Wide frequency‐tunable resonant tunnelling diode terahertz oscillators using varactor diodes | Zendy

Kitagawa S. | Zendy; Suzuki S. | Zendy; Asada M. | Zendy

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Wide frequency‐tunable resonant tunnelling diode terahertz oscillators using varactor diodes

Author(s) -

Kitagawa S.,

Suzuki S.,

Asada M.

Publication year - 2016

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

ISSN - 1350-911X

DOI - 10.1049/el.2015.3921

Subject(s) - varicap , voltage controlled oscillator , terahertz radiation , resonant tunneling diode , optoelectronics , quantum tunnelling , diode , capacitance , materials science , voltage , electrical engineering , engineering , optics , physics , electrode , laser , quantum well , quantum mechanics

A resonant tunnelling diode terahertz voltage‐controlled oscillator integrated with a varactor diode (RTD VCO) for a wide tuning range was proposed and fabricated. In single RTD VCO, a tuning range of 120 GHz of the centre frequency of 640 GHz was achieved by a good combination of the RTD and varactor capacitances. A multi‐element array of RTD VCOs was fabricated to increase the tuning range. A very wide frequency tuning of 320 GHz (580–900 GHz) was achieved with a four‐element RTD VCO array.

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