A WIDEBAND CMOS CASCADED VARIABLE GAIN AMPLIFIER USING UNEQUALLY DISTRIBUTED GAIN CONTROL FOR DVB-S.2 RECEIVER-Reference-Cited by-同舟云学术

A WIDEBAND CMOS CASCADED VARIABLE GAIN AMPLIFIER USING UNEQUALLY DISTRIBUTED GAIN CONTROL FOR DVB-S.2 RECEIVER

Published:2013-10 Issue:09 Volume:22 Page:1340008
ISSN:0218-1266
Container-title:Journal of Circuits, Systems and Computers
language:en
Short-container-title:J CIRCUIT SYST COMP

Author:

HWANG HYEONSEOK¹,KIM HOONKI¹,JEONG CHAN-HUI¹,KWON CHAN-KEUN¹,JEON SANGGEUN¹,KIM SOO-WON¹,NA YOOSAM²,YOO HYUNHWAN²

Affiliation:

1. Department of Electrical Engineering, Korea University, Seoul 136-701, Korea

2. Central R&D Center, Samsung Electro-Mechanics Corporation, Suwon 445-701, Korea

Abstract

A fully integrated three stage cascaded radio frequency variable gain amplifier (RFVGA) linearly controlled by exponential current generation circuit is presented. The gain control is unequally distributed in each stage for noise figure (NF) and linearity performance. The dB-linear gain control is realized using pseudo exponential current generated by CMOS current summing circuit with a voltage to current converter. The RFVGA has over 50 dB dynamic range. Gain changes from -38.5 to 16.8 dB according to control voltage that varies from 0.5 to 1.8 V. It operates at 0.95–2.15 GHz. This design is implemented in 0.18 μm CMOS technology.

Publisher

World Scientific Pub Co Pte Lt

Subject

Electrical and Electronic Engineering,Hardware and Architecture,Electrical and Electronic Engineering,Hardware and Architecture

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0218126613400082

Reference4 articles.

1. A Broadband CMOS RF Front-End for Universal Tuners Supporting Multi-Standard Terrestrial and Cable Broadcasts

2. A Wideband CMOS Variable Gain Amplifier With an Exponential Gain Control

3. Analysis and Design of RF CMOS Attenuators

4. Compact Wideband Linear CMOS Variable Gain Amplifier for Analog-Predistortion Power Amplifiers

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