Articles with "300 ghz" as a keyword



Characterization of a 300-GHz Transmission System for Digital Communications

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Published in 2017 at "Journal of Infrared, Millimeter, and Terahertz Waves"

DOI: 10.1007/s10762-017-0395-9

Abstract: The paper presents the characterization of a 300-GHz transmission system for modern digital communications. The quality of the modulated signal at the output of the system (error vector magnitude, EVM) is measured using a vector… read more here.

Keywords: transmission system; system; characterization 300; ghz transmission ... See more keywords

Study on isolation and radiation behaviours of a 34×34 array-antennas based on SIW and metasurface properties for applications in terahertz band over 125–300 GHz

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Published in 2020 at "Optik"

DOI: 10.1016/j.ijleo.2019.163222

Abstract: Abstract This paper describes the feasibility of conceptual design of a 34×34 array antenna for operation at Terahertz over a frequency range of 125–300 GHz for S11 ≤ -10dB, which corresponds a fractional bandwidth of 82.35%.… read more here.

Keywords: array; radiation; 125 300; 300 ghz ... See more keywords

A superheterodyne 300 GHz wireless link for ultra-fast terahertz communication systems

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Published in 2020 at "International Journal of Microwave and Wireless Technologies"

DOI: 10.1017/s1759078720000495

Abstract: A superheterodyne transmission scheme is adopted and analyzed in a 300 GHz wireless point-to-point link. This was realized using two different intermediate frequency (IF) systems. The first uses fast digital synthesis which provides an IF… read more here.

Keywords: ghz wireless; wireless link; frequency; 300 ghz ... See more keywords

Comments on Neufeld and Kuster, "Systematic Derivation of Safety Limits for Time-varying 5G Radiofrequency Exposure Based on Analytical Models and Thermal Dose".

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Published in 2019 at "Health Physics"

DOI: 10.1097/hp.0000000000001090

Abstract: Dear Editors: NEUFELD AND Kuster (2018) calculate “short temperature spikes in the skin” of people exposed to “bursts of a fewmilliseconds to seconds” of radiofrequency (RF) energy from wireless devices such as fifth generation (5G)… read more here.

Keywords: radiofrequency; time; 300 ghz; energy ... See more keywords

Demonstration of 120 Gbit/s 64-QAM Wireless Link Operating in the 300 GHz Band

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Published in 2024 at "IEEE Access"

DOI: 10.1109/access.2024.3368884

Abstract: This paper demonstrates a 120 Gbit/s 64-Quadrature Amplitude Modulation (64-QAM) transmission link using all-electronics sub-harmonic mixers for the transmitter and the receiver operating in the 300 GHz band. The wireless signal is propagated through a… read more here.

Keywords: gbit; link; 120 gbit; operating 300 ... See more keywords

High Output Power and Efficiency 300-GHz Band InP-Based MOS-HEMT Power Amplifiers With Composite-Channel and Double-Side Doping

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Published in 2024 at "IEEE Journal of the Electron Devices Society"

DOI: 10.1109/jeds.2024.3483305

Abstract: This paper demonstrated high-output-power and high-efficiency power amplifier (PA) monolithic microwave-integrated circuit (MMIC) at 300-GHz band (252–296 GHz) with the use of InPbased metal–oxide–semiconductor high-electron-mobility transistors (HEMTs) with composite-channel (CC) and double-side-doping (DD) techniques. The… read more here.

Keywords: high output; output power; 300 ghz; output ... See more keywords
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Low-Cost Packaging of 300 GHz Integrated Circuits With an On-Chip Patch Antenna

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Published in 2019 at "IEEE Antennas and Wireless Propagation Letters"

DOI: 10.1109/lawp.2019.2943371

Abstract: Placing a 300 GHz on-chip patch antenna in a low-cost quad-flat no-lead (QFN) package using materials based on silica microparticles dispersed in an epoxy matrix can improve the antenna performance. Full-wave simulations of a rectangular… read more here.

Keywords: 300 ghz; low cost; chip; patch antenna ... See more keywords
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High-Power 300 GHz Solid-State Source Chain Based on GaN Doublers

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Published in 2021 at "IEEE Electron Device Letters"

DOI: 10.1109/led.2021.3110781

Abstract: A high-power 300 GHz solid-state source chain based on GaN doublers is proposed. The two doublers working at 150 GHz and 300 GHz are designed and fabricated. The pulsed output power exceeds 1000 mW at… read more here.

Keywords: high power; power; power 300; 300 ghz ... See more keywords

300-GHz Balanced Varactor Doubler in Silicon CMOS for Ultrahigh-Speed Wireless Communications

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Published in 2018 at "IEEE Microwave and Wireless Components Letters"

DOI: 10.1109/lmwc.2018.2811249

Abstract: This letter presents a 300-GHz varactor doubler suitable for ultrahigh-speed wireless communications. The doubler employs balance configuration to enhance the second harmonic efficiently. The proposed varactor doubler realized in TSMC 40-nm CMOS can be integrated… read more here.

Keywords: 300 ghz; doubler; varactor doubler; ultrahigh speed ... See more keywords

Dual Carrier Modulation 300 GHz DSM Terahertz Wave Signals Transmitted via Hollow-Core Fiber

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Published in 2024 at "IEEE Photonics Technology Letters"

DOI: 10.1109/lpt.2024.3473913

Abstract: We experimentally demonstrated the transmission of 300 GHz Delta-sigma Modulation (DSM) signals over Hollow-core fibers (HCF) and 2 m wireless links. By using dual-carrier modulation, we effectively improve the signal-to-noise ratio of the generated terahertz… read more here.

Keywords: dual carrier; 300 ghz; hollow core; modulation ... See more keywords
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A 300-GHz Transmitter Front End With -4.1-dBm Peak Output Power for Sub-THz Communication Using 130-nm SiGe BiCMOS Technology

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Published in 2021 at "IEEE Transactions on Microwave Theory and Techniques"

DOI: 10.1109/tmtt.2021.3103574

Abstract: This article presents a compact 300-GHz transmitter front end manufactured in a 130-nm SiGe BiCMOS process. The transmitter consists of a 240-GHz amplifier multiplier chain (AMC) and a modified 300-GHz Gilbert mixer. Limited by the… read more here.

Keywords: transmitter; power; 300 ghz; output power ... See more keywords