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A 2x2 MIMO Tri-Band Dual-Mode Direct-Conversion CMOS Transceiver for Worldwide WiMAX/WLAN Applications

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12 Author(s)
Kyoohyun Lim ; Future Commun. IC (FCI), Inc., Sungnam, South Korea ; Sunki Min ; Sanghoon Lee ; Jaewoo Park
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This paper describes a fully integrated 130 nm CMOS 2×2 MIMO tri-band dual-mode transceiver for fixed and mobile WiMAX and IEEE 802.11a/b/g/n applications. The proposed transceiver features reduced RF interface (only 4 RF pins) with the wideband circuit topology of the LNA and drive amplifier that minimizes the performance degradation. With carefully chosen LO frequency planning, the transceiver is capable of operating at 2.3-2.7 GHz, 3.3-3.9 GHz, and as well as 5.1-5.9 GHz bands covering whole frequency spectrum of fixed and mobile WiMAX and WLAN. The measured noise figure of the receiver is 3.6-4.2, 4.2-4.7, and 5.4-6.2 dB for each 2/3/5 GHz bands respectively. The measured PLL phase noise from 1 kHz to 10 MHz is 0.5/0.8/0.95 rms degree for 2/3/5 GHz bands respectively. The transceiver ensures low EVM over the wide dynamic range due to linear RX and TX signal paths and low integrated PLL phase noise characteristics.

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:46 ,  Issue: 7 )

Date of Publication:

July 2011

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