The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
pandangan teks lengkap
127
Perkhidmatan radio baharu Generasi Kelima (5G NR) yang bermula pada 2020 di Jepun menggunakan nisbah kuasa puncak-ke-purata (PAPR) yang lebih tinggi daripada isyarat termodulat dengan lebar jalur maksimum sehingga 100MHz dan menyokong berbilang input/berbilang- sistem output (MIMO) walaupun dalam telefon bimbit mudah alih, berbanding telefon bimbit Generasi Ketiga (3G) dan/atau Generasi Keempat (4G). NR 5G memerlukan operasi jalur lebar untuk penguat kuasa (PA) yang digunakan dalam telefon bimbit di bawah keadaan isyarat PAPR yang tinggi. NR 5G juga memerlukan beberapa jalur operasi untuk telefon bimbit. Keperluan ini sering menyebabkan kemerosotan ketara kecekapan PA, akibatnya. Kemerosotan adalah disebabkan oleh jalur lebar dan/atau operasi PAPR tinggi serta kehilangan bahagian hadapan tambahan antara PA dan antena. Oleh itu, penggunaan teknik peningkatan kecekapan adalah amat diperlukan untuk PA telefon bimbit 5G NR. Penjejakan sampul surat (ET) ialah salah satu cara paling berkesan untuk meningkatkan kecekapan PA dalam telefon bimbit. Kertas kerja ini memberikan kemajuan terkini dalam penguat kuasa ET (ETPA) diikuti dengan pengenalan ringkas teknik ET. Pengenalan menerangkan operasi asas untuk modulator ET yang merupakan komponen utama dalam teknik ET dan kemudian memberikan penerangan tentang beberapa jenis modulator ET. Di samping itu, sebagai contoh 5G NR ETPA, keputusan percubaan terkini untuk prototaip 5G ETPA ditunjukkan sambil membandingkan kecekapan keseluruhan modulator ET dan PA dalam mod ET dengan yang dalam mod penjejakan kuasa purata (APT).
Kenji MUKAI
Murata Manufacturing Co., Ltd.
Hiroshi OKABE
Murata Manufacturing Co., Ltd.
Satoshi TANAKA
Murata Manufacturing Co., Ltd.
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Salinan
Kenji MUKAI, Hiroshi OKABE, Satoshi TANAKA, "Recent Progress in Envelope Tracking Power Amplifiers for Mobile Handset Systems" in IEICE TRANSACTIONS on Electronics,
vol. E104-C, no. 10, pp. 516-525, October 2021, doi: 10.1587/transele.2021MMI0005.
Abstract: The Fifth-Generation new radio (5G NR) services that started in 2020 in Japan use a higher peak-to-average power ratio (PAPR) of a modulated signal with a maximum bandwidth of up to 100MHz and support multi-input/multi-output (MIMO) systems even in mobile handsets, compared to the Third-Generation (3G) and/or Fourth-Generation (4G) handsets. The 5G NR requires wideband operation for power amplifiers (PAs) used in handsets under a high PAPR signal condition. The 5G NR also requires a number of operating bands for the handsets. These requirements often cause significand degradation of the PA efficiency, consequently. The degradation is due to wideband and/or high PAPR operation as well as additional front-end loss between a PA and an antenna. Thus, the use of an efficiency enhancement technique is indispensable to 5G NR handset PAs. An envelope tracking (ET) is one of the most effective ways to improve the PA efficiency in the handsets. This paper gives recent progress in ET power amplifiers (ETPAs) followed by a brief introduction of ET techniques. The introduction describes a basic operation for an ET modulator that is a key component in the ET techniques and then gives a description of some kinds of ET modulators. In addition, as an example of a 5G NR ETPA, the latest experimental results for a 5G ETPA prototype are demonstrated while comparing overall efficiency of the ET modulator and PA in the ET mode with that in the average power tracking (APT) mode.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.2021MMI0005/_p
Salinan
@ARTICLE{e104-c_10_516,
author={Kenji MUKAI, Hiroshi OKABE, Satoshi TANAKA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Recent Progress in Envelope Tracking Power Amplifiers for Mobile Handset Systems},
year={2021},
volume={E104-C},
number={10},
pages={516-525},
abstract={The Fifth-Generation new radio (5G NR) services that started in 2020 in Japan use a higher peak-to-average power ratio (PAPR) of a modulated signal with a maximum bandwidth of up to 100MHz and support multi-input/multi-output (MIMO) systems even in mobile handsets, compared to the Third-Generation (3G) and/or Fourth-Generation (4G) handsets. The 5G NR requires wideband operation for power amplifiers (PAs) used in handsets under a high PAPR signal condition. The 5G NR also requires a number of operating bands for the handsets. These requirements often cause significand degradation of the PA efficiency, consequently. The degradation is due to wideband and/or high PAPR operation as well as additional front-end loss between a PA and an antenna. Thus, the use of an efficiency enhancement technique is indispensable to 5G NR handset PAs. An envelope tracking (ET) is one of the most effective ways to improve the PA efficiency in the handsets. This paper gives recent progress in ET power amplifiers (ETPAs) followed by a brief introduction of ET techniques. The introduction describes a basic operation for an ET modulator that is a key component in the ET techniques and then gives a description of some kinds of ET modulators. In addition, as an example of a 5G NR ETPA, the latest experimental results for a 5G ETPA prototype are demonstrated while comparing overall efficiency of the ET modulator and PA in the ET mode with that in the average power tracking (APT) mode.},
keywords={},
doi={10.1587/transele.2021MMI0005},
ISSN={1745-1353},
month={October},}
Salinan
TY - JOUR
TI - Recent Progress in Envelope Tracking Power Amplifiers for Mobile Handset Systems
T2 - IEICE TRANSACTIONS on Electronics
SP - 516
EP - 525
AU - Kenji MUKAI
AU - Hiroshi OKABE
AU - Satoshi TANAKA
PY - 2021
DO - 10.1587/transele.2021MMI0005
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E104-C
IS - 10
JA - IEICE TRANSACTIONS on Electronics
Y1 - October 2021
AB - The Fifth-Generation new radio (5G NR) services that started in 2020 in Japan use a higher peak-to-average power ratio (PAPR) of a modulated signal with a maximum bandwidth of up to 100MHz and support multi-input/multi-output (MIMO) systems even in mobile handsets, compared to the Third-Generation (3G) and/or Fourth-Generation (4G) handsets. The 5G NR requires wideband operation for power amplifiers (PAs) used in handsets under a high PAPR signal condition. The 5G NR also requires a number of operating bands for the handsets. These requirements often cause significand degradation of the PA efficiency, consequently. The degradation is due to wideband and/or high PAPR operation as well as additional front-end loss between a PA and an antenna. Thus, the use of an efficiency enhancement technique is indispensable to 5G NR handset PAs. An envelope tracking (ET) is one of the most effective ways to improve the PA efficiency in the handsets. This paper gives recent progress in ET power amplifiers (ETPAs) followed by a brief introduction of ET techniques. The introduction describes a basic operation for an ET modulator that is a key component in the ET techniques and then gives a description of some kinds of ET modulators. In addition, as an example of a 5G NR ETPA, the latest experimental results for a 5G ETPA prototype are demonstrated while comparing overall efficiency of the ET modulator and PA in the ET mode with that in the average power tracking (APT) mode.
ER -