A Low-Voltage Broadband Feedforward-Linearized BJT Mixer

Author

Lim, Su-Tarn ; Long, John R.

Author_Institution

Electron. Res. Lab./DIMES, Delft Univ. of Technol.

Volume

41

Issue

9

fYear

2006

Firstpage

2177

Lastpage

2187

Abstract

A low-voltage, feedforward-linearized bipolar mixer realizes an input IP₃ of +14.3 dBm and an input IP₂ of +54.5 dBm at 2.4 GHz. Conversion (power) gain over the 1-6GHz RF input range is 12.4plusmn0.35 dB, while the input IP₃ is 13.6plusmn1.8dBm over the same frequency range. The broadband mixer´s RF input impedance varies from 60.3-j7.1 at 2.4 GHz to 57.4-j16.6 Omega at 5.8GHz. Measured SSB (50 Omega) noise figure is 18.6 dB at 2.4 GHz. No on-chip inductors are used in the design, and the 0.14 mm ² (active area) mixer dissipates 7.2 mW from a (minimum) 1.2 V supply

Keywords

UHF mixers; bipolar integrated circuits; low-power electronics; 18.6 dB; 2.4 GHz; 5.8 GHz; 7.2 mW; RF input impedance; broadband BJT mixer; broadband mixer; conversion gain; feedforward-linearized BJT mixer; feedforward-linearized bipolar mixer; noise figure; Baseband; Costs; Energy consumption; Impedance; Linearity; Noise figure; Radio frequency; Radiofrequency integrated circuits; Receivers; Ultra wideband technology; Active mixer; BiCMOS; SiGe-HBT; distortion cancellation; feedforward linearization; silicon radio frequency integrated circuits; third-order input intercept point (;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/JSSC.2006.880384

Filename

1683909