Analog IC-achievable lineariser for power amplifiers based on adaptive feedforward

被引：4

作者：

Albertí, EB ^{[1
]}

Sahad, AJZ ^{[1
]}

机构：

[1] Univ Politecn Cataluna, Dept Signal Theory & Commun, Barcelona 08034, Spain

来源：

ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 2002年 / 33卷 / 03期

关键词：

feedforward lineariser; power amplifiers; LMS algorithm; analog signal processing; analog integrated circuits;

D O I：

10.1023/A:1020775811962

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A compensation technique for the amplitude and phase imbalances of a feedforward lineariser using the LMS algorithm, implemented entirely in the analog domain, is presented. The lineariser is suited to RF power amplifiers, and maybe entirely developed with analog IC technologies. From simulated two-tone tests, the circuit leads to an intermodulation (IMD) reduction superior to 35 dB for a 64-QAM signal, being cheaper and competitive in performance with usual DSP-based adaptation circuits. Different implementations are evaluated, and the application of the circuit to RF power amplifiers in the DVB-T and in the LMDS frequency bands is considered.

引用

页码：231 / 238

页数：8

共 14 条

[1]

[Anonymous], P 5 INT C UN PERS CO

[2] The optimal RLS parameter tracking algorithm for a power amplifier feedforward linearizer [J].

Chen, JT ;

Tsai, HS ;

Chen, YK .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING, 1999, 46 (04) :464-468

[3]

Cripps SteveC., 2006, ARTECH MICR, V2nd

[4] Low-power low-noise active mixers for 5.7 and 11.2 GHz using commercially available SiGe HBT MMIC technology [J].

Durr, W ;

Erben, U ;

Schuppen, A ;

Dietrich, H ;

Schumacher, H .

ELECTRONICS LETTERS, 1998, 34 (21) :1994-1996

[5] InP-based MMIC components for an optical phase-locked loop [J].

Goetz, PG ;

Eisele, H ;

Yang, K ;

Syao, KC ;

Qasaimeh, O ;

Bhattacharya, P .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1999, 47 (07) :1241-1250

[6] CMOS transconductance multipliers:: A tutorial [J].

Han, G ;

Sánchez-Sinencio, E .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 1998, 45 (12) :1550-1563

[7] A parallel structure for CMOS four-quadrant analog multipliers and its application to a 2-GHz RF downconversion mixer [J].

Hsiao, SY ;

Wu, CY .

IEEE JOURNAL OF SOLID-STATE CIRCUITS, 1998, 33 (06) :859-869

[8]

JOHANSSON T, 1999, P IEEE RUSS C

[9]

MASUDA T, 1998, INT SOL STAT CIRC C

[10]

Regis M., 2000, 2000 Asia-Pacific Microwave Conference. Proceedings (Cat. No.00TH8522), P771, DOI 10.1109/APMC.2000.925946

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