具有低衰减和相对相位变化的温度补偿ku波段四波束相控阵接收机

IF 4 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2024-10-23 DOI:10.1109/TCSII.2024.3485476

Shi Chao Jin;Jiaxing Sun;Zhuoheng Xie;Bo Huang;Dunge Liu;Yuqian Yang;Chenyu Mei;Jun Huang;Chenyu Wang;Xiulong Wu;Yu Jian Cheng

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引用次数: 0

摘要

本文提出了一种低衰减、低相位变化的温度补偿ku波段八元四波束相控阵接收机。通过适当调节6位阶跃衰减器中开关mosfet的栅极电压，可以使mosfet的电阻随温度变化保持恒定。有效地减小了环境温度变化引起的衰减和相对相位误差，满足了相控阵系统的要求。为了验证所提出的方法，采用130 nm硅锗（SiGe） BiCMOS工艺设计并制作了一个8元10.7-12.7 GHz相控阵接收机。在10.7-12.7 GHz频段，在−40°C至85°C范围内，相控阵接收机的衰减误差小于0.71 dB，相对相位误差小于2.7°。同时，实测噪声系数（NF）和单通道增益分别为1.1 ~ 2.5 dB和21.2 ~ 27.8 dB。

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A Temperature-Compensated Ku-Band Four-Beam Phased-Array Receiver With Low Attenuation and Relative Phase Variations

This brief proposes a temperature-compensated Ku-band eight-element four-beam phased-array receiver with low attenuation and relative phase variations. By properly adjusting the gate voltage of the switch MOSFETs in the 6-bit step attenuator, the resistance of MOSFETs can remain constant with temperature variation. Furthermore, the attenuation and relative phase errors caused by ambient temperature variations can be effectively decreased to meet the requirements of phased-array systems. To verify the proposed method, an eight-element 10.7–12.7 GHz phased-array receiver is designed and fabricated using a 130-nm silicon-germanium (SiGe) BiCMOS process. With the help of minimized attenuation and phase variations, the phased-array receiver exhibits a root-mean-square (RMS) attenuation error less than 0.71 dB and a RMS relative phase error less than 2.7° from −40°C to 85°C at 10.7-12.7 GHz. Meanwhile, the measured noise figure (NF) and single-channel gain are 1.1-2.5 dB and 21.2-27.8 dB, respectively.

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来源期刊

IEEE Transactions on Circuits and Systems II: Express Briefs 工程技术-工程：电子与电气

CiteScore

7.90

自引率

20.50%

发文量

883

审稿时长

3.0 months

期刊介绍： TCAS II publishes brief papers in the field specified by the theory, analysis, design, and practical implementations of circuits, and the application of circuit techniques to systems and to signal processing. Included is the whole spectrum from basic scientific theory to industrial applications. The field of interest covered includes: Circuits: Analog, Digital and Mixed Signal Circuits and Systems Nonlinear Circuits and Systems, Integrated Sensors, MEMS and Systems on Chip, Nanoscale Circuits and Systems, Optoelectronic Circuits and Systems, Power Electronics and Systems Software for Analog-and-Logic Circuits and Systems Control aspects of Circuits and Systems.