Title :
Circuit techniques for CMOS multiple-antenna transceivers
Author :
Allstot, David J. ; Aniruddhan, Sankaran ; Banerjee, Gaurab ; Chu, Min ; Li, Xiaoyong ; Paramesh, Jeyanandh ; Shekhar, Sudip ; Soumyanath, K.
Author_Institution :
Dept. of Electr. Eng., Univ. of Washington, Seattle, WA, USA
Abstract :
Circuit techniques are described for multiple-antenna transceivers. A device desensitization technique aimed at simultaneously realizing the optimum noise and input match in LNA circuits is followed by a transformer-coupling technique in common-gate LNA circuits that reduces NF and power. Next, a Colpitts VCO improves start-up and maintains excellent phase-noise performance. Finally, a Cartesian combining method applied to MIMO transceivers is overviewed.
Keywords :
CMOS analogue integrated circuits; MIMO systems; antenna radiation patterns; circuit noise; integrated circuit design; interference suppression; phase noise; radiofrequency amplifiers; random noise; transceivers; voltage-controlled oscillators; CMOS multiple-antenna transceivers; Cartesian combining method; Colpitts VCO; MIMO transceivers; NF reduction; circuit techniques; common-gate LNA circuits; design considerations; device desensitization technique; interference cancellation; low-noise amplifier; measured array pattern; noise factor; optimum input matching; optimum noise; phase-noise performance; power reduction; transformer-coupling technique; voltage-controlled oscillators; CMOS technology; Circuit noise; Coupling circuits; Impedance matching; Impedance measurement; Noise figure; Noise measurement; Noise reduction; Transceivers; Voltage-controlled oscillators;
Conference_Titel :
Radio Frequency integrated Circuits (RFIC) Symposium, 2005. Digest of Papers. 2005 IEEE
Print_ISBN :
0-7803-8983-2
DOI :
10.1109/RFIC.2005.1489639
