A fully integrated dual band transceiver for IEEE 802.11a/b/g/j/n WLAN applications using hybrid up/down conversion architecture

A dual-band fully integrated transceiver for IEEE 802.11a/b/g/j/n WLAN was implemented using 0.13nm CMOS technology. The proposed hybrid up/down-conversion architecture, which is mixed double- and direct-conversion, was employed in 5GHz and 2.4GHz bands, respectively, in order to eliminate the needs for high LO frequency generations. The hybrid up/down conversion transceiver was archived with small silicon size by block sharing, including such things as mixer sharing for each band, LPF sharing between Rx and Tx chain and load inductor sharing of the LNA and Mixer of the Rx chain. The error vector magnitude (EVM) limit of proposed receiver was measured to be 3.4/3.1% in the 2.4/5GHz band, respectively. The TX EVM was measured under the average output power of +12dBm with external PA to be 2.9/3.5% in the 2.4/5GHz band, respectively.