A 20-GHz Bandwidth Power Amplifier for Phased Array 5G New Radio Transmitters
Bagger, Reza LU and Sjoland, Henrik LU
(2020)
In IEEE Solid-State Circuits Letters
3.
p.302-305
- Abstract
A 27-47-GHz differential cascode power amplifier for millimeter-wave 5G new radio applications is presented. The PA is a three-stage design using inductively coupled impedance transformers with 31-dB nominal power gain. A device periphery ratio of 1:2:6 is adopted for predriver, driver, and final stage, respectively. A gain equalization technique was used in the interstage transformers to obtain the required bandwidth with high gain flatness. To enable the use of 2.7-V supply, a cascode topology was employed in all three stages. A small signal gain of 31 dB was achieved with a 3-dB bandwidth of 20 GHz, equivalent to a 54% fractional bandwidth centered at 37 GHz. A saturated output power of 20.6 dBm was measured at 38.5 GHz. With a... (More)
A 27-47-GHz differential cascode power amplifier for millimeter-wave 5G new radio applications is presented. The PA is a three-stage design using inductively coupled impedance transformers with 31-dB nominal power gain. A device periphery ratio of 1:2:6 is adopted for predriver, driver, and final stage, respectively. A gain equalization technique was used in the interstage transformers to obtain the required bandwidth with high gain flatness. To enable the use of 2.7-V supply, a cascode topology was employed in all three stages. A small signal gain of 31 dB was achieved with a 3-dB bandwidth of 20 GHz, equivalent to a 54% fractional bandwidth centered at 37 GHz. A saturated output power of 20.6 dBm was measured at 38.5 GHz. With a 100-MHz 64-QAM OFDM modulated signal at 37 GHz and at EVM =-25 dB, an output power of 11.6 dBm and an ACLR1 of-32/-30.8 dBc were obtained. An SiGe HBT BiCMOS process with f_{\mathrm{ MAX}} = 330 GHz was used for fabrication. The PA has an active area of 0.28 mm2 and is measured to a best in class FOM of 94.7 dB.
(Less)
- author
- Bagger, Reza
LU
and Sjoland, Henrik
LU
- organization
- publishing date
- 2020
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- 5G, millimeter-wave, new radio, power amplifiers, wideband
- in
- IEEE Solid-State Circuits Letters
- volume
- 3
- article number
- 9163324
- pages
- 4 pages
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- scopus:85089455821
- ISSN
- 2573-9603
- DOI
- 10.1109/LSSC.2020.3015670
- language
- English
- LU publication?
- yes
- id
- a9b7c82f-5671-46be-96ec-67a7b13c8bcd
- date added to LUP
- 2021-01-08 14:54:23
- date last changed
- 2024-03-05 18:21:35
@article{a9b7c82f-5671-46be-96ec-67a7b13c8bcd,
abstract = {{<p>A 27-47-GHz differential cascode power amplifier for millimeter-wave 5G new radio applications is presented. The PA is a three-stage design using inductively coupled impedance transformers with 31-dB nominal power gain. A device periphery ratio of 1:2:6 is adopted for predriver, driver, and final stage, respectively. A gain equalization technique was used in the interstage transformers to obtain the required bandwidth with high gain flatness. To enable the use of 2.7-V supply, a cascode topology was employed in all three stages. A small signal gain of 31 dB was achieved with a 3-dB bandwidth of 20 GHz, equivalent to a 54% fractional bandwidth centered at 37 GHz. A saturated output power of 20.6 dBm was measured at 38.5 GHz. With a 100-MHz 64-QAM OFDM modulated signal at 37 GHz and at EVM =-25 dB, an output power of 11.6 dBm and an ACLR1 of-32/-30.8 dBc were obtained. An SiGe HBT BiCMOS process with f_{\mathrm{ MAX}} = 330 GHz was used for fabrication. The PA has an active area of 0.28 mm2 and is measured to a best in class FOM of 94.7 dB.</p>}},
author = {{Bagger, Reza and Sjoland, Henrik}},
issn = {{2573-9603}},
keywords = {{5G; millimeter-wave; new radio; power amplifiers; wideband}},
language = {{eng}},
pages = {{302--305}},
publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
series = {{IEEE Solid-State Circuits Letters}},
title = {{A 20-GHz Bandwidth Power Amplifier for Phased Array 5G New Radio Transmitters}},
url = {{http://dx.doi.org/10.1109/LSSC.2020.3015670}},
doi = {{10.1109/LSSC.2020.3015670}},
volume = {{3}},
year = {{2020}},
}