Design and analysis of a high-linear UWB CMOS mixer

Author

Gholami, Soroosh ; Shamsi, H. ; Mirzaie, H. ; Mirzahosseini, D.

Author_Institution

Fac. of Electr. Eng., K.N. Toosi Univ. of Technol., Tehran, Iran

fYear

2011

fDate

17-19 May 2011

Firstpage

1

Lastpage

1

Abstract

This paper describes the design, simulation and analysis of a high-linearity, high-gain, low-power, and inductorless 3.1-4.8 GHz ultra-wideband (UWB) down-conversion mixer in a 1.8V, 0.18 μm CMOS process. In the proposed structure, using the modified derivative superposition and current-bleeding techniques, the linearity of the conventional Gilbert-cell mixer is increased about 10 dBm without losing the conversion gain. In addition, there is a noticeable decrease in the power consumption of the conventional mixer. Furthermore, the S₁₁ and conversion gain of the mixer are hand calculated and the validity of the analytical formulas are verified by simulation results.

Keywords

CMOS integrated circuits; low-power electronics; microwave mixers; Gilbert cell mixer; UWB CMOS mixer; current bleeding techniques; downconversion mixer; frequency 3.1 GHz to 4.8 GHz; high gain mixer; high linearity mixer; low power mixer; modified derivative superposition; power consumption; size 0.18 mum; voltage 1.8 V; Gilbert-cell mixer; Ultra-wideband; current bleeding; derivative superposition;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering (ICEE), 2011 19th Iranian Conference on

Conference_Location

Tehran

Print_ISBN

978-1-4577-0730-8

Type

conf

Filename

5955802