A 28GHz CMOS Phase Shifter Supporting 11.2Gb/s in 256QAM with an RMS Gain Error of 0.13dB for 5G Mobile Network

Pang, Jian; Kubozoe, Ryo; Li, Zheng; Kawabuchi, Masaru; Okada, Kei

doi:10.23919/eumc.2018.8541422

Cited by 14 publications

(2 citation statements)

References 5 publications

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“…Such separated design cannot be reconfigured to meet the different requirements of phase resolution and gain-tuning range in various applications. Besides, multi-bit active [29], [30], [31] and passive [32], [33], [34] phase shifters are used to provide phase-shifting operation. The phase resolution is improved by increasing the number of control bits, which suffers from the large power consumption and high insertion loss in active and passive phase shifters, respectively.…”

Section: Introductionmentioning

confidence: 99%

A 23–40-GHz Phased-Array Receiver Using 14-Bit Phase-Gain Manager and Wideband Noise-Canceling LNA

Deng

Han

et al. 2023

IEEE J. Solid-State Circuits

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This article presents a 23-40-GHz phased-array receiver (RX) capable of reconfiguring to achieve fine phase step and high gain range. Such phased-array RX consists of a 14-bit phase-gain manager and a wideband noise-canceling low-noise amplifier (NCLNA). The proposed phase-gain manager includes two 7-bit variable gain amplifiers (VGAs) in radio-frequency (RF) domain, two pairs of mixers, and two variable gain signmap (VGSM) circuits in intermediate-frequency (IF) domain. The proposed phased-array RX can not only provide a maximum 14-bit phase-tuning operation and >35-dB gain variation range but also achieve an improved calibration-free image rejection ratio (IRR) by introducing the dual-mode image rejection operation. Based on the aforementioned structure, a four-element phased-array RX is implemented and fabricated in a 40-nm CMOS technology. The whole circuit size is 2.2 × 1.3 mm, while consuming 52 mW per element. The measured result shows a state-of-the-art minimal noise figure (NF) of 3.8 dB, which supports 3 Gb/s, 64-QAM and 2.4 Gb/s, 256-QAM modulation signal.

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Section: Introductionmentioning

confidence: 99%

A 23–40-GHz Phased-Array Receiver Using 14-Bit Phase-Gain Manager and Wideband Noise-Canceling LNA

Deng

Han

et al. 2023

IEEE J. Solid-State Circuits

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“…Multiple solutions exist for any Ka-band low-error PS. Some analog-controlled vector-sum PSs [1][2] and an analogcontrolled reflection-type phase shifter 3 (RTPS) have been presented. A typical system with analog-controlled PSs must include additional function blocks to control voltage.…”

Section: Introductionmentioning

confidence: 99%

Topology selection of switch‐type phase shifter units for wideband Ka‐band 5‐bit phase shifter with low RMS errors

Tsai

2021

Micro & Optical Tech Letters

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This article discusses different topologies of switch-type phase shifter units and the effects of such units on phase accuracy and loss variation for wideband operation. It is observed that the optimal selection of topology depends on the value of phase shift. This article discusses a Ka-band 5-bit switch-type phase shifter MMIC with T-type high-pass topology, T-type low-pass topology, and high-pass/low-pass switched-path-type topology. This circuit was implemented through a 65-nm CMOS process. This phase shifter has low RMS phase error of 2.4 -6.2 and low RMS amplitude error of 0.48-0.66 dB over the 32-41 GHz.

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A Simultaneous Phase Shifter and Up-Converter for the 28/38/60-GHz Bands in 28-nm CMOS

Río

Liang

Chiang

et al. 2020

2020 IEEE Asia-Pacific Microwave Conference (APMC)

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A 28GHz CMOS Phase Shifter Supporting 11.2Gb/s in 256QAM with an RMS Gain Error of 0.13dB for 5G Mobile Network

Cited by 14 publications

References 5 publications

A 23–40-GHz Phased-Array Receiver Using 14-Bit Phase-Gain Manager and Wideband Noise-Canceling LNA

A 23–40-GHz Phased-Array Receiver Using 14-Bit Phase-Gain Manager and Wideband Noise-Canceling LNA

Topology selection of switch‐type phase shifter units for wideband Ka‐band 5‐bit phase shifter with low RMS errors

A Simultaneous Phase Shifter and Up-Converter for the 28/38/60-GHz Bands in 28-nm CMOS

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