A 2.4GHz CMOS Gilbert Mixer in 180nm Technology

This paper presents the design of an analog CMOS Gilbert cell Mixer for RF Receiver front end application. Input RF frequency of the mixer is 2.4GHz and operated at 1.8V power supply. The schematic has been implemented using UMC-180nm CMOS technology and simulated on spectre-RF simulator of Cadence. The input RF and LO frequency of the proposed mixer is 2.4GHz and 2.25GHz respectively, resulting in an output IF frequency of 250MHz. It achieves a conversion Gain of around 13dB and considerable NF. IIP3 and 1-db Compression point are also measured. Layout design and extracted view of the mixer is also presented in this paper.