| Title | Quadrature amplitude modulated backscatter for 2.4GHz self-powered chips |
| Authors | Zhang, Luyao Zhang, Hao Shen, Zhengkun He, Mingxiao Hao, Xiucheng Gong, Enbin Ye, Le Liao, Huailin |
| Affiliation | Laboratory of Microelectronic Devices and Circuits (MOE), Institute of Microelectronics, Peking University, Beijing, China |
| Issue Date | 2018 |
| Publisher | 2018 China Semiconductor Technology International Conference, CSTIC 2018 |
| Citation | 2018 China Semiconductor Technology International Conference, CSTIC 2018. 2018, 1-3. |
| Abstract | In this paper, we propose a 16 quadrature amplitude modulated (QAM) backscatter for self-powered chips with a symbol rate of 1 MHz and a 40 Mb/s bit rate in 2.4 GHz Internet of Things (IoT) system. A four-resistor array is implemented to shift amplitude and achieve quadrature amplitude shift keying (QASK). Transmission lines of four different lengths are applied to change backscattering phase and accomplish quadrature phase shift keying (QPSK). Jointly, by applying transmission lines of twelve lengths and resistors of three values, a 16 QAM backscatter is realized, which is compatible with extensive mainstream communication protocols. The whole system is off-chip, completely passive and low-cost, leading to an easy, economic and efficient communication within wireless sensor networks (WSNs). © 2018 IEEE. |
| URI | http://hdl.handle.net/20.500.11897/531011 |
| ISSN | 9781538653081 |
| DOI | 10.1109/CSTIC.2018.8369322 |
| Indexed | EI |
| Appears in Collections: | 信息科学技术学院 |
