Open AccessA mixed-signal MIMO beamforming receiver
Author(s) -
Richard Tseng,
Ada S. Y. Poon,
Yun Chiu
Publication year - 2008
Publication title -
2008 ieee radio and wireless symposium
Language(s) - English
Resource type - Conference proceedings
eISSN - 2164-2974
pISSN - 2164-2958
DOI - 10.1109/rws.2008.4463495
Subject(s) - fields, waves and electromagnetics , components, circuits, devices and systems , engineered materials, dielectrics and plasmas , communication, networking and broadcast technologies
This paper presents a mixed signal MIMO beamforming architecture based on the oversampling and coarse quantization. Due to the strenuous dynamic range and power consumption requirements on analog-to-digital converters (ADC) in fully digital implementations of MIMO systems, a mixed-mode implementation is examined. To achieve an analog implementation of a MIMO beamforming receiver, simultaneous gain and phase-shift control in each receive path is needed. The architecture introduced in this paper both relaxes analog circuit requirements and accomplishes simultaneous gain and phase control for each antenna.
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