220-240-GHz High-Gain Phase Shifter Chain and Power Amplifier for Scalable Large Phased-Arrays

被引:1
|
作者
Najmussadat, Md. [1 ]
Ahamed, Raju [1 ]
Varonen, Mikko [2 ]
Parveg, Dristy [2 ]
Kantanen, Mikko [2 ]
Halonen, Kari A. I. [1 ]
机构
[1] Aalto Univ, Dept Elect & Nanoengn, Espoo 02150, Finland
[2] VTT Tech Res Ctr Finland Ltd, Espoo 02044, Finland
关键词
Phase shifters; Gain; Receivers; Power amplifiers; Noise figure; Transmitters; Radio frequency; Differential coupler; gain tuning; low-noise amplifier; millimeter-wave; MMIC; phased-array; phase shifter; power amplifier; receiver; transmitter; RECEIVER CHIPSET; CMOS; TRANSMITTER; GHZ;
D O I
10.1109/ACCESS.2023.3253764
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper focuses on the design aspects of the key components for a scalable phased-array system over the 200 GHz frequency range. A high-gain phase shifter chain for 220 to 240 GHz frequency range and a high-gain power amplifier (PA) with a high output power are designed in a 0.13-mu m SiGe BiCMOS technology. The phase shifter chain includes a low-noise amplifier (LNA), a vector modulator phase shifter (PS), and a gain-enhancing amplifier. The LNA is a five-stage cascode design. The vector modulator core is realized by two variable gain amplifiers based on the Gilbert cell architecture. A four-stage cascode design is used for the gain-enhancing amplifier. The phase shifter chain shows a measured gain of 18 dB at 230 GHz with a 360? phase tuning range and more than 10 dB of gain control. The chip achieves a minimum measured noise figure of 11.5 dB at 230 GHz and shows a wideband noise characteristic. The complete phase shifter chain chip consumes a dc power of 153 mW and occupies a 1.41 mm2 area. A high -power PA that is critical for a large phased-array system is designed. This paper presents a unique 4-way power combining technique utilizing a differential quadrature coupler. The realized balanced PA occupies an area of 0.67 mm(2) and shows a measured peak gain of 21 dB at 244 GHz. The PA consumes 819 mW of dc power and delivers a maximum saturated output power (P-sat) of 7.1 dBm at 244 GHz and more than 4.3 dBm of P-sat from 230 to 255 GHz.
引用
收藏
页码:23565 / 23577
页数:13
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