Abstract:
An 800M/1.8G/2.4GHz multi-band multi-standard single chain transceiver is presented to support terminals under NB-IoT, BLE and ZigBee protocols. The multi-branch co-wound...Show MoreMetadata
Abstract:
An 800M/1.8G/2.4GHz multi-band multi-standard single chain transceiver is presented to support terminals under NB-IoT, BLE and ZigBee protocols. The multi-branch co-wound transformer structure co-designed with RF front-end blocks (i.e., LNA & Power Mixer) is proposed and adopted for compact and efficient in-out matching with moderate Q value. Such co-designed topology enables the single transceiver chain to cover wide-spreading frequency ranging over three times of its minimum band frequency, without compromising performance. The measurement shows that, in receiver chain, the sensitivity is better than −102 dBm, consuming less than 20mW, in transmitter chain, the EVM is 4.63% and 5.2% for NB-IoT multi-tone 12-tone transmission with 0dBm output power in LB and MB. The transceiver has been implemented in 65nm CMOS process, with 1.5mm^{2} and 0.6mm^{2} for receiver and transmitter, respectively. The design is consistent with the requirement of low-cost multi-standard Internet-of-Things (IoT) applications.
Published in: IEEE Transactions on Circuits and Systems II: Express Briefs ( Volume: 69, Issue: 12, December 2022)