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Bijari, A., Mallaki, M. A.. (1402). A Merged LNA-Mixer with Wide Variable Conversion Gain and Low Noise Figure for WLAN Direct-Conversion Receivers. فناوری آموزش, 12(1), 175-186. doi: 10.22061/jecei.2023.10124.679
A. Bijari; M. A. Mallaki. "A Merged LNA-Mixer with Wide Variable Conversion Gain and Low Noise Figure for WLAN Direct-Conversion Receivers". فناوری آموزش, 12, 1, 1402, 175-186. doi: 10.22061/jecei.2023.10124.679
Bijari, A., Mallaki, M. A.. (1402). 'A Merged LNA-Mixer with Wide Variable Conversion Gain and Low Noise Figure for WLAN Direct-Conversion Receivers', فناوری آموزش, 12(1), pp. 175-186. doi: 10.22061/jecei.2023.10124.679
Bijari, A., Mallaki, M. A.. A Merged LNA-Mixer with Wide Variable Conversion Gain and Low Noise Figure for WLAN Direct-Conversion Receivers. فناوری آموزش, 1402; 12(1): 175-186. doi: 10.22061/jecei.2023.10124.679

A Merged LNA-Mixer with Wide Variable Conversion Gain and Low Noise Figure for WLAN Direct-Conversion Receivers

Journal of Electrical and Computer Engineering Innovations (JECEI)
مقاله 12، دوره 12، شماره 1، فروردین 2024، صفحه 175-186    اصل مقاله (1.37 M)
نوع مقاله: Original Research Paper
شناسه دیجیتال (DOI): 10.22061/jecei.2023.10124.679
نویسندگان
A. Bijari* 1؛ M. A. Mallaki2
1Deptartment of Electrical Engineering, Faculty of Electrical and Computer Engineering, University of Birjand, Birjand, Iran.
2Department of Electrical Engineering, Faculty of Electrical and Computer Engineering, University of Birjand, Birjand, Iran.
تاریخ دریافت: 18 خرداد 1402،  تاریخ بازنگری: 07 مهر 1402،  تاریخ پذیرش: 16 مهر 1402 
چکیده
Background and Objectives: In wireless communications, receivers play an essential role. Among receiver architectures, the direct-conversion receiver (DCR) architecture has been selected due to its high level of integration and low cost. However, it suffers from DC offset due to self-mixing, I/Q imbalance, and flicker noise.
Methods: This paper presents a new LNA-mixer with variable conversion gain (VG-LM) for wireless local area network (WLAN) applications. A low noise transconductance amplifier (LNTA) is used as the transconductance stage in the Gilbert cell mixer. The wide variable conversion gain range is achieved by the change in LNTA’s transconductance and transconductance of the mixer switching transistors.
Results: The proposed LNA-mixer is designed and simulated using 0.18µm CMOS technology in Cadence Spectre RF. The post-layout simulations exhibit the proposed circuit operates at 2.4 GHz with a bandwidth of 10 MHz. In addition, the conversion gain is changed from -3.9 dB to 23.9 dB with the variation of the controlled DC voltage from 0.5 to 1.8. At the high gain, the double-sideband noise figure (DSB-NF) is less than 3.7 dB, and its third-order intermodulation point (IIP3) is -9 dBm. The power consumption is 22 mW from the supply voltage of 1.8 V. The circuit occupies 743 µm×775 µm of core chip area.
Conclusion: Using the proposed circuit, the RF front end receiver does not need the low noise amplifier (LNA) and variable gain amplifier (VGA).
کلیدواژه‌ها
Variable Conversion Gain؛ Low Noise Transconductance Amplifier (LNTA)؛ Active mixer؛ Noise Figure
مراجع
[1] R. Mahmou, K. Faitah, “High linearity, low power RF mixer design in 65nm CMOS technology,” AEU Int. J. Electron. Commun., 68(9): 883-888, 2014.

[2] J. Borremans, P. Wambacq, C. Soens, Y. Rolain, M. Kuijk, “Low-area active-feedback low-noise amplifier design in scaled digital CMOS,” IEEE J. Solid-State Circuits, 43(11): 2422-2433, 2008.

[3] W. Chong, H. Ramiah, G. Tan, N. Vitee, J. Kanesan, “Design of ultra-low voltage integrated CMOS based LNA and mixer for ZigBee application,” AEU Int. J. Electron. Commun., 68(2): 138-142, 2014.

[4] J. Chen, W. Wang, “A K-band low-noise and high-gain down-conversion active mixer using 0.18-μm CMOS technology,” Wireless Pers. Commun., 104(1): 407-421, 2018.

[5] N. Seyedhosseinzadeh, A. Nabavi, “Design of an active CMOS subharmonic mixer with enhanced transconductance,” AEU Int. J. Electron. Commun., 73(1): 98-104, 2017.

[6] D. M. Pozar, Microwave and RF Design of Wireless Systems, John Wiley & Sons, 2000.

[7] M. Heping, H. Xu, B. Chen, Y. Shi, "An ISM 2.4 GHz low power low-IF RF receiver front-end," J. Semicond., 36( 8), 2015.

