S波段6位高性能数字移相器

doi:10.16257/j.cnki.1681-1070.2022.1211

电子与封装 ›› 2022, Vol. 22 ›› Issue (12): 120305 . doi: 10.16257/j.cnki.1681-1070.2022.1211

S波段6位高性能数字移相器

张飞;曹智慧;叶坤;于天新;汤正波

中科芯集成电路有限公司，江苏无锡 214072

收稿日期:2022-05-23 发布日期:2022-08-16
作者简介:张飞（1987—），男，江苏南京人，硕士，工程师，研究方向为相控阵天馈系统和微波微系统设计。

High-Performance S-Band 6-bit Digital Phase Shifter

ZHANG Fei, CAO Zhihui,YE Kun, YU Tianxin, TANG Zhengbo

China Key System & Integrated Circuit Co., Ltd., Wuxi 214072, China

Received:2022-05-23 Published:2022-08-16

摘要/Abstract

摘要： 采用0.25 μm砷化镓（GaAs）赝配高电子迁移率晶体管（PHEMT）工艺，设计了一款2.3~3.8 GHz频段的低插入损耗、高精度、小尺寸且集成数字驱动器的6位数字移相器。移相器中的6个移相单元按45°/90°/5.625°/11.25°/180°/22.5°的顺序级联。为了改善移相精度和抑制级联散射，进一步优化了移相单元的电路设计。在2.3~3.8 GHz频率范围内，数字移相器的相位均方根误差最大值为4°，输入输出电压驻波比小于1.4，插入损耗小于4 dB，各状态的幅度波动小于0.8 dB，芯片尺寸为2.44 mm×1.52 mm。

关键词: 数字移相器, 砷化镓, 移相精度, 级联散射抑制

Abstract: A 6-bit digital phase shifter of 2.3-3.8 GHz based on 0.25 μm gallium arsenide (GaAs) pseudomorphic high electron mobility transistor (PHEMT) technology is presented. This phase shifter, integrated with a digital driver, has low insertion loss, high precision and small size. Six phase shifting elements are cascaded by 45°/90°/5.625°/11.25°/180°/22.5°. To improve the phase shifting precision and restrain the series scatter, the circuit designs of phase shifting elements are further refined. Over the design band of 2.3-3.8 GHz, the maximum root mean square phase error is 4°. The input and output voltage standing wave ratio is less than 1.4. The insertion loss is less than 4 dB. The amplitude fluctuation of each state is less than 0.8 dB. The chip size is 2.44 mm×1.52 mm.

Key words: digital phase shifter, GaAs, phase shifting precision, series scatterrestraint

中图分类号:

TN623

张飞;曹智慧;叶坤;于天新;汤正波. S波段6位高性能数字移相器[J]. 电子与封装, 2022, 22(12): 120305 .

ZHANG Fei, CAO Zhihui,YE Kun, YU Tianxin, TANG Zhengbo. High-Performance S-Band 6-bit Digital Phase Shifter[J]. Electronics & Packaging, 2022, 22(12): 120305 .

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中国半导体行业协会封装分会会刊

中国电子学会电子制造与封装技术分会会刊

S波段6位高性能数字移相器

High-Performance S-Band 6-bit Digital Phase Shifter

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