NDLI: Design of a 40Watt Ultra broadband linear power amplifier using LDMOSFETs

Content Provider	IEEE Xplore Digital Library
Author	Seo, M. Kyungwon Kim Minsu Kim Hyungchul Kim Jeongbae Jeon Jaewoo Sim Myungkyu Park Youngoo Yang
Copyright Year	2010
Description	Author affiliation: School of Information and Communication Engineering, Sungkyunkwan University, Suwon, 440-746, Republic of Korea Tpc (Seo, M.; Kyungwon Kim; Minsu Kim; Hyungchul Kim; Jeongbae Jeon; Youngoo Yang) \|\| Peopleworks, Inc., Seoul, 152-766, Republic of Korea (Jaewoo Sim; Myungkyu Park)
Abstract	A 40Watt linear power amplifier based on silicon LDMOSFETs is presented. It has ultra broadband characteristics from 2 to 512MHz. The proposed amplifier has a push-pull structure using Guanella 1∶1 and 1∶4 transmission line transformers for its input and output baluns, respectively. A negative feedback network is also adopted for broadband operation with a flat gain response. To achieve high linearity, the bias condition for almost class-A operation is applied. Based on the proposed concept, a two-stage broadband amplifier is implemented. A P1dB of more than 40Watt (46dBm) is achieved over the entire frequency band. The implemented power amplifier exhibits a power gain response of 43.3±1.8dB and a PAE of greater than 28.3% at each P1dB over the band. The second- and third-harmonic distortions are below −28.5dBc and −19dBc at each P1dB, respectively. Furthermore, at an average output power level of 41dBm for the two-tone signal input, which has a tone spacing of 1MHz, the IMD3 over the entire band is below ±30.1dBc.
Starting Page	414
Ending Page	417
File Size	889716
Page Count	4
File Format	PDF
ISBN	9781424475902
e-ISBN	9784902339215
e-ISBN	9781902339222
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-12-07
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	IEICE Institute of Electronics Informati
Subject Keyword	Broadband amplifiers Power amplifiers Transmission line measurements Impedance matching Power measurement Inductors feedback Broadband power amplifier broadband impedance transformer push-pull
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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