High efficiency distributed amplifier using optimum transmission line

Sigyun Jeong; Heungjae Choi; Yongchae Jeong; J. Stevenson Kenney; Chuldong Kim

doi:10.1109/EUMC.2007.4405386

High efficiency distributed amplifier using optimum transmission line

Sigyun Jeong^*
, Heungjae Choi
, Yongchae Jeong
, J. Stevenson Kenney
, Chuldong Kim

^*Corresponding author for this work

Division of Electronic Engineering

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

Research output: Contribution to conference › Conference paper › peer-review

4 Scopus citations

Abstract

In this paper, we performed numerical analysis on reversed current of distributed amplifier (DA) based on transmission line theory and proposed optimum transmission line (OTL) to cancel reversed currents. This OTL has improved electrical performances of DA. The distributed amplifier using optimum transmission line (DAOTL) has been implemented with pHEMT transistor. Due to high capacitance of pHEMT, cutoff frequency is decided to 3.6GHz. As a result of measurement, we could obtain maximum gain of 14.5dB and minimum gain of 12.8dB inner operation band. Moreover, we could PAE of 25.6% which is higher about 7.6% than the conventional DA (CDA) at 3GHz. The output power was obtained 10.9dBm which is higher about 1.7dB than the conventional at 3GHz.

Original language	English
Title of host publication	Proceedings of the 37th European Microwave Conference, EUMC
Pages	1085-1088
Number of pages	4
DOIs	https://doi.org/10.1109/EUMC.2007.4405386
State	Published - 2007
Event	37th European Microwave Conference, EUMC - Munich, Germany Duration: 2007.10.9 → 2007.10.12

Publication series

Name	Proceedings of the 37th European Microwave Conference, EUMC

Conference

Conference	37th European Microwave Conference, EUMC
Country/Territory	Germany
City	Munich
Period	07.10.9 → 07.10.12

Quacquarelli Symonds(QS) Subject Topics

Engineering - Electrical & Electronic
Engineering - Petroleum

Access to Document

10.1109/EUMC.2007.4405386

Cite this

@inproceedings{c416126b6c28450c820462a18a0cac0c,

title = "High efficiency distributed amplifier using optimum transmission line",

abstract = "In this paper, we performed numerical analysis on reversed current of distributed amplifier (DA) based on transmission line theory and proposed optimum transmission line (OTL) to cancel reversed currents. This OTL has improved electrical performances of DA. The distributed amplifier using optimum transmission line (DAOTL) has been implemented with pHEMT transistor. Due to high capacitance of pHEMT, cutoff frequency is decided to 3.6GHz. As a result of measurement, we could obtain maximum gain of 14.5dB and minimum gain of 12.8dB inner operation band. Moreover, we could PAE of 25.6\% which is higher about 7.6\% than the conventional DA (CDA) at 3GHz. The output power was obtained 10.9dBm which is higher about 1.7dB than the conventional at 3GHz.",

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

year = "2007",

doi = "10.1109/EUMC.2007.4405386",

language = "English",

isbn = "9782874870033",

series = "Proceedings of the 37th European Microwave Conference, EUMC",

pages = "1085--1088",

booktitle = "Proceedings of the 37th European Microwave Conference, EUMC",

note = "37th European Microwave Conference, EUMC ; Conference date: 09-10-2007 Through 12-10-2007",

}

Jeong, S, Choi, H, Jeong, Y, Kenney, JS & Kim, C 2007, High efficiency distributed amplifier using optimum transmission line. in Proceedings of the 37th European Microwave Conference, EUMC., 4405386, Proceedings of the 37th European Microwave Conference, EUMC, pp. 1085-1088, 37th European Microwave Conference, EUMC, Munich, Germany, 07.10.9. https://doi.org/10.1109/EUMC.2007.4405386

TY - GEN

T1 - High efficiency distributed amplifier using optimum transmission line

AU - Jeong, Sigyun

AU - Choi, Heungjae

AU - Jeong, Yongchae

AU - Kenney, J. Stevenson

AU - Kim, Chuldong

PY - 2007

Y1 - 2007

N2 - In this paper, we performed numerical analysis on reversed current of distributed amplifier (DA) based on transmission line theory and proposed optimum transmission line (OTL) to cancel reversed currents. This OTL has improved electrical performances of DA. The distributed amplifier using optimum transmission line (DAOTL) has been implemented with pHEMT transistor. Due to high capacitance of pHEMT, cutoff frequency is decided to 3.6GHz. As a result of measurement, we could obtain maximum gain of 14.5dB and minimum gain of 12.8dB inner operation band. Moreover, we could PAE of 25.6% which is higher about 7.6% than the conventional DA (CDA) at 3GHz. The output power was obtained 10.9dBm which is higher about 1.7dB than the conventional at 3GHz.

AB - In this paper, we performed numerical analysis on reversed current of distributed amplifier (DA) based on transmission line theory and proposed optimum transmission line (OTL) to cancel reversed currents. This OTL has improved electrical performances of DA. The distributed amplifier using optimum transmission line (DAOTL) has been implemented with pHEMT transistor. Due to high capacitance of pHEMT, cutoff frequency is decided to 3.6GHz. As a result of measurement, we could obtain maximum gain of 14.5dB and minimum gain of 12.8dB inner operation band. Moreover, we could PAE of 25.6% which is higher about 7.6% than the conventional DA (CDA) at 3GHz. The output power was obtained 10.9dBm which is higher about 1.7dB than the conventional at 3GHz.

UR - https://www.scopus.com/pages/publications/48349128773

U2 - 10.1109/EUMC.2007.4405386

DO - 10.1109/EUMC.2007.4405386

M3 - Conference paper

AN - SCOPUS:48349128773

SN - 9782874870033

T3 - Proceedings of the 37th European Microwave Conference, EUMC

SP - 1085

EP - 1088

BT - Proceedings of the 37th European Microwave Conference, EUMC

T2 - 37th European Microwave Conference, EUMC

Y2 - 9 October 2007 through 12 October 2007

ER -

High efficiency distributed amplifier using optimum transmission line

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