Increasing the talk-time of mobile radios with efficient linear transmitter architectures

被引：17

作者：

Mann, S ^{[1
]}

Beach, M ^{[1
]}

Warr, P ^{[1
]}

McGeehan, J ^{[1
]}

机构：

[1] Univ Bristol, Dept Elect & Elect Engn, Bristol BS81UB, Avon, England

来源：

ELECTRONICS & COMMUNICATION ENGINEERING JOURNAL | 2001年 / 13卷 / 02期

关键词：

D O I：

10.1049/ecej:20010204

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：

Power efficiency of the RF transmitter stage in mobile handsets has a direct impact on battery capacity as well as talk-time between battery recharge cycles. Unfortunately the power amplifier (PA) linearisation methods in common usage today to meet the linearity specification of standards such as GSM EDGE, TETRA and UMTS result in low DC to RF efficiency. This paper discusses the relationship between linearity and tranmitter efficiency and reviews various linearisation schemes: Cartesian loop, polar loop, 2nd harmonic injection, envelope elimination and restoration (EER), predistortion methods, and synthesis techniques (e.g. LINC and CALLUM). The paper also shows that to increase the power efficiency (and thus talk-time) hybrid solutions to power amplifier linearisation are required and these are also discussed.

引用

页码：65 / 76

页数：12

共 39 条

[1] Efficiency and linearity improvement in power amplifiers for wireless communications [J].

Asbeck, P ;

Hanington, G ;

Chen, PF ;

Larson, L .

GAAS IC SYMPOSIUM - 20TH ANNUAL, TECHNICAL DIGEST 1998, 1998, :15-18

[2] Maximisation of Cartesian transmitter linearisation bandwidth [J].

Boloorian, M ;

McGeehan, JP .

ELECTRONICS LETTERS, 1996, 32 (19) :1823-1824

[3]

BOLOORIAN M, 1994, IEE C LIN RF AMPL TR

[4]

Briffa M. A., 1994, Journal of Electrical and Electronics Engineering, Australia, V14, P283

[5]

BRIFFA MA, 1993, 1993 43RD IEEE VEHICULAR TECHNOLOGY CONFERENCE, P672, DOI 10.1109/VETEC.1993.508781

[6]

BROWN AN, 1988, IEE 4 INT C RAD SYST, P200

[7]

CAVERS JK, 1990, 40TH IEEE VEHICULAR TECHNOLOGY CONFERENCE, P41, DOI 10.1109/VETEC.1990.110293

[8]

CHIBA K, 1990, GLOBECOM 90 - IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE & EXHIBITION, VOLS 1-3, P1958, DOI 10.1109/GLOCOM.1990.116821

[9]

Cripps SteveC., 2006, ARTECH MICR, V2nd

[10]

*ETSI, 1996, T EUR TRUNK RAD TE 2

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