用于LTE NB-IoT和Cat-M1的CMOS极性单电源g类SCPA

ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (ESSCIRC) Pub Date : 2018-09-01 DOI:10.1109/ESSCIRC.2018.8494274

E. Bechthum, Mohieddine El Soussi, J. Dijkhuis, Paul Mateman, Gert-Jan van Schaik, Arjan Breeschoten, Yao-Hong Liu, Christian Bachmann, K. Philips

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引用次数: 7

摘要

提出了一种用于基于lte的蜂窝物联网(CIoT)的数字极性PA。它具有g级的回退效率提高，只使用一个电源。PA由若干并联的开关电容器(SC)单元组成。每个电池可以配置为两种输出功率模式，仅使用单个电源。在807MHz时，峰值输出功率为27.1dBm，效率(PAE)为33.3%。- 6dBps和- 12dBps的效率分别为22.5%和14.4%，与b类相比分别提高了1.3倍和1.7倍。13位分辨率使Cat-M1和Cat-NB1信号的功率控制范围>63dB。在这个范围内，EVM <4.2%。

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A CMOS Polar Single-Supply Class-G SCPA for LTE NB-IoT and Cat-M1

A digital polar PA for LTE-based cellular Internet of Things (CIoT) is presented. It features a class-G back-off efficiency enhancement, using only one single supply. The PA consists of a number of parallel switched-capacitor (SC) cells. Each cell can be configured in two output-power modes, using only a single supply. At 807MHz, the peak output power is 27.1dBm, with an efficiency (PAE) of 33.3%. The efficiency at −6dBps and −12dBps is 22.5% and 14.4% respectively, which is an improvement of 1.3x and 1.7x compared to class-B. The 13-bit resolution enables a power-control range for Cat-M1 and Cat-NB1 signals of >63dB. In that range, the EVM is <4.2%.

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ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (ESSCIRC)

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