Low-voltage Low-power Folded Mixer Using Current-reuse Technical for IEEE 802.11b Wireless Application

Abstract

In this paper, a new CMOS low-voltage, low-power folded up-conversion mixer using current-reuse Technique based on Chartered 0.18 ¼m RF CMOS technology for 2.4 GHz IEEE 802.11 b WLAN receiver applications is presented. Because of the current-reuse Technique and the folded structure used in the mixer, the mixer can realize self-biasing, and the bias voltages at the local oscillator (LO) and the intermediate frequency (IF) terminals are not necessary. Moreover, the post-layout simulation results demonstrate that the proposed mixer can provide about 9.5 dB conversion gain with 1 V supply voltage, while the power consumption is only 258 ¼W, and the 1 dB compression point and input-referred third-order intercept point (IIP3) of the mixer are 3.2 dBm and 3.8 dBm, respectively. The chip area including test pads is only 0.75 × 0.80 mm². Comparing with the previously reported mixers, the proposed mixer has the advantages of lower supply voltage, lower power consumption, higher linearity, and smaller chip area than most of the other reported works.

Keywords:

• CMOS
• Current-reuse
• IEEE 802.11b
• Low power
• Low voltage
• Mixer
• Radio frequency

Additional information

Notes on contributors

Shiqiang Chen

Shiqiang Chen received the M.S. degree in Computer Software and Theory from Institute of Computer Software, Guizhou University, Guiyang, China, in 2005. His research interests mainly focus on network measurement and monitoring, wireless sensor network, and network security technology E-mail: [email protected]

Jie Jin

Jie Jin received his B.Sc. from Shenzhen University of Imformation Engineering, the M.S. degree from Information Science and Engineering, Hunan University, Hunan, China. His research interests include current-mode circuit design, RFIC circuits design. E-mail: [email protected]

Wen Zhang

Wen Zhang received the M.S. degree in Computer Software and Theory from Institute of Computer Software, Guizhou University, Guiyang, China, in 2005. His research interests mainly focus on computer network technology, wireless sensor network, and Internet of things E-mail: [email protected]