| Title | A+21.2 dBm Out-of-Band IIP3 0.2-3GHz RF Front-End Using Impedance Translation Technique |
| Authors | Chen, Long Wang, Chuan Li, Chen Ye, Le Liao, Huailin Huang, Ru |
| Affiliation | Peking Univ, Inst Microelect, Beijing 100871, Peoples R China. |
| Keywords | RECEIVERS |
| Issue Date | 2012 |
| Citation | 2012 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS 2012).. |
| Abstract | This paper presents a SAW-less 0.2-3GHz front-end with high out-of-band linearity. Modified impedance translation technique based on N-path current driven mixer is used to improve out-of-band IIP3. At the input node, an 8-path passive mixer switched by 8-phase clocks at the frequency of f(LO)/2 is utilized to achieve impedance match at f(LO) and filter out-of-band interferes, while contribute negligible noise. Using a 4-path mixer as the LNA load, switched by 4-phase clocks at the frequency of f(LO), out-of-band interferes is further attenuated. Implemented in 65nm CMOS process, the proposed front-end aiming at reconfigurable receivers achieves a NF of 3-5dB from 0.2GHz to 3GHz, out-of-band IIP3 of 21.2dBm, and maximum gain of 45dB, respectively. The front-end consumes 13mA current at 0.2GHz and 27.5mA at 3GHz from a 1.2V voltage supply. |
| URI | http://hdl.handle.net/20.500.11897/292801 |
| ISSN | 0271-4302 |
| Indexed | CPCI-S(ISTP) |
| Appears in Collections: | 信息科学技术学院 |
