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2-D Digital Predistortion (2-D-DPD) Architecture for Concurrent Dual-Band Transmitters

Bassam, S. A. ; Helaoui, M. ; Ghannouchi, F. M.

IEEE transactions on microwave theory and techniques, 2011-10, Vol.59 (10), p.2547-2553 [Periódico revisado por pares]

New York, NY: IEEE

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Título:
2-D Digital Predistortion (2-D-DPD) Architecture for Concurrent Dual-Band Transmitters
Autor: Bassam, S. A. ; Helaoui, M. ; Ghannouchi, F. M.
Assuntos: Amplifiers ; Applied sciences ; Architecture ; Channels ; Circuit properties ; Compensation ; Cross-modulation ; digital predistorter (DPD) ; distortion ; Dual band ; Electric, optical and optoelectronic circuits ; Electronic circuits ; Electronic equipment and fabrication. Passive components, printed wiring boards, connectics ; Electronics ; Exact sciences and technology ; intermodulation ; Intermodulation distortion ; Linearization ; Mathematical model ; Microwaves ; Multiaccess communication ; nonlinearity ; power amplifier (PA) ; Radiocommunications ; Sampling ; Signal convertors ; Spread spectrum communication ; Telecommunications ; Telecommunications and information theory ; Transmitters ; Transmitters. Receivers ; Wideband
É parte de: IEEE transactions on microwave theory and techniques, 2011-10, Vol.59 (10), p.2547-2553
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: This paper presents a novel 2-D digital-predistortion (2-D-DPD) technique that is applicable for linearization of concurrent dual-band transmitters. This technique uses a unique way for distortion compensation and linearization of dual-band transmitters by selecting, characterizing, and applying predistortion in each band separately. Compared to conventional linearization techniques, this 2-D-DPD method requires a lower sampling rate for digital-to-analog and analog-to-digital converters. The performance of the 2-D-DPD topology is evaluated using two modulated signals, Worldwide Interoperability for Microwave Access and wideband code-division multiple-access, separated in frequency by 100 MHz. The measurement results show an adjacent channel power ratio of less than -50 dBc and a normalized mean square error of less than -40 dB.
Editor: New York, NY: IEEE
Idioma: Inglês

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2-D Digital Predistortion (2-D-DPD) Architecture for Concurrent Dual-Band Transmitters

Bassam, S. A. ; Helaoui, M. ; Ghannouchi, F. M.

New York, NY: IEEE

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