[8] S. Amirabadizadeh, A. Bijari, H. Alizadeh, N. Mehrshad, "Performance improvement of a down-conversion active mixer using negative admittance," Circuits Syst. Signal Process., 40(1): 22-49, 2021.

[9] T. J. Rouphael, Wireless Receiver Architectures and Design: Antennas, RF, synthesizers, mixed-signal, and digital signal processing, Academic Press, 2014.

[10] A. D. Gungordu, N. Tarim, "Design of a constant-bandwidth variable-gain amplifier for LTE receivers," Analog Integr. Circuits Signal Process., 97: 27-38, 2018.

[11] H. D. Lee, K. A. Lee, S. Hong, "A wideband CMOS variable gain amplifier with an exponential gain control," IEEE Trans. Microwave Theory Tech., 55(6): 1363-1373, 2007.

[12] M. A. Martins, L. B. Oliveira, J. R. Fernandes, "Combined LNA and mixer circuits for 2.4 GHz ISM band," in Proc. 2009 IEEE International Symposium on Circuits and Systems: 425-428, 2009.

[13] C. W. Ryu, C. S. Cho, J. W. Lee, J. Kim, "A low power 45 dB dynamic-range variable gain mixer in 0.18µm CMOS," in Proc. 2009 IEEE MTT-S International Microwave Symposium Digest: 585-588, 2009.

[14] V. Kolios, G. Kalivas, "A 60 GHz down-conversion mixer with variable gain and bandwidth in 130 nm CMOS technology," in Proc. 2016 5th International Conference on Modern Circuits and Systems Technologies (MOCAST): 1-4, 2016.

[15] M. Wang, C. E. Saavedra, "Reconfigurable broadband mixer with variable conversion gain," in Proc. 2011 IEEE MTT-S International Microwave Symposium: 1-4, 2011.

[16] C. Wu, H. Chou, “A 2.4 GHz variable conversion gain mixer with body bias control techniques for low voltage low power applications,” in Proc. 2009 Asia Pacific Microwave Conference: 1561-1564, 2009.

[17] C. Kalamani, "Design of differential LNA and double balanced mixer using 180 nm CMOS technology," Microprocess. Microsyst., 71: 102850, 2019.

[18] B. Hu, X. Yu, L. He, "A Gm-boosted and current peaking wideband merged LNA and mixer," in Proc. 2010 IEEE International Conference on UltraWideband (ICUWB): 1-4, 2010.

[19] S. C. Gladson, K. Alekhya, M. Bhaskar, "A fully CMOS RF down-converter with 81.88 dB SFDR for IEEE 802.15.4 based wireless systems," Microsyst. Technol., 28: 745-760, 2022.

[20] L. Cao et al., "A 5.8 GHz digitally controlled CMOS receiver with a wide dynamic range for Chinese ETC system," IEEE Trans. Circuits Syst. II Express Briefs, 65(6): 754-758, 2018.

[21] B. Guo, J. Gong, Y. Wang, "A Wideband differential linear low-noise transconductance amplifier with active-combiner feedback in complementary MGTR configurations," IEEE Trans. Circuits Syst. I Regul. Pap., 68(1): 224-237, 2021.

[22] B. Razavi, RF Microelectronics, 2nd ed. Upper Saddle River, NJ: Prentice Hall, 2011.

[23] A. Bijari, S. Zandian, "Linearity improvement in a CMOS down-conversion active mixer for WLAN applications," Analog Integr. Circuits Signal Process., 100: 483-493, 2019.

[24] C. H. Chen, M. J. Deen, “Channel noise modeling of deep submicron MOSFETs,” IEEE Trans. Electron. Devices, 49(8): 1484–1487, 2002.

[25] J. Xu, C. E. Saavedra, G. Chen, "A 12 GHz-Bandwidth CMOS mixer with variable conversion Gain capability," IEEE Microwave Wireless Compon. Lett., 21(10): 565-567, 2011.

[26] M. Barzgari, A. Ghafari, M. Meghdadi, A. Medi, "A current re-use quadrature RF receiver front-end for low power applications: blixator circuit," IEEE J. Solid-State Circuits, 57(9): 2672-2684, 2022.

[27] X. Fan, J. Tao, K. Bao, Z. Wang, "A reconfigurable passive mixer for multimode multistandard receivers in 0.18 μm CMOS," J. Semicond., 37(8): 085001, 2016.

[28] N. Vitee, H. Ramiah, P. I. Mak, J. Yin, R. P. Martins, "A 3.15-mW +16.0-dBm IIP3 22-dB CG inductively source degenerated balun-LNA mixer with integrated transformer-based gate inductor and IM2 injection technique," in IEEE Trans. Very Large Scale Integr. VLSI Syst., 28(3): 700-713, 2020.

[29] F. Jiang, C. E. Saavedra, "Codesign of Mixer-VGA downconverter blocks," Can. J. Electr. Comput. Eng., 38(3): 199-203, 2015.

[30] S. Bae, D. Kim, D. Kim, I. Nam, D. Im, "A reconfigurable passive mixer-based sub-ghz receiver front-end for fast spectrum sensing functionality," IEEE Trans. Circuits Syst. I: Regul. Pap., 68(2): 892-903, 2021.

 

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