The Best of Both Worlds: The Dynamic Load-Modulation Power Amplifier

The Best of Both Worlds: The Dynamic Load-Modulation Power Amplifier

Mobile data traffic is expected to triple between 2018 and 2021 [1]. To meet past and future growth targets in an increasingly limited electromagnetic spectrum, wireless communications systems have evolved at a staggering rate. Current mobile phone standards like 3rd Generation Partnership Project L...

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Veröffentlicht in:IEEE microwave magazine 2020-04, Vol.21 (4), p.76-86
1. Verfasser: Watkins, Gavin T.
Format: Magazinearticle
Sprache:eng
Schlagworte:
Cell phones
Dynamic loads
Frequency modulation
Logic gates
Mobile communication systems
Mobile handsets
OFDM
Orthogonal Frequency Division Multiplexing
Power amplifiers
Radio frequency
Transmitters
Wireless communication systems
Wireless communications
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Zusammenfassung:Mobile data traffic is expected to triple between 2018 and 2021 [1]. To meet past and future growth targets in an increasingly limited electromagnetic spectrum, wireless communications systems have evolved at a staggering rate. Current mobile phone standards like 3rd Generation Partnership Project LTE and Wi-Fi exploit orthogonal frequencydivision multiplexing (OFDM) as a means of achieving the required wireless data rates. OFDM is also a potential candidate for future 5G services. Although highly spectrally efficient, OFDM suffers from a large peak-to-average power ratio (PAPR), where the transmit signal peak envelope power can be 12 dB greater than the average value.
ISSN:1527-3342
1557-9581
DOI:10.1109/MMM.2019.2963608