A 300 GHz CMOS Transmitter With 32-QAM 17.5 Gb/s/ch Capability Over Six Channels

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

doi:10.1109/jssc.2016.2602223

Cited by 111 publications

(30 citation statements)

References 28 publications

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“…Therefore, in order not to degrade the signal, a mixer with two superimposed signals as the input at the final stage of the transmitter was used [14,15]. A frequency doubler circuit, called a square mixer since input signals are squared, is used for this mixer.…”

Section: Ghz Band Transmitter Using Silicon Integrated Circuitmentioning

confidence: 99%

Key Technologies for THz Wireless Link by Silicon CMOS Integrated Circuits

Fujishima

2018

Photonics

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In terahertz-band communication using ultra-high frequencies, compound semiconductors with superior high-frequency performance have been used for research to date. Terahertz communication using the 300 GHz band has nonetheless attracted attention based on the expectation that an unallocated frequency band exceeding 275 GHz can be used for communication in the future. Research into wireless transceivers using BiCMOS integrated circuits with silicon germanium transistors and advanced miniaturized CMOS integrated circuits has increased in this 300 GHz band. In this paper, we will outline the terahertz communication technology using silicon integrated circuits available from mass production, and discuss its applications and future.

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Section: Ghz Band Transmitter Using Silicon Integrated Circuitmentioning

confidence: 99%

Key Technologies for THz Wireless Link by Silicon CMOS Integrated Circuits

Fujishima

2018

Photonics

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“…Electronic devices are prime candidates to make compact and low-power-consumption systems towards expanding such THz technologies to various fields. Recently, THz diodes such as impact ionisation avalanche transit-time diodes 9 , tunnelling transit-time diodes 10 , Gunn diodes 11 , resonant tunnelling diodes (RTDs) 12–14 , Schottky barrier diodes 15–17 and heterostructure barrier varactor diodes 18 , and THz transistors such as heterojunction bipolar transistors 19,20 , high electron mobility transistors 21–23 , and silicon (Si) complementary metal–oxide–semiconductor devices 24–28 have been reported. Various studies have been conducted to enhance the output power of the transmitter (Tx) and the sensitivity of the receiver (Rx) in the THz band.…”

Section: Introductionmentioning

confidence: 99%

Terahertz coherent receiver using a single resonant tunnelling diode

Nishida¹,

Nishigami²,

Diebold³

et al. 2019

Sci Rep

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Towards exploring advanced applications of terahertz (THz) electromagnetic waves, great efforts are being applied to develop a compact and sensitive THz receiver. Here, we propose a simple coherent detection system using a single resonant tunnelling diode (RTD) oscillator through self-oscillating mixing with an RTD oscillator injection-locked by a carrier wave. Coherent detection is successfully demonstrated with an enhancement in the sensitivity of >20 dB compared to that of direct detection. As a proof of concept, we performed THz wireless communications using an RTD coherent receiver and transmitter. We achieved 30-Gbit/s real-time error-free transmission, which is the highest among all electronic systems without error correction to date. Our results show that the proposed system can reduce the size and power consumption of various THz systems including sensing, imaging and ranging, which would enable progress to be made in a wide range of fields in such as material science, medicine, chemistry, biology, physics, astronomy, security, robotics and motor vehicle.

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“…been demonstrated between 100 -300 GHz [38], [39], achieving data-rates up to 120 Gb/s. Led by the demands of the digital IC market, scaling of traditional CMOS transistors has also pushed their operation into the THz region [40], [41], [42]. Although individual device performance cannot match their III-V counterparts, CMOS circuits open new usage scenarios due to their affordability and potential complexity [43].…”

Section: Introductionmentioning

confidence: 99%