A Wideband CMOS Frequency Quadrupler With Transformer-Based Tail Feedback Loop

Yu, Yiming; Tang, Pan; Yi, Kai; Zhao, Chenxi; Liu, Huihua; Wu, Yunqiu; Wang, Yin

doi:10.1109/tcsii.2020.3031877

Cited by 15 publications

(2 citation statements)

References 15 publications

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“…In the past, many ×4 ILFM's have been implemented. [15], [16], [18]. One ×4 ILFM consists of a cross-coupled injection-locked oscillator [19], [20].…”

Section: Iii-b Measurement Of the Multiply-by-4 Ilfmmentioning

confidence: 99%

CMOS Injection-Locked Frequency Quadrupler/Quintupler

et al. 2022

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This paper designs a C-band single-stage LC-tank injection locked frequency quintupler (ILFQ) fabricated in 0.18 μm CMOS process. The differential input/output ILFQ circuit is made of a firstharmonic injection-locked frequency oscillator (ILO) and a frequency quadrupler/quintupler. The freerunning oscillation frequency of the ILFQ is around 7.6 GHz. At the dc power consumption of 9.9 mW and at the incident power of 0 dBm, the input locking range is from the incident frequency 1.456 GHz to 1.644 GHz to provide an output signal source from the frequency 7.28 GHz to 8.22 GHz. The whole chip occupies a die area of 1.114×1.060 mm 2 . The designed circuit is also used as a new X-band single-stage LC-tank injection locked frequency quadrupler, which shows measured ×4 output locking range from 7.82 GHz to 8.6 GHz.INDEX TERMS frequency quadrupler, injection-locked frequency quintupler, LC-tank, locking range, 0.18 μm CMOS.

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“…In the past, many ×4 ILFM's have been implemented. [15], [16], [18]. One ×4 ILFM consists of a cross-coupled injection-locked oscillator [19], [20].…”

Section: Iii-b Measurement Of the Multiply-by-4 Ilfmmentioning

confidence: 99%

CMOS Injection-Locked Frequency Quadrupler/Quintupler

et al. 2022

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“…Frequency multipliers exploiting the non-linearity of transistors are implemented after RF power amplifiers to generate power in a frequency range where power amplifiers are not available [59][60][61]. The THz power is then radiated out by the antennas that are typically integrated on-chip.…”

Section: Design Considerations Of Thz Integrated Phased Arraysmentioning

confidence: 99%

A review on applications of integrated terahertz systems

Venkatesh

Saeidi

2021

China Commun.

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A review on Terahertz end-to-end systems with an emphasis on integrated approaches is presented. Four major catalogs of THz integrated systems, including THz communication systems, THz imaging systems, THz radars, and THz spectroscopy systems, are reviewed in this article. The performance of integrated systems is compared with non-integrated solutions, followed by a discussion on the trend in future research avenues and applications.

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Injection-Locked Frequency Sixtuplers in 90 nm CMOS by Using the Push-Push Doubler

Cheng,

Shen,

Hong

et al. 2023

IEEE Access

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This paper designs two single-stage LC-tank injection-locked frequency sixtuplers (ILFSs) fabricated in a 90 nm CMOS process and it describes the circuit design, operation principle, and measurement results of the ILFSs. The ILFS circuit with a differential input and single-phase output is made of a firstharmonic injection-locked oscillator (ILO), a frequency tripler, and a push-push doubler. The first ILFS uses an octagonal inductor. For a supply voltage of 0.4 V, the free-running frequency is around 41.52 GHz, DC power consumption is 9.03 mW at the incident power of 0 dBm, and the output locking range at 0 dBm input power is 10.21 %. The second ILFS uses an 8-shaped inductor for low electromagnetic (EM) noise generation. The free-running frequency is around 37.2 GHz, DC power consumption is 7.72 mW at the incident power of 0 dBm, and the output locking range at 0 dBm input power is 17.4 %. The two chips have the same area, 0.7 x 0.7 mm 2 . This paper also provides a further analysis and comparison of the RF performance of on-chip inductors designed. Simulation shows the substrate noise coupling and distance noise coupling between victim and aggressor, the 8-shaped inductor exhibits a significant reduction in coupling. By the measurement results, it is evident that the performance of the 8-shaped inductor ILFS is superior to that of the octagonal inductor ILFS.INDEX TERMS 5G, millimeter-wave (mm-wave), low power, LC-tank, gm-boosted, push-push frequency doubler, frequency tripler, 8-shaped inductor, injection-locked frequency sixtupler, locking range, 90nm CMOS, magnetic field coupling noise interference.

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A Wideband CMOS Frequency Quadrupler With Transformer-Based Tail Feedback Loop

Cited by 15 publications

References 15 publications

CMOS Injection-Locked Frequency Quadrupler/Quintupler

CMOS Injection-Locked Frequency Quadrupler/Quintupler

A review on applications of integrated terahertz systems

Injection-Locked Frequency Sixtuplers in 90 nm CMOS by Using the Push-Push Doubler

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