Title :
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.
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 (;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2006.880384
