2-GHz Class-E Power Amplifier Using a Compact Redundancy-Free Harmonic Tuning Circuit

Shinichi Tanaka; Hirotaka Asami

doi:10.23919/EuMC48046.2021.9338171

2-GHz Class-E Power Amplifier Using a Compact Redundancy-Free Harmonic Tuning Circuit

Shinichi Tanaka, Hirotaka Asami

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Citations (Scopus)

Abstract

A novel harmonic tuning circuit (HTC) for Class-E power amplifier is presented. Conventional HTCs unavoidably use long transmission lines (TLs) to tune the 2nd and 3rd harmonics simultaneously, resulting in increased circuit size and decreased bandwidth. Such redundant circuit configuration arises from the characteristics of the electromagnetic waves in microstrip lines. It is shown that, using two CRLH TL stubs, the HTC can be designed without redundancy and thus with significantly reduced circuit size. The HTC was applied to a 2-GHz GaN HEMT Class-E power amplifier, demonstrating output power of 38.6 dBm, drain efficiency of 78.5% and PAE of 74.0%.

Original language	English
Title of host publication	2020 50th European Microwave Conference, EuMC 2020
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	13-16
Number of pages	4
ISBN (Electronic)	9782874870590
DOIs	https://doi.org/10.23919/EuMC48046.2021.9338171
Publication status	Published - 2021 Jan 12
Event	50th European Microwave Conference, EuMC 2020 - Utrecht, Netherlands Duration: 2021 Jan 12 → 2021 Jan 14

Publication series

Name	2020 50th European Microwave Conference, EuMC 2020

Conference

Conference	50th European Microwave Conference, EuMC 2020
Country/Territory	Netherlands
City	Utrecht
Period	21/1/12 → 21/1/14

Keywords

Class-E
Class-F
composite right-/left-handed transmission lines
harmonic tuning
power amplifiers
power-added efficiency

ASJC Scopus subject areas

Computer Networks and Communications
Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials
Instrumentation

Access to Document

10.23919/EuMC48046.2021.9338171

Cite this

2-GHz Class-E Power Amplifier Using a Compact Redundancy-Free Harmonic Tuning Circuit. / Tanaka, Shinichi; Asami, Hirotaka.
2020 50th European Microwave Conference, EuMC 2020. Institute of Electrical and Electronics Engineers Inc., 2021. p. 13-16 9338171 (2020 50th European Microwave Conference, EuMC 2020).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Tanaka, S & Asami, H 2021, 2-GHz Class-E Power Amplifier Using a Compact Redundancy-Free Harmonic Tuning Circuit. in 2020 50th European Microwave Conference, EuMC 2020., 9338171, 2020 50th European Microwave Conference, EuMC 2020, Institute of Electrical and Electronics Engineers Inc., pp. 13-16, 50th European Microwave Conference, EuMC 2020, Utrecht, Netherlands, 21/1/12. https://doi.org/10.23919/EuMC48046.2021.9338171

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title = "2-GHz Class-E Power Amplifier Using a Compact Redundancy-Free Harmonic Tuning Circuit",

abstract = "A novel harmonic tuning circuit (HTC) for Class-E power amplifier is presented. Conventional HTCs unavoidably use long transmission lines (TLs) to tune the 2nd and 3rd harmonics simultaneously, resulting in increased circuit size and decreased bandwidth. Such redundant circuit configuration arises from the characteristics of the electromagnetic waves in microstrip lines. It is shown that, using two CRLH TL stubs, the HTC can be designed without redundancy and thus with significantly reduced circuit size. The HTC was applied to a 2-GHz GaN HEMT Class-E power amplifier, demonstrating output power of 38.6 dBm, drain efficiency of 78.5% and PAE of 74.0%.",

keywords = "Class-E, Class-F, composite right-/left-handed transmission lines, harmonic tuning, power amplifiers, power-added efficiency",

author = "Shinichi Tanaka and Hirotaka Asami",

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doi = "10.23919/EuMC48046.2021.9338171",

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AU - Asami, Hirotaka

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N2 - A novel harmonic tuning circuit (HTC) for Class-E power amplifier is presented. Conventional HTCs unavoidably use long transmission lines (TLs) to tune the 2nd and 3rd harmonics simultaneously, resulting in increased circuit size and decreased bandwidth. Such redundant circuit configuration arises from the characteristics of the electromagnetic waves in microstrip lines. It is shown that, using two CRLH TL stubs, the HTC can be designed without redundancy and thus with significantly reduced circuit size. The HTC was applied to a 2-GHz GaN HEMT Class-E power amplifier, demonstrating output power of 38.6 dBm, drain efficiency of 78.5% and PAE of 74.0%.

AB - A novel harmonic tuning circuit (HTC) for Class-E power amplifier is presented. Conventional HTCs unavoidably use long transmission lines (TLs) to tune the 2nd and 3rd harmonics simultaneously, resulting in increased circuit size and decreased bandwidth. Such redundant circuit configuration arises from the characteristics of the electromagnetic waves in microstrip lines. It is shown that, using two CRLH TL stubs, the HTC can be designed without redundancy and thus with significantly reduced circuit size. The HTC was applied to a 2-GHz GaN HEMT Class-E power amplifier, demonstrating output power of 38.6 dBm, drain efficiency of 78.5% and PAE of 74.0%.

KW - Class-E

KW - Class-F

KW - composite right-/left-handed transmission lines

KW - harmonic tuning

KW - power amplifiers

KW - power-added efficiency

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2-GHz Class-E Power Amplifier Using a Compact Redundancy-Free Harmonic Tuning Circuit

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Access to Document

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