A 24-to-32GHz series-Doherty PA with two-step impedance inverting power combiner achieving 20.4dBm Psat and 38%/34% PAE at Psat/6dB PBO for 5G applications

Masoud Pashaeifar; Anil K. Kumaran; Mohammadreza Beikmirza; Leo C.N. de Vreede; Morteza S. Alavi

doi:10.1109/A-SSCC53895.2021.9634772

A 24-to-32GHz series-Doherty PA with two-step impedance inverting power combiner achieving 20.4dBm Psat and 38%/34% PAE at Psat/6dB PBO for 5G applications

Masoud Pashaeifar, Anil K. Kumaran, Mohammadreza Beikmirza, Leo C.N. de Vreede, Morteza S. Alavi

Electronics

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

5 Citations (Scopus)

Abstract

Line-of-sight millimeter-wave (mm-wave) 5G phased array systems are key solutions to overcome the free-space path loss while providing a multi-Gbit/s data throughput. To realize these systems, nanoscale CMOS technologies should be exploited to enable high integration, compact area, low cost, and high yield. Besides, 5G systems typically employ spectrally efficient complex modulation schemes with high peak-to-average power ratios (PAPRs), which demand the transmitter (TX) power amplifier (PA) to operate in power back-off (PBO), thus degrading its average efficiency. Many techniques such as outphasing [1,2], load-modulated balanced amplifiers (LMBAs) [3–4], and Doherty PAs (DPAs) [5–9] are adopted in mm-wave TXs to enhance efficiency at PBO. Among them, the Doherty is an “RF-in RF-out” PBO efficiency enhancement topology supporting signals with large modulation bandwidth. These mm-wave DPAs are inherently narrowband structures due to employing a lumped-element quarter-wave transmission line (QTL). Thus, the broadband operation is only feasible by increasing the complexity of the Doherty power combiner, compromising with its passive efficiency [7–8]. Also, in these architectures, their optimum PAE at PBO is still narrowband while providing broadband P1dB.

Original language	English
Title of host publication	2021 IEEE Asian Solid-State Circuits Conference (A-SSCC)
Subtitle of host publication	Proceedings
Publisher	IEEE
Pages	1-3
Number of pages	3
ISBN (Electronic)	978-1-6654-4350-0
ISBN (Print)	978-1-6654-4351-7
DOIs	https://doi.org/10.1109/A-SSCC53895.2021.9634772
Publication status	Published - 2021
Event	2021 IEEE Asian Solid-State Circuits Conference (A-SSCC) - Hybrid at Busan, Korea, Republic of Duration: 7 Nov 2021 → 10 Nov 2021

Conference

Conference	2021 IEEE Asian Solid-State Circuits Conference (A-SSCC)
Country/Territory	Korea, Republic of
City	Hybrid at Busan
Period	7/11/21 → 10/11/21

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10.1109/A-SSCC53895.2021.9634772

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Pashaeifar, M., Kumaran, A. K., Beikmirza, M., de Vreede, L. C. N., & Alavi, M. S. (2021). A 24-to-32GHz series-Doherty PA with two-step impedance inverting power combiner achieving 20.4dBm Psat and 38%/34% PAE at Psat/6dB PBO for 5G applications. In 2021 IEEE Asian Solid-State Circuits Conference (A-SSCC): Proceedings (pp. 1-3). Article 9634772 IEEE. https://doi.org/10.1109/A-SSCC53895.2021.9634772

@inproceedings{7b1074655ed944c2a23319ab02404b6e,

title = "A 24-to-32GHz series-Doherty PA with two-step impedance inverting power combiner achieving 20.4dBm Psat and 38%/34% PAE at Psat/6dB PBO for 5G applications",

