling mixer is inputted into the delta-sigma modulator. The delta-sigma modulator input signal is converted to a baseband signal by the internal mixer. After that the baseband analog signal is converted to a digital signal.

Thesis