Sub-THz high gain wide-band low noise amplifiers in 90nm RF CMOS technology

Akour, Amneh; Khalil, Waleed; Ismail, Mohammed

doi:10.1109/icecs.2010.5724482

Cited by 1 publication

(1 citation statement)

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“…The results presented in this work for the 2.5-2.7 THz chain indicate that this frequency range can easily be covered with the HIFI style versatile and broadband multiplier sources. Given the tremendous progress of high power GaN amplifiers [23], THz HEMT transistors [24], [25] or even CMOS amplifiers below 1 THz [26], it is predictable that the first and then the second stage of the present LO chain will be replaced in the coming years by transistor-based high-power drivers, much like the W-band Gunn oscillator was progressively replaced during the past decade by W-band synthesizers followed by W-band amplifiers. THz Schottky diode-based frequency multipliers will then reveal their full potential, being driven by power levels in the 3-10 mW range, where non-linearities can be better exploited for higher conversion efficiencies.…”

Section: Resultsmentioning

confidence: 99%

Frequency tunable electronic sources working at room temperature in the 1 to 3 THz band

et al. 2012

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Frequency tunable electronic sources working at room temperature in the 1 to 3 THz band," Proc. ABSTRACTCompact, room temperature terahertz sources are much needed in the 1 to 3 THz band for developing multi-pixel heterodyne receivers for astrophysics and planetary science or for building short-range high spatial resolution THz imaging systems able to see through low water content and non metallic materials, smoke or dust for a variety of applications ranging from the inspection of art artifacts to the detection of masked or concealed objects. All solid-sate electronic sources based on a W-band synthesizer followed by a high-power W-band amplifier and a cascade of Schottky diode based THz frequency multipliers are now capable of producing more than 1 mW at 0.9THz, 50 μW at 2 THz and 18 μW at 2.6 THz without the need of any cryogenic system. These sources are frequency agile and have a relative bandwidth of 10 to 15%, limited by the high power W-band amplifiers. The paper will present the latest developments of this technology and its perspective in terms of frequency range, bandwidth and power.

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