RF CMOS Tunable Gilbert Mixer with Wide Tuning Frequency andControllable Bandwidth: Design Sythesis and Verification
Institution: | Wright State University |
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Department: | |
Year: | 2017 |
Keywords: | Electrical Engineering; Engineering; Wide Tuning Frequency; Controllable Bandwidth; Low Power; High Conversion Gian; Low Noise Figure; Good Linearity; Trade-offs |
Posted: | 02/01/2018 |
Record ID: | 2219238 |
Full text PDF: | http://rave.ohiolink.edu/etdc/view?acc_num=wright149572725296626 |
The double-balanced Gilbert mixer is widely used in RFreceivers. In general, it is desirable to design a wide tuningfrequency Gilbert mixer for low power, high conversion gain, lownoise figure, and good linearity, but they are not easy to attainsimultaneously. Therefore, trade-offs always exist by tuning designparameters. To observe the trade-off relationship between eachtunable parameter and to make a mixer achieve specifiedrequirements easily (i.e., tuning frequency range, bandwidth, andpower), an automated design synthesis and verification approach forGilbert mixer is proposed. A wide tuning CMOS Gilbert mixer designsynthesis while keeping the local oscillator frequency of 2 GHz ispresented as an example. Designed in 180 nanometer CMOS process,the tunable Gilbert mixer achieves a tuning frequency span of 2 GHz(1.1 - 3.1 GHz), a controllable bandwidth of ~50 MHz, a highconversion gain (0.5 6.4 dB), a low noise figure (6.81 8.36dB), and a power of 9 mW.Advisors/Committee Members: Chen , Henry (Advisor).