Analog controlled adaptive feedforward amplifier for IMT-2000 band

Young Jean Song; In Ju Oh; Kyu Jae Seo; Yong Chae Jeong; Chul Dong Kim

doi:10.1109/EUMA.2002.339283

Analog controlled adaptive feedforward amplifier for IMT-2000 band

Young Jean Song
, In Ju Oh
, Kyu Jae Seo
, Yong Chae Jeong
, Chul Dong Kim

Division of Electronic Engineering

Research output: Conference(x) › Paper › peer-review

Abstract

A novel adaptive design for feedforward amplifier linearizer with analog controller is proposed in this paper. Compared previous adaptive linearizing method, this is new design which does not require any pilot signal and intentional signal distortion. In main signal cancellation loop, magnitude and phase of two-path signal in subtracter are compared mutually and controlled for main signal cancellation. In distortion signal cancellation loop, gain and phase of each path is controlled to maintain constant, so that the same level and out-of phase of two-path distortion signal are obtained. A prototype feedforward amplifier with the proposed linearizer has been tested for 3-carrier IS-95 CDMA signals and 20.25dB ACPR is improved.

Original language	English
DOIs	https://doi.org/10.1109/EUMA.2002.339283
State	Published - 2002
Event	2002 32nd European Microwave Conference, EuMC 2002 - Milan, Italy Duration: 2002.09.23 → 2002.09.26

Conference

Conference	2002 32nd European Microwave Conference, EuMC 2002
Country/Territory	Italy
City	Milan
Period	02.09.23 → 02.09.26

Quacquarelli Symonds(QS) Subject Topics

Computer Science & Information Systems
Engineering - Electrical & Electronic
Engineering - Petroleum

Access to Document

10.1109/EUMA.2002.339283

Cite this

@conference{bcab6f10941f4b7d9d765701b1d43f4c,

title = "Analog controlled adaptive feedforward amplifier for IMT-2000 band",

abstract = "A novel adaptive design for feedforward amplifier linearizer with analog controller is proposed in this paper. Compared previous adaptive linearizing method, this is new design which does not require any pilot signal and intentional signal distortion. In main signal cancellation loop, magnitude and phase of two-path signal in subtracter are compared mutually and controlled for main signal cancellation. In distortion signal cancellation loop, gain and phase of each path is controlled to maintain constant, so that the same level and out-of phase of two-path distortion signal are obtained. A prototype feedforward amplifier with the proposed linearizer has been tested for 3-carrier IS-95 CDMA signals and 20.25dB ACPR is improved.",

author = "Song, \{Young Jean\} and Oh, \{In Ju\} and Seo, \{Kyu Jae\} and Jeong, \{Yong Chae\} and Kim, \{Chul Dong\}",

year = "2002",

doi = "10.1109/EUMA.2002.339283",

language = "English",

note = "2002 32nd European Microwave Conference, EuMC 2002 ; Conference date: 23-09-2002 Through 26-09-2002",

}

TY - CONF

T1 - Analog controlled adaptive feedforward amplifier for IMT-2000 band

AU - Song, Young Jean

AU - Oh, In Ju

AU - Seo, Kyu Jae

AU - Jeong, Yong Chae

AU - Kim, Chul Dong

PY - 2002

Y1 - 2002

N2 - A novel adaptive design for feedforward amplifier linearizer with analog controller is proposed in this paper. Compared previous adaptive linearizing method, this is new design which does not require any pilot signal and intentional signal distortion. In main signal cancellation loop, magnitude and phase of two-path signal in subtracter are compared mutually and controlled for main signal cancellation. In distortion signal cancellation loop, gain and phase of each path is controlled to maintain constant, so that the same level and out-of phase of two-path distortion signal are obtained. A prototype feedforward amplifier with the proposed linearizer has been tested for 3-carrier IS-95 CDMA signals and 20.25dB ACPR is improved.

AB - A novel adaptive design for feedforward amplifier linearizer with analog controller is proposed in this paper. Compared previous adaptive linearizing method, this is new design which does not require any pilot signal and intentional signal distortion. In main signal cancellation loop, magnitude and phase of two-path signal in subtracter are compared mutually and controlled for main signal cancellation. In distortion signal cancellation loop, gain and phase of each path is controlled to maintain constant, so that the same level and out-of phase of two-path distortion signal are obtained. A prototype feedforward amplifier with the proposed linearizer has been tested for 3-carrier IS-95 CDMA signals and 20.25dB ACPR is improved.

UR - https://www.scopus.com/pages/publications/84897522440

U2 - 10.1109/EUMA.2002.339283

DO - 10.1109/EUMA.2002.339283

M3 - Paper

AN - SCOPUS:84897522440

T2 - 2002 32nd European Microwave Conference, EuMC 2002

Y2 - 23 September 2002 through 26 September 2002

ER -

Analog controlled adaptive feedforward amplifier for IMT-2000 band

Abstract

Conference

Quacquarelli Symonds(QS) Subject Topics

Access to Document

Other files and links

Fingerprint

Cite this