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Gilbert Mixer CMOS Chip Design: Realization and Optimization

Explore the function of mixers in RF systems, focusing on the realization of Gilbert mixers using CMOS technologies. Learn about critical mixer points like conversion loss and noise figure, along with the advantages of Gilbert cells for improved performance. Follow a project schedule from schematic creation to final design optimization.

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Gilbert Mixer CMOS Chip Design: Realization and Optimization

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  1. CSE598A Analog Mixed Signal CMOS Chip Design FM Mixer CMOS Realization Zhang Yi

  2. CSE598A Analog Mixed Signal CMOS Chip Design Outline: • Mixer’s Function in RF system • Realize Gilbert Mixer by CMOS Technologies • Project Schedule

  3. CSE598A Analog Mixed Signal CMOS Chip Design Mixer ‘s Function in RF system Mixer

  4. CSE598A Analog Mixed Signal CMOS Chip Design Mixer ‘s Function in RF system Up conversion in transmitter Down conversion in receiver

  5. CSE598A Analog Mixed Signal CMOS Chip Design Mixer ‘s Function in RF system Critical points of Mixer: • Image Frequency • Conversion Loss • Noise Figure • Intermodulation Distortion • Port-to-Port Isolation

  6. CSE598A Analog Mixed Signal CMOS Chip Design Realize Gilbert Mixer by CMOS Technologies Intermodulation Distortion 1dB Compression point

  7. CSE598A Analog Mixed Signal CMOS Chip Design Realize Gilbert Mixer by CMOS Technologies Different Mixer’s Type: • Diode Mixer • FET Mixer: • Single-ended FET Mixer • Dual-gate FET Mixer • Differential FET Mixer • Gilbert Cell Mixer

  8. CSE598A Analog Mixed Signal CMOS Chip Design Realize Gilbert Mixer by CMOS Technologies Why Gilbert Cell? Advantages: (1) Both LO and RF are balanced, providing both LO and RF Rejection at the IF output. (2) All ports of the mixer are inherently isolated from each other. (3)Increased linearity compared to singly balanced. (4)Improved suppression of spurious products (all even order products of the LO and/or the RF are suppressed). (8)High intercept points.

  9. CSE598A Analog Mixed Signal CMOS Chip Design Realize Gilbert Mixer by CMOS Technologies Design criteria for the mixer

  10. CSE598A Analog Mixed Signal CMOS Chip Design Project Schedule Week1: Schematic draft and hand calculation Week2: Schematic draw and simulation in Cadence and Hspice Week3: Optimize the schematic and simulation Week4: Optimize layout generated from schematic Week5: Simulated the extracted circuit from layout Week6:Optimize the layout/schematic Week7: Finalize the design.

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