Journal
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
Volume 12, Issue 3, Pages 226-244Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TTHZ.2022.3142965
Keywords
Wireless communication; III-V semiconductor materials; Oscillators; Semiconductor diodes; Indium phosphide; Resonant tunneling devices; Gallium arsenide; Electronic oscillator; resonant tunneling diode (RTD); terahertz (THz); terahertz monolithic integrated circuit (TMIC); wireless communications
Funding
- TeraApps (Doctoral Training Network in Terahertz Technologies for Imaging, Radar and Communication Applications) - European Union's Horizon 2020 Research and Innovation Programme under Marie Sklodowska-Curie Innovative Training Network (ITN) [765426]
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This article provides an overview of the application and key performance of resonant tunneling diode (RTD) technology in the field of terahertz wireless communications, and proposes possible directions for future technological development.
Resonant tunneling diode (RTD) technology is emerging as one of the promising semiconductor-based solid-state technologies for terahertz (THz) wireless communications. This article provides a review of the state of the art, with a focus on the THz RTD oscillator, which is the key component of RTD-based THz transmitters and coherent receivers. A brief summary on the device principle of operation, technology, modeling, as well as an overview of oscillator design and implementation approaches for THz emitters, is provided. A new insight to device evaluation and to the reported oscillator performance levels is also given, together with brief remarks on RTD-based THz detectors. Thereafter, an overview of the reported wireless links which utilize an RTD in either transmission or reception, or in both roles, is given. Highlight results include the record single-channel wireless data rate of 56 Gb/s employing an all RTD-based transceiver, which demonstrates the potential of the technology for future short-range communications. The article concludes with a discussion of the current technical challenges and possible strategies for future progress.
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