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Design of the RF COMS Mixer

Guobo Wang

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Abstract

Basic operating principle,performance of CMO S mixer and some kinds of mixer structure are introduced.A two port differ balanced mixer based on the Gilbert cell is designed.This mixer was fabricated using a TSMC 0.18μm CMOS technology.The LO and RF frequency is 2.25GHz and 2.5GHz,simulated with the ADS software.The described mixer has achieved a conversion gain of-10 dB,double side noise figure of 58.6 dB,1 dB compression point of 11 dBm,also has a high port Isolation.The described mixer is used for the middle or high frequency transmitter.

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What this paper is about

Basic operating principle,performance of CMO S mixer and some kinds of mixer structure are introduced.A two port differ balanced mixer based on the Gilbert cell is designed.This mixer was fabricated using a TSMC 0.18μm CMOS technology.The LO and RF frequency is 2.25GHz and 2.5GHz,simulated with the ADS software.The described mixer has achieved a conversion gain of-10 dB,double side noise figure of 58.6 dB,1 dB compression point of 11 dBm,also has a high port Isolation.The described mixer is used for the middle or high frequency transmitter.

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Available abstract

Basic operating principle,performance of CMO S mixer and some kinds of mixer structure are introduced.A two port differ balanced mixer based on the Gilbert cell is designed.This mixer was fabricated using a TSMC 0.18μm CMOS technology.The LO and RF frequency is 2.25GHz and 2.5GHz,simulated with the ADS software.The described mixer has achieved a conversion gain of-10 dB,double side noise figure of 58.6 dB,1 dB compression point of 11 dBm,also has a high port Isolation.The described mixer is used for the middle or high frequency transmitter.

Key concepts: Frequency mixer, Electronic mixer, Intermediate frequency, Harmonic mixer, Port (circuit theory), Materials science, Radio frequency, CMOS

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