NDLI: A 5.2-to-13GHz class-AB CMOS power amplifier with a 25.2dBm peak output power at 21.6% PAE

Content Provider	IEEE Xplore Digital Library
Author	Hua Wang Sideris, C. Hajimiri, A.
Copyright Year	2010
Description	Author affiliation: California Institute of Technology, Pasadena, USA (Hua Wang; Sideris, C.; Hajimiri, A.)
Abstract	increasing demand for higher data rates in communication links has created a need for power amplifiers with large instantaneous bandwidth. Moreover, software-defined radio and smart antenna systems require power stages capable of transmitting at programmable carrier frequencies within a large bandwidth to achieve frequency multiplicity. Also, advanced radar imaging systems, such as through-the-wall imaging, require amplification of broadband signals whose reflection/transmission spectral information can be used for target detection. However, conventional multi-GHz broadband power amplifiers are commonly implemented as distributed amplifiers, which typically have poor power efficiency due to non-optimum load impedance at each stage. Balanced amplifier techniques yield better efficiency but require wide-band on-chip couplers which limit their use within millimeter-wave frequencies due to excessive area consumption for GHz range implementations. To address these issues, we present a power amplifier design technique which enables the output network to track the optimum load impedance across a broad operation bandwidth. This provides high efficiency with small area consumption for broadband power amplification. As an implementation example, a 90nm CMOS PA is presented that achieves a −3dB bandwidth of 7.8GHz (5.2 to 13 GHz) with a peak P of +25.2dBm at a PAE of 21.6%.
Starting Page	44
Ending Page	45
File Size	2801278
Page Count	2
File Format	PDF
ISBN	9781424460335
ISSN	01936530
e-ISBN	9781424460366
DOI	10.1109/ISSCC.2010.5434059
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-02-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power amplifiers Power generation Bandwidth Frequency Broadband amplifiers Delay Voltage Impedance matching Radiofrequency amplifiers Linearity
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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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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