Title :
A CMOS Wideband Highly Linear Low-Noise Amplifier for Digital TV Applications
Author :
Jeong-Yeol Bae ; Suna Kim ; Hong-Soo Cho ; In-Young Lee ; Ha, Dong Sam ; Sang-Gug Lee
Author_Institution :
Sch. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
Abstract :
This paper presents a highly linear wideband differential low-noise amplifier (LNA) for digital TV applications. The proposed LNA is a modified version of the wideband LNA reported by Bruccoleri in 2004. In order to increase the linearity of Bruccoleri ´s LNA, the Volterra series is adopted to identify the nonlinear components and the noise-cancelling circuit is modified to eliminate the whole nonlinear components. Implemented in 0.13-μm CMOS technology, the proposed wideband LNA has a gain of 12.4 dB and a noise figure of 1.6 dB, as determined from measurements, while drawing 18.45 mA from a 1.2-V supply. The proposed LNA has an IIP3 of 16.6 dBm with 6-MHz frequency offset at 100 MHz, far exceeding the values of existing wideband LNAs.
Keywords :
CMOS analogue integrated circuits; Volterra series; digital television; low noise amplifiers; wideband amplifiers; CMOS wideband highly linear low-noise amplifier; LNA; Volterra series; current 18.45 mA; digital TV applications; frequency 100 MHz; frequency 6 MHz; gain 12.4 dB; noise figure 1.6 dB; noise-cancelling circuit; nonlinear components elimination; size 0.13 mum; voltage 1.2 V; Capacitors; Linearity; Noise; Noise measurement; Transistors; Wideband; Wires; Common source (CS); Volterra series analysis; distortion cancellation; low-noise amplifier (LNA); noise cancelling; resistive shunt feedback; third-order input-referred intercept point ( ${rm IIP}_{3}$); wideband;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2013.2278156
