A 1.5 V 2.4 GHz CMOS mixer with high linearity

An RF mixer with high linearity for 2.4 GHz ISM band applications is presented. The mixer is composed of a modified class-AB transconductor stage and a common mode feedback (CMFB) circuitry. With this topology the following simulation results are achieved: input 1-dB compression point (P-1dB) -8.98 dBm, input third-order intercept point (IIP3) 5.46 dBm, power conversion gain 3.3 dB, and single side-band noise figure 14.87 dB. The mixer implemented by tsmc 0.18 mum CMOS process consumes 3.73 mA of current from a 1.5 V power supply

[1]  T. Manku,et al.  A charge-injection method for Gilbert cell biasing , 1998, Conference Proceedings. IEEE Canadian Conference on Electrical and Computer Engineering (Cat. No.98TH8341).

[2]  J.P.K. Gilb.  Bluetooth radio architectures , 2000, 2000 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium Digest of Papers (Cat. No.00CH37096).

[3]  S. Mattisson,et al.  Bluetooth-a new low-power radio interface providing short-range connectivity , 2000, Proceedings of the IEEE.

[4]  Ro-Min Weng,et al.  A 1.5 V high gain CMOS mixer for 2.4-GHz applications , 2001, ISCAS 2001. The 2001 IEEE International Symposium on Circuits and Systems (Cat. No.01CH37196).

[5]  Qiang Li,et al.  CMOS RF mixer no-linearity design , 2001, Proceedings of the 44th IEEE 2001 Midwest Symposium on Circuits and Systems. MWSCAS 2001 (Cat. No.01CH37257).

[6]  Wes Hayward.  Introduction to Radio Frequency Design , 1982 .

[7]  Salvatore Pennisi,et al.  High-linear class AB transconductor for high-frequency applications , 2000, 2000 IEEE International Symposium on Circuits and Systems. Emerging Technologies for the 21st Century. Proceedings (IEEE Cat No.00CH36353).

[8]  C.F. Au-Yeung,et al.  CMOS mixer linearization by the low-frequency signal injection method , 2003, IEEE MTT-S International Microwave Symposium Digest, 2003.

[9]  Mohammed Ismail,et al.  Analysis of nonlinearities in RF CMOS amplifiers , 1999, ICECS'99. Proceedings of ICECS '99. 6th IEEE International Conference on Electronics, Circuits and Systems (Cat. No.99EX357).

[10]  Barrie Gilbert,et al.  The multi-tanh principle: a tutorial overview , 1998, IEEE J. Solid State Circuits.

[11]  Jaap C. Haartsen,et al.  The Bluetooth radio system , 2000, IEEE Personal Communications.

[12]  G.M. Rebeiz,et al.  A 1.9 GHz double-balanced subharmonic mixer for direct conversion receivers , 2001, 2001 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium (IEEE Cat. No.01CH37173).