abstract = "Line-of-sight millimeter-wave (mm-wave) 5G phased array systems are key solutions to overcome the free-space path loss while providing a multi-Gbit/s data throughput. To realize these systems, nanoscale CMOS technologies should be exploited to enable high integration, compact area, low cost, and high yield. Besides, 5G systems typically employ spectrally efficient complex modulation schemes with high peak-to-average power ratios (PAPRs), which demand the transmitter (TX) power amplifier (PA) to operate in power back-off (PBO), thus degrading its average efficiency. Many techniques such as outphasing [1,2], load-modulated balanced amplifiers (LMBAs) [3–4], and Doherty PAs (DPAs) [5–9] are adopted in mm-wave TXs to enhance efficiency at PBO. Among them, the Doherty is an “RF-in RF-out” PBO efficiency enhancement topology supporting signals with large modulation bandwidth. These mm-wave DPAs are inherently narrowband structures due to employing a lumped-element quarter-wave transmission line (QTL). Thus, the broadband operation is only feasible by increasing the complexity of the Doherty power combiner, compromising with its passive efficiency [7–8]. Also, in these architectures, their optimum PAE at PBO is still narrowband while providing broadband P1dB.",

author = "Masoud Pashaeifar and Kumaran, {Anil K.} and Mohammadreza Beikmirza and {de Vreede}, {Leo C.N.} and Alavi, {Morteza S.}",

year = "2021",

doi = "10.1109/A-SSCC53895.2021.9634772",

language = "English",

isbn = "978-1-6654-4351-7",

pages = "1--3",

booktitle = "2021 IEEE Asian Solid-State Circuits Conference (A-SSCC)",

publisher = "IEEE",

address = "United States",

note = "2021 IEEE Asian Solid-State Circuits Conference (A-SSCC) ; Conference date: 07-11-2021 Through 10-11-2021",

}

Pashaeifar, M , Kumaran, AK , Beikmirza, M , de Vreede, LCN & Alavi, MS 2021, A 24-to-32GHz series-Doherty PA with two-step impedance inverting power combiner achieving 20.4dBm Psat and 38%/34% PAE at Psat/6dB PBO for 5G applications. in 2021 IEEE Asian Solid-State Circuits Conference (A-SSCC): Proceedings., 9634772, IEEE, pp. 1-3, 2021 IEEE Asian Solid-State Circuits Conference (A-SSCC), Hybrid at Busan, Korea, Republic of, 7/11/21. https://doi.org/10.1109/A-SSCC53895.2021.9634772

A 24-to-32GHz series-Doherty PA with two-step impedance inverting power combiner achieving 20.4dBm Psat and 38%/34% PAE at Psat/6dB PBO for 5G applications. / Pashaeifar, Masoud ; Kumaran, Anil K.; Beikmirza, Mohammadreza et al.
2021 IEEE Asian Solid-State Circuits Conference (A-SSCC): Proceedings. IEEE, 2021. p. 1-3 9634772.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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AU - Kumaran, Anil K.

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AU - de Vreede, Leo C.N.

AU - Alavi, Morteza S.

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AB - Line-of-sight millimeter-wave (mm-wave) 5G phased array systems are key solutions to overcome the free-space path loss while providing a multi-Gbit/s data throughput. To realize these systems, nanoscale CMOS technologies should be exploited to enable high integration, compact area, low cost, and high yield. Besides, 5G systems typically employ spectrally efficient complex modulation schemes with high peak-to-average power ratios (PAPRs), which demand the transmitter (TX) power amplifier (PA) to operate in power back-off (PBO), thus degrading its average efficiency. Many techniques such as outphasing [1,2], load-modulated balanced amplifiers (LMBAs) [3–4], and Doherty PAs (DPAs) [5–9] are adopted in mm-wave TXs to enhance efficiency at PBO. Among them, the Doherty is an “RF-in RF-out” PBO efficiency enhancement topology supporting signals with large modulation bandwidth. These mm-wave DPAs are inherently narrowband structures due to employing a lumped-element quarter-wave transmission line (QTL). Thus, the broadband operation is only feasible by increasing the complexity of the Doherty power combiner, compromising with its passive efficiency [7–8]. Also, in these architectures, their optimum PAE at PBO is still narrowband while providing broadband P1dB.

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A 24-to-32GHz series-Doherty PA with two-step impedance inverting power combiner achieving 20.4dBm Psat and 38%/34% PAE at Psat/6dB PBO for 5G applications

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