Cross cancellation technique employing an error amplifier

Heungjae Choi; Yongchae Jeong; J. Stevenson Kenney; Chul Dong Kim

doi:10.1109/LMWC.2008.925098

Cross cancellation technique employing an error amplifier

Heungjae Choi^*
, Yongchae Jeong
, J. Stevenson Kenney
, Chul Dong Kim

^*Corresponding author for this work

Division of Electronic Engineering

IEEE
Jeonbuk National University
Georgia Institute of Technology
Sewon Teletech, Inc.

Research output: Contribution to journal › Journal article › peer-review

6 Scopus citations

Abstract

In this letter, we propose a new distortion cancellation mechanism for a balanced power amplifier (PA) structure using the cross cancellation technique employing an error amplifier. The proposed cross cancellation balanced linear PA is implemented in the IMT-2000 (f₀ = 2.14 GHz) band. With commercial PAs with a peak power of 240 W for base-station application, the proposed system shows 18.6 dB improvement at an average output power of 40 dBm for adjacent channel leakage ratio measurement with wideband code division multiple access 4FA signal. The efficiency of the proposed structure is about 2% higher than the conventional feedforward amplifier for modulated carrier.

Original language	English
Article number	4538237
Pages (from-to)	488-490
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	18
Issue number	7
DOIs	https://doi.org/10.1109/LMWC.2008.925098
State	Published - 2008.07

Keywords

Balanced power amplifier (BPA)
Cross cancellation
Feedforward technique (FFW)
Linearization

Quacquarelli Symonds(QS) Subject Topics

Engineering - Electrical & Electronic
Engineering - Petroleum
Physics & Astronomy

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10.1109/LMWC.2008.925098

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title = "Cross cancellation technique employing an error amplifier",

abstract = "In this letter, we propose a new distortion cancellation mechanism for a balanced power amplifier (PA) structure using the cross cancellation technique employing an error amplifier. The proposed cross cancellation balanced linear PA is implemented in the IMT-2000 (f0 = 2.14 GHz) band. With commercial PAs with a peak power of 240 W for base-station application, the proposed system shows 18.6 dB improvement at an average output power of 40 dBm for adjacent channel leakage ratio measurement with wideband code division multiple access 4FA signal. The efficiency of the proposed structure is about 2\% higher than the conventional feedforward amplifier for modulated carrier.",

keywords = "Balanced power amplifier (BPA), Cross cancellation, Feedforward technique (FFW), Linearization",

author = "Heungjae Choi and Yongchae Jeong and Kenney, \{J. Stevenson\} and Kim, \{Chul Dong\}",

year = "2008",

month = jul,

doi = "10.1109/LMWC.2008.925098",

language = "English",

volume = "18",

pages = "488--490",

journal = "IEEE Microwave and Wireless Components Letters",

issn = "1531-1309",

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TY - JOUR

T1 - Cross cancellation technique employing an error amplifier

AU - Choi, Heungjae

AU - Jeong, Yongchae

AU - Kenney, J. Stevenson

AU - Kim, Chul Dong

PY - 2008/7

Y1 - 2008/7

N2 - In this letter, we propose a new distortion cancellation mechanism for a balanced power amplifier (PA) structure using the cross cancellation technique employing an error amplifier. The proposed cross cancellation balanced linear PA is implemented in the IMT-2000 (f0 = 2.14 GHz) band. With commercial PAs with a peak power of 240 W for base-station application, the proposed system shows 18.6 dB improvement at an average output power of 40 dBm for adjacent channel leakage ratio measurement with wideband code division multiple access 4FA signal. The efficiency of the proposed structure is about 2% higher than the conventional feedforward amplifier for modulated carrier.

AB - In this letter, we propose a new distortion cancellation mechanism for a balanced power amplifier (PA) structure using the cross cancellation technique employing an error amplifier. The proposed cross cancellation balanced linear PA is implemented in the IMT-2000 (f0 = 2.14 GHz) band. With commercial PAs with a peak power of 240 W for base-station application, the proposed system shows 18.6 dB improvement at an average output power of 40 dBm for adjacent channel leakage ratio measurement with wideband code division multiple access 4FA signal. The efficiency of the proposed structure is about 2% higher than the conventional feedforward amplifier for modulated carrier.

KW - Balanced power amplifier (BPA)

KW - Cross cancellation

KW - Feedforward technique (FFW)

KW - Linearization

UR - https://www.scopus.com/pages/publications/46749119884

U2 - 10.1109/LMWC.2008.925098

DO - 10.1109/LMWC.2008.925098

M3 - Journal article

AN - SCOPUS:46749119884

SN - 1531-1309

VL - 18

SP - 488

EP - 490

JO - IEEE Microwave and Wireless Components Letters

JF - IEEE Microwave and Wireless Components Letters

IS - 7

M1 - 4538237

ER -

Cross cancellation technique employing an error amplifier

Abstract

Keywords

Quacquarelli Symonds(QS) Subject Topics

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