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PhD_Dissertation_Jianfeng Ren.pdf (6.34 MB)

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CMOS Wide Tuning Gilbert Mixer with Controllable IF Bandwidth in Upcoming RF Front End for Multi-Band Multi-Standard Applications

Ren, Jianfeng
http://rave.ohiolink.edu/etdc/view?acc_num=wright1661535979162414

Abstract Details

2022, Doctor of Philosophy (PhD), Wright State University, Electrical Engineering.
The current global system for mobile communications, wireless local area, Bluetooth, and ultra-wideband demands a multi-band/multi-standard RF front end that can access all the available bandwidth specifications. Trade-offs occur between power consumption, noise figure, and linearity in CMOS Gilbert mixer wide tuning designs. Besides, it is preferable to have a constant IF bandwidth for different gain settings as the bandwidth varies with the load impedance when an RF receiver is tuned to a higher frequency. My dissertation consists of three parts. First, a tunable constant IF bandwidth Gilbert mixer is introduced for multi-band standard wireless applications such as 802.11 a/b/g WLAN and 802.16a WMAN, followed by a design synthesis approach to optimize the mixer to meet the design center frequency range, constant IF bandwidth, and power. A synthesized Gilbert mixer with effective prototype inductors, designed in 180 nm CMOS process, is presented in this dissertation with the tunability of 200 MHz IF, a constant IF bandwidth of 50 MHz, a conversion gain of 13.75 dB, a noise figure of 2.9dB, 1-dB compression point of -15.19 dBm, IIP3 of -5.8 dBm, and a power of 9 mW. Next, mixer inductor loss and equivalent electronic circuit analysis are presented to optimize the approach to offset center frequency and bandwidth inaccuracy due to the inductance loss between the actual and ideal prototype inductor. The proposed tunable Gilbert mixer simulations present a tunable IF of 177.8 MHz, an IF bandwidth of 87.57 MHz, a conversion gain of 7.4 dB, a noise figure of 3.14 dB, 1-dB compression point of -17.1 dBm, and IIP3 of -19.8 dBm. Last, a CMOS integrated wide frequency span CMOS low noise amplifier is integrated with the tunable Gilbert mixer to achieve a 27.68 dB conversion gain, a 3.47 dB low noise figure, -14.6 dBm 1-dB compression point, and -18.6 dBm IIP3.
Chien-In Henry Chen, Ph.D. (Advisor)
Marian K. Kazimierczuk, Ph.D. (Committee Member)
Saiyu Ren, Ph.D. (Committee Member)
Yan Zhuang, Ph.D. (Committee Member)
Meilin Liu, Ph.D. (Committee Member)
115 p.
Electrical Engineering
mobile communications; bandwidth; RF front end; IF bandwidth; Gilbert mixer

Recommended Citations

Citations

  • Ren, J. (2022). CMOS Wide Tuning Gilbert Mixer with Controllable IF Bandwidth in Upcoming RF Front End for Multi-Band Multi-Standard Applications [Doctoral dissertation, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1661535979162414

    APA Style (7th edition)

  • Ren, Jianfeng. CMOS Wide Tuning Gilbert Mixer with Controllable IF Bandwidth in Upcoming RF Front End for Multi-Band Multi-Standard Applications . 2022. Wright State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wright1661535979162414.

    MLA Style (8th edition)

  • Ren, Jianfeng. "CMOS Wide Tuning Gilbert Mixer with Controllable IF Bandwidth in Upcoming RF Front End for Multi-Band Multi-Standard Applications ." Doctoral dissertation, Wright State University, 2022. http://rave.ohiolink.edu/etdc/view?acc_num=wright1661535979162414

    Chicago Manual of Style (17th edition)

wright1661535979162414
116
© 2022, all rights reserved.
This open access ETD is published by Wright State University and OhioLINK.