Comparison of the effectiveness of four linearizing techniques used in SiGe HBT LNA at 1900, MHz and low-bias voltage
In this article, four linearizing techniques are compared with each other when they are used in a common-emitter SiGe HBT LNA. Finally, when all of them are employed together, improved linearity of the LNA is observed and more than 10 dBm of IIP3 and -5 dBm of 1-dB gain input compression point are realized when the circuit is fed with 2.4 V. (C) 2004 Wiley Periodicals, Inc.
linearity hbt lna iip3 low-level voltage