基于28nm CMOS的5G毫米波通信非线性I/Q数字PA设计

David Watté, Yizhe Hu, T. Siriburanon, R. Staszewski
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引用次数: 0

摘要

本文介绍了一种基于TSMC(台湾半导体制造公司)28纳米CMOS的5G通信应用DPA的设计。提出了一种改进的吉尔伯特电池,在紧凑的布局中实现放大和反相功能,提高了效率。为了克服dpa的线性问题,采用了一种非线性尺寸技术。相对位单元的有效宽度需要增加以符合非线性尺寸,从而提供具有可接受的INL(积分非线性)和DNL(微分非线性)结果的线性。模拟的饱和输出功率为11.7 dBm,功率增加效率为13%,器件工作在28ghz载波频率下。
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Design of a Non-Linear Sized I/Q Digital PA for 5G mm-Wave Communications in 28 nm CMOS
This paper presents the design of a DPA for 5G telecommunications applications in TSMC (Taiwan Semiconductor Manufacturing Company) 28 nm CMOS. A modified Gilbert cell is proposed to perform the function of amplification and reversing the phase within a compact layout, improving the efficiency. To overcome the linearity issue of DPAs, a non-linear sizing technique of the PA cells is employed. The effective widths of relative bit cells need to be increased to conform to non-linear sizing thus providing linearity with acceptable INL (Integral Non-Linearity)and DNL (Differential Non-Linearity) results. The simulated saturated output power is 11.7 dBm with power added efficiency at 13 percent with the device working off a carrier frequency of 28 GHz.
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