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This paper presents a baseband and RF transceiver at 5.2-GHz band for wireless LAN systems. The baseband unit supports 2×2 MIMO-OFDM with an 80-MHz channel and provides the maximum data rate of 600 Mbps. The wider channel of 80 MHz is a candidate technology for the next WLAN standardization of IEEE802.11ac. OFDM tends to cause high peak PAPR for the wider channel and distort power amplifier performance...
A fully integrated system-on-a-chip (SOC) in 130-nm CMOS technology compliant with world-band 802.11a/b/g is presented. This SOC integrates all blocks including 2.4-GHz/5-GHz RF tranceiver, baseband physical layer (PHY), and the medium access controller (MAC). At 1.8 V, the whole SOC dissipates 144/168 mA in receiving mode and 114/150 mA in transmitting mode for 2.4-GHz/5-GHz-band operations. The...
This paper presents the design of a fully integrated receiver front-end for a 2.4 GHz RF transceiver. The proposed receiver front end (low-noise amplifier and mixer) is based on a direct conversion architecture designed in 0.18 mum CMOS technology. The chip provides a down conversion gain to the 50 MHz IF of 13.2 dB, SSB noise figure (NF) of 7.65 dB and a 3rd-order input intercept point (IIP3) of...
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