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Design and fabrication of 2.4 GHz pre-biased rectifier
| Title: | Design and fabrication of 2.4 GHz pre-biased rectifier |
| Authors: | Otsu, Yutaro Browse this author | | Kubo, Keishi Browse this author | | Ikebe, Masayuki Browse this author | | Sano, Eiichi Browse this author →KAKEN DB |
| Keywords: | Rectifier | | Sensor network | | 2.4 GHz | | RF | | Low-power pulse generator | | Subthreshold CMOS |
| Issue Date: | May-2014 |
| Publisher: | Springer |
| Journal Title: | Analog integrated Circuits and Signal Processing |
| Volume: | 79 |
| Issue: | 2 |
| Start Page: | 301 |
| End Page: | 307 |
| Publisher DOI: | 10.1007/s10470-014-0256-6 |
| Abstract: | A 2.4 GHz rectifier operating in a region of low RF input power was developed. The rectifier has a cross-coupled bridge configuration and is driven by a differential RF input signal. Since a rectifier needs an RF signal higher than the threshold voltage of transistors, we introduced a pre-biasing circuit to compensate for the threshold voltage. A low-voltage digital circuit, subthreshold voltage regulator, and low-power level shifter were introduced for reducing the power consumption of the pre-biasing circuit and increasing the driving voltage for the switches at the same time. The circuit simulations revealed that the pre-biasing circuit was effective in a low RF input power region. However, the output voltage was degraded in a high power region. Then, we combined the pre-biased rectifier in parallel with a non-biased rectifier. Three types of rectifiers consisting of LC matching circuits, three-stage rectifier cells, and biasing circuits were designed and fabricated using a 0.18-mu m mixed signal/RF CMOS process with one poly and six metal layers. The fabricated pre-biased rectifier operated in a region of RF input power of less than -15 dBm, while the non-biased rectifier could not operate in this region. The parallel combination of pre-biased and non-biased rectifiers effectively solved the drawback of the pre-biased rectifier in a high RF input power region. |
| Rights: | The final publication is available at link.springer.com |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/58540 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 佐野 栄一
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