A Millimeter-Wave Variable-Gain Power Amplifier With P₁ dB Improvement Technique in 65-nm CMOS

IF 2.9 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Microwave and Wireless Components Letters Pub Date : 2022-12-01 DOI:10.1109/LMWC.2022.3177656

Xiongyao Luo, W. Feng, Haoshen Zhu, Liang Wu, W. Che, Q. Xue

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引用次数: 0

Abstract

A millimeter-wave (MMW) variable-gain power amplifier (VGPA) with

$P_{\mathrm {1\,dB}}$

improvement technique is proposed. The proposed VGPA consists of a postdistortion power amplifier (PDPA) and a variable-gain amplifier (VGA), for realizing high output power 1-dB compression point (

$P_{\mathrm {1\,dB}}$

) and variable gain, respectively. To improve the

$P_{\mathrm {1\,dB}}$

performances, a postdistortion technique with peaking-mode gain response shaping is proposed. This new approach has less amplitude-to-amplitude (AM–AM) distortion. Fabricated in 65-nm CMOS process, the proposed VGPA achieves 16-dBm output

$P_{\mathrm {1\,dB}}$

with 29.5% power added efficiency (PAE) and 16.7-dBm saturated output power (

$P_{\mathrm {sat}}$

) with 34% peak PAE. The maximum gain reaches 33.1 dB with 3-dB bandwidth from 23.1 to 29 GHz and 31.1-dB dynamic range of gain adjustment.

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65纳米CMOS中P₁dB改进技术的毫米波变增益功率放大器

提出了一种采用$P_{\math {1\，dB}}$改进技术的毫米波变增益功率放大器(VGPA)。该VGPA由一个后失真功率放大器(PDPA)和一个可变增益放大器(VGA)组成，分别实现高输出功率1-dB压缩点($P_{\ mathm {1\，dB}}$)和可变增益。为了提高$P_{\ mathm {1\，dB}}$的性能，提出了一种带峰模增益响应整形的后失真技术。这种新方法具有较小的幅值对幅值(AM-AM)失真。该VGPA采用65纳米CMOS工艺制造，输出功率为16 dbm $P_{\mathrm {1\，dB}}$，功率附加效率(PAE)为29.5%，饱和输出功率为16.7 dbm $P_{\mathrm {sat}}$，峰值PAE为34%。最大增益达到33.1 dB, 3db带宽为23.1 ~ 29 GHz，增益调节动态范围为31.1 dB。

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来源期刊

IEEE Microwave and Wireless Components Letters 工程技术-工程：电子与电气

自引率

13.30%

发文量

376

审稿时长

3.0 months

期刊介绍： The IEEE Microwave and Wireless Components Letters (MWCL) publishes four-page papers (3 pages of text + up to 1 page of references) that focus on microwave theory, techniques and applications as they relate to components, devices, circuits, biological effects, and systems involving the generation, modulation, demodulation, control, transmission, and detection of microwave signals. This includes scientific, technical, medical and industrial activities. Microwave theory and techniques relates to electromagnetic waves in the frequency range of a few MHz and a THz; other spectral regions and wave types are included within the scope of the MWCL whenever basic microwave theory and techniques can yield useful results. Generally, this occurs in the theory of wave propagation in structures with dimensions comparable to a wavelength, and in the related techniques for analysis and design.