A 5.25ghz Monolithic Image-rejection Mixer
نویسندگان
چکیده
This paper describes the implementation of the image rejection mixer block in the 5GHz frequency band using 0.18μm CMOS technology. The image rejection mixer block adopts the double-quadrature topology for high image-rejection ratio in the high frequency applications and is designed for the dual-conversion receiver. The loss of the polyphase filter in the signal path can be reduced with simple parallel resonant circuit for low DC power consumption. This image rejection mixer block consumes 42 mA from 1.8V supply voltage. The simulated result shows the power gain of 18dB, IIP3 of +2.5dBm, and NF of 7dB. The image rejection ratio is estimated >55dBc.
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