Design and analysis of transmit/receive switch in triple-well CMOS for MIMO wireless systems
Poh, Andrew Hoe Suan
Zhang, Yue Ping
Date of Issue2007
School of Electrical and Electronic Engineering
This paper presents the design and analysis of an RF transmit/receive switch in CMOS for multiple-input multiple-output (MIMO) wireless systems. First, both full-range and abridged quad-pole quad-throw (4P4T) switch architectures for MIMO systems with four antenna elements are comparatively studied. The full-range 4P4T switch is selected for circuit implementation because of its more switching states and lower insertion loss. The series connection and body-floating techniques are then employed in the circuit design to achieve an acceptable performance. Fabricated in 0.12-µm triple-well CMOS with an effective die area 0.35 X 0.19 mm2, the 4P4T switch exhibits less than 2.7-dB insertion loss and higher than 20-dB isolation over the frequency range from 2 to 10 GHz. It also attains measured power-handling capability more than 25 dBm at 2.4 and 5.8 GHz.
DRNTU::Engineering::Electrical and electronic engineering
IEEE transactions on microwave theory and techniques
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