Name
Title | ||
|---|---|---|
2.1 A 28GHz/37GHz/39GHz multiband linear Doherty power amplifier for 5G massive MIMO applications |
Abstract | ||
|---|---|---|
Millimeter-wave fifth-generation (5G) systems will extensively leverage massive multiple-input multiple-output (MIMO) architectures to improve their link performance. These array systems will employ many power amplifiers (PAs) operating at moderate output power (P
<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">out</sub>
), e.g., 16 PAs each with +7dBm P
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[1]. The PA energy efficiency is of paramount importance in MIMO systems for improved battery life and thermal management. Due to spectrum-efficient modulations with high peak-to-average power ratios, both PA peak efficiency and power back-off (PBO) efficiency are critical. To achieve 5G Gb/s data-rates with complex modulations, envelope tracking PAs require high-speed/high-precision supply modulators, and outphasing PAs need high-speed baseband computation, both of which pose substantial challenges in practice. Although Doherty PAs support high data-rates, existing silicon mm-wave Doherty PAs exhibit very limited PBO efficiency enhancement, mainly due to inefficient Doherty power combiners and imperfect main/auxiliary PA cooperation [2,3]. |
Year | DOI | Venue |
|---|---|---|
2017 | 10.1109/ISSCC.2017.7870246 | 2017 IEEE International Solid-State Circuits Conference (ISSCC) |
Keywords | Field | DocType |
imperfect main-auxiliary PA cooperation,Doherty power combiners,silicon mm-wave Doherty PA,high-speed baseband computation,high-precision supply modulators,high-speed supply modulators,envelope tracking PA,complex modulations,spectrum-efficient modulations,thermal management,battery life,MIMO systems,massive multiple-input multiple-output architectures,millimeter-wave fifth-generation systems,multiband linear Doherty power amplifier,5G massive MIMO applications,current 2.1 A,frequency 28 GHz,frequency 37 GHz,frequency 39 GHz,Si | Baseband,Efficient energy use,Computer science,MIMO,Inductor,Electronic engineering,Modulation,Bandwidth (signal processing),Electrical engineering,Amplifier,Power dividers and directional couplers | Conference |
ISBN | Citations | PageRank |
978-1-5090-3759-9 | 8 | 0.76 |
References | Authors | |
2 | 3 | |