17.9 A 105Gb/s 300GHz CMOS transmitter

Takano, Kyoya; Amakawa, Shuhei; Katayama, Kosuke; Hara, Shinsuke; Dong, Ruibing; Kasamatsu, Akifumi; Hosako, Iwao; Mizuno, Kôichi; Takahashi, Koichi; Yoshida, Takeshi; Fujishima, Minoru

doi:10.1109/isscc.2017.7870384

Cited by 110 publications

(35 citation statements)

References 5 publications

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“…Such results states that the industry has been capable of keeping up with the documents reported by the International Roadmap for Semiconductors [57]. CMOS transmitters have actually achieved up to 105 Gbps data rate using a 40-nm CMOS process at 300 GHz [58].…”

Section: A Solid-state Electronicsmentioning

confidence: 75%

Terahertz Band: The Last Piece of RF Spectrum Puzzle for Communication Systems

Elayan

Amin

Shihada

et al. 2020

IEEE Open J. Commun. Soc.

408

219

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Ultra-high bandwidth, negligible latency and seamless communication for devices and applications are envisioned as major milestones that will revolutionize the way by which societies create, distribute and consume information. The remarkable expansion of wireless data traffic that we are witnessing recently has advocated the investigation of suitable regimes in the radio spectrum to satisfy users' escalating requirements and allow the development and exploitation of both massive capacity and massive connectivity of heterogeneous infrastructures. To this end, the Terahertz (THz) frequency band (0.1-10 THz) has received noticeable attention in the research community as an ideal choice for scenarios involving high-speed transmission. Particularly, with the evolution of technologies and devices, advancements in THz communication is bridging the gap between the millimeter wave (mmW) and optical frequency ranges. Moreover, the IEEE 802.15 suite of standards has been issued to shape regulatory frameworks that will enable innovation and provide a complete solution that crosses between wired and wireless boundaries at 100 Gbps. Nonetheless, despite the expediting progress witnessed in THz wireless research, the THz band is still considered one of the least probed frequency bands. As such, in this work, we present an up-to-date review paper to analyze the fundamental elements and mechanisms associated with the THz system architecture. THz generation methods are first addressed by highlighting the recent progress in the electronics, photonics as well as plasmonics technology. To complement the devices, we introduce the recent channel models available for indoor, outdoor as well as nanoscale propagation at THz band frequencies. A comprehensive comparison is then presented between the THz wireless communication and its other contenders by treating in depth the limitations associated with each communication technology. In addition, several applications of THz wireless communication are discussed taking into account the various length scales at which such applications occur. Further, as standardization is a fundamental aspect in regulating wireless communication systems, we highlight the milestones achieved regarding THz standardization activities. Finally, a future outlook is provided by presenting and envisaging several potential use cases and attempts to guide the deployment of the THz frequency band and mitigate the challenges related to high frequency transmission. ). Fig. 1. Wireless Roadmap Outlook up to the year 2035.

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Section: A Solid-state Electronicsmentioning

confidence: 75%

Terahertz Band: The Last Piece of RF Spectrum Puzzle for Communication Systems

Elayan

Amin

Shihada

et al. 2020

IEEE Open J. Commun. Soc.

408

219

View full text Add to dashboard Cite

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“…A 300 GHz 32-QAM and 128-QAM transmitter with 105-Gbps data rate is demonstrated in a 40 nm CMOS process [37]. As there is no PA available, an array of eight square mixers (i.e., mixing through the second-order nonlinearity) is power combined at the output stage.…”

Section: Thz Transceiversmentioning

confidence: 99%

Terahertz Sources, Detectors, and Transceivers in Silicon Technologies

Li¹,

Cao²,

Tao³

et al. 2020

Electromagnetic Materials and Devices

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With active devices lingering on the brink of activity and every passive device and interconnection on chip acting as potential radiator, a paradigm shift from "top-down" to "bottom-up" approach in silicon terahertz (THz) circuit design is clearly evident as we witness orders-of-magnitude improvements of silicon THz circuits in terms of output power, phase noise, and sensitivity since their inception around 2010. That is, the once clear boundary between devices, circuits, and function blocks is getting blurrier as we push the devices toward their limits. And when all else fails to meet the system requirements, which is often the case, a logical step forward is to scale these THz circuits to arrays. This makes a lot of sense in the terahertz region considering the relatively efficient on-chip THz antennas and the reduced size of arrays with half-wavelength pitch. This chapter begins with the derivation of conditions for maximizing power gain of active devices. Discussions of circuit topologies for THz sources, detectors, and transceivers with emphasis on their efficacy and scalability ensue, and this chapter concludes with a brief survey of interface options for channeling THz energy out of the chip.

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“…Even in CMOS processes, nonlinear passive devices with f T close to 1 THz can be realized [78,79]. Impressively, a 16 Gbps QPSK transceiver link at 240 GHz [63,64], a 105 Gbps QAM transmitter front-end [60], and a 30-Gbps QPSK transmitter [61] have all been demonstrated using passive mixers and multipliers using a 65 nm CMOS process. However, their system-level energy efficiency and practical long-range operation with full system integration including baseband circuits has not yet been investigated.…”

Section: Terahertz Devicesmentioning

confidence: 99%

A Perspective on Terahertz Next-Generation Wireless Communications

et al. 2019

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In the past year, fifth-generation (5G) wireless technology has seen dramatic growth, spurred on by the continuing demand for faster data communications with lower latency. At the same time, many researchers argue that 5G will be inadequate in a short time, given the explosive growth of machine connectivity, such as the Internet-of-Things (IoT). This has prompted many to question what comes after 5G. The obvious answer is sixth-generation (6G), however, the substance of 6G is still very much undefined, leaving much to the imagination in terms of real-world implementation. What is clear, however, is that the next generation will likely involve the use of terahertz frequency (0.1–10 THz) electromagnetic waves. Here, we review recent research in terahertz wireless communications and technology, focusing on three broad topic classes: the terahertz channel, terahertz devices, and space-based terahertz system considerations. In all of these, we describe the nature of the research, the specific challenges involved, and current research findings. We conclude by providing a brief perspective on the path forward.

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17.9 A 105Gb/s 300GHz CMOS transmitter

Cited by 110 publications

References 5 publications

Terahertz Band: The Last Piece of RF Spectrum Puzzle for Communication Systems

Terahertz Band: The Last Piece of RF Spectrum Puzzle for Communication Systems

Terahertz Sources, Detectors, and Transceivers in Silicon Technologies

A Perspective on Terahertz Next-Generation Wireless Communications

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