Efficient Baseband/RF feedforward linearizer through a mirror power amplifier using software-defined radio and quadrature digital up-conversion

被引：0

作者：

Jeckeln, EG ^{[1
]}

Ghannouchi, FM ^{[1
]}

Sawan, M ^{[1
]}

Beauregard, F ^{[1
]}

机构：

[1] Ecole Polytech, Dept Elect & Comp Engn, Montreal, PQ H3C 3A7, Canada

来源：

2001 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST, VOLS 1-3 | 2001年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper describes an efficient feedforward linearizer suitable for base station 3G power amplifiers based on and using both software-defined radio and quadrature digital up-conversion technologies. The linearizer accomplishes the extraction of the PA complex nonlinear behavior in real time and performs a numerical quasi-perfect carrier's cancellation that allows the reduction of the power rating of the error amplifier (EA) and eliminates the requirement for any output delay line. This enhances the overall power efficiency of the feedforward amplifier. The entire system is validated using DSP/RF cosimulation for the LDMOS model of a typical 44 dBm class AB power amplifier (PA(AB)) as the main amplifier.

引用

页码：789 / 792

页数：4

共 3 条

[1] Software-defined digital radio baseband processor using Blackfin DSP
Krzak, Lukasz
Mielniczuk, Rafal
Worek, Cezary
[J]. ICSES 2008 INTERNATIONAL CONFERENCE ON SIGNALS AND ELECTRONIC SYSTEMS, CONFERENCE PROCEEDINGS, 2008, : 523 - 525
[2] Efficient Heterodyne Digital Receiver with Direct RF-to-Digital Conversion for Software Defined Radio
Kim, Minseok
Moteki, Takayuki
Ichige, Koichi
Arai, Hiroyuki
[J]. IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, 2009, E92A (04) : 1056 - 1062
[3] VLSI Design and Implementation of Efficient Software Defined Radio using Optimized Quadrature Direct Digital Frequency Synthesizer on FPGA
Vishnu, G.
Karthik, P.
Jabeen, Fathima
[J]. SECOND INTERNATIONAL SYMPOSIUM ON COMPUTER VISION AND THE INTERNET (VISIONNET'15), 2015, 58 : 414 - 421

← 1 →