Wideband envelope modulator design for wideband power amplifiers

J Zhou; L Wang; KA Morris

doi:10.1109/EUMC.2008.4751797

Wideband envelope modulator design for wideband power amplifiers

J Zhou, L Wang, KA Morris

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

4 Citations (Scopus)

Abstract

A wideband and high-efficiency envelope modulator is proposed for envelope Tracking and envelope elimination and restoration transmitters. The modulator can achieve a power added efficiency of 80% for the envelope of WLAN 802.11a/g signal. The modulator is tested with a high efficiency power amplifier. In the transmitter, the phase signal fed into the power amplifier is modulated by the clipped envelope signal. This relaxes the critical time alignment requirement between the envelope and the phase signal paths in a traditional envelope elimination and restoration transmitter. As a result, the transmitter can achieve an overall PAE of 34.3% while complying with the WLAN 802.11a/g spectrum mask.

Translated title of the contribution	Wideband envelope modulator design for wideband power amplifiers
Original language	English
Title of host publication	38th European Microwave Conference 2008 (EuMC 2008), Amsterdam, Netherlands
Pages	1679 - 1682
Number of pages	4
DOIs	https://doi.org/10.1109/EUMC.2008.4751797
Publication status	Published - Oct 2008

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title = "Wideband envelope modulator design for wideband power amplifiers",

abstract = "A wideband and high-efficiency envelope modulator is proposed for envelope Tracking and envelope elimination and restoration transmitters. The modulator can achieve a power added efficiency of 80% for the envelope of WLAN 802.11a/g signal. The modulator is tested with a high efficiency power amplifier. In the transmitter, the phase signal fed into the power amplifier is modulated by the clipped envelope signal. This relaxes the critical time alignment requirement between the envelope and the phase signal paths in a traditional envelope elimination and restoration transmitter. As a result, the transmitter can achieve an overall PAE of 34.3% while complying with the WLAN 802.11a/g spectrum mask.",

author = "J Zhou and L Wang and KA Morris",

year = "2008",

month = oct,

doi = "10.1109/EUMC.2008.4751797",

language = "English",

isbn = "9782874870064",

pages = "1679 -- 1682",

booktitle = "38th European Microwave Conference 2008 (EuMC 2008), Amsterdam, Netherlands",

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T1 - Wideband envelope modulator design for wideband power amplifiers

AU - Zhou, J

AU - Wang, L

AU - Morris, KA

PY - 2008/10

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N2 - A wideband and high-efficiency envelope modulator is proposed for envelope Tracking and envelope elimination and restoration transmitters. The modulator can achieve a power added efficiency of 80% for the envelope of WLAN 802.11a/g signal. The modulator is tested with a high efficiency power amplifier. In the transmitter, the phase signal fed into the power amplifier is modulated by the clipped envelope signal. This relaxes the critical time alignment requirement between the envelope and the phase signal paths in a traditional envelope elimination and restoration transmitter. As a result, the transmitter can achieve an overall PAE of 34.3% while complying with the WLAN 802.11a/g spectrum mask.

AB - A wideband and high-efficiency envelope modulator is proposed for envelope Tracking and envelope elimination and restoration transmitters. The modulator can achieve a power added efficiency of 80% for the envelope of WLAN 802.11a/g signal. The modulator is tested with a high efficiency power amplifier. In the transmitter, the phase signal fed into the power amplifier is modulated by the clipped envelope signal. This relaxes the critical time alignment requirement between the envelope and the phase signal paths in a traditional envelope elimination and restoration transmitter. As a result, the transmitter can achieve an overall PAE of 34.3% while complying with the WLAN 802.11a/g spectrum mask.

U2 - 10.1109/EUMC.2008.4751797

DO - 10.1109/EUMC.2008.4751797

M3 - Conference Contribution (Conference Proceeding)

SN - 9782874870064

SP - 1679

EP - 1682

BT - 38th European Microwave Conference 2008 (EuMC 2008), Amsterdam, Netherlands

ER -

Wideband envelope modulator design for wideband power amplifiers

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