. Cmos Mixer with Improved Linearity
نویسنده
چکیده
A new linearization technique for a CMOS high frequency mixer will be presented. The reduction of the total harmonic distortion coefficient is achieved by replacing the simple differential amplifier from the basic multiplier circuit with a cross-connection differential amplifier, with the advantage of canceling the third-order harmonic from the output signal expression. The circuit was implemented in m 35 0 μ . CMOS technology and it was supplied at V 3 VCC = . The transient and Fourier analysis for high frequency input signals ( GHz 5 2 2 1 . = = ω ω and GHz 5 2 1 . = ω ; GHz 25 2 2 . = ω ) confirm the theoretical estimated results (an improvement in linearity of about dB 8 ).
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