TY - GEN
T1 - 2-GHz Class-E Power Amplifier Using a Compact Redundancy-Free Harmonic Tuning Circuit
AU - Tanaka, Shinichi
AU - Asami, Hirotaka
N1 - Publisher Copyright:
© 2021 EuMA.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/1/12
Y1 - 2021/1/12
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
UR - http://www.scopus.com/inward/record.url?scp=85100938522&partnerID=8YFLogxK
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U2 - 10.23919/EuMC48046.2021.9338171
DO - 10.23919/EuMC48046.2021.9338171
M3 - Conference contribution
AN - SCOPUS:85100938522
T3 - 2020 50th European Microwave Conference, EuMC 2020
SP - 13
EP - 16
BT - 2020 50th European Microwave Conference, EuMC 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 50th European Microwave Conference, EuMC 2020
Y2 - 12 January 2021 through 14 January 2021
ER -