W-CDMA High Power Amplifier using Anti-Phase Intermodulation Distortion Linearization Technology

W-CDMA High Power Amplifier using Anti-Phase Intermodulation Distortion Linearization Technology

This paper shows how the ACLR of power amplifier can be reduced by using Anti-phase IMD linearization technique which generate Anti-phase IMD in the driver stage compare to output stage's IMD. Brief theory and design process are proposed. From the experimental result of 4-carriers W-CDMA input...

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Hauptverfasser: Ji-Hoon Do, Won-Tae Kang, Jeong-Seok Jang, Ui-Seok Hong
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Anti-phase
Driver circuits
High power amplifiers
HPA
IMD
Intermodulation distortion
Linear circuits
Linearity
Linearization
Multiaccess communication
Power amplifiers
Power generation
Process design
Voltage
WCDMA
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Won-Tae Kang
Jeong-Seok Jang
Ui-Seok Hong
description This paper shows how the ACLR of power amplifier can be reduced by using Anti-phase IMD linearization technique which generate Anti-phase IMD in the driver stage compare to output stage's IMD. Brief theory and design process are proposed. From the experimental result of 4-carriers W-CDMA input signal, this amplifier has ACLR -55 dBc@5 MHz offset at 44.7 dBm(30 watts) average output power. Compare to optimum matching technique to get maximum power gain, this technique has been improved ACLR by 12 dBc.
doi_str_mv 10.1109/APMC.2007.4554685
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subjects Anti-phase
Driver circuits
High power amplifiers
HPA
IMD
Intermodulation distortion
Linear circuits
Linearity
Linearization
Multiaccess communication
Power amplifiers
Power generation
Process design
Voltage
WCDMA
title W-CDMA High Power Amplifier using Anti-Phase Intermodulation Distortion Linearization Technology
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