Abstract
Terahertz (THz) sources using resonant tunneling diodes (RTDs) are described in this chapter. Room-temperature fundamental oscillation up to 1.98 THz has been obtained by reducing the electron delay time in RTDs and conduction loss in antennas. Output power of 0.7 mW was obtained at 1 THz by a large-scale array. For spectral and polarization properties, electrical frequency tuning with the integration of varactor diode, spectral narrowing by the phase-locked loop, and radiation of circular polarized and vortex waves are briefly introduced. Applications of RTDs to wireless communication and radar system using direct intensity modulation are also described.
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Asada, M., Suzuki, S. (2022). Resonant Tunneling Diode. In: Kürner, T., Mittleman, D.M., Nagatsuma, T. (eds) THz Communications. Springer Series in Optical Sciences, vol 234. Springer, Cham. https://doi.org/10.1007/978-3-030-73738-2_24
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DOI: https://doi.org/10.1007/978-3-030-73738-2_24
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