Current saturation in submillimeter-wave varactors

Kolberg, E.; Tolmunen, Timo J.; Frerking, M. A.; East, J.R.

doi:10.1109/22.137387

Cited by 107 publications

(55 citation statements)

References 8 publications

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“…The measured results show that this tripler has the ability to drive the mixer as a local oscillator source, which is important in the sub-millimeter receiver system. Our future work will be mainly focused on the model optimization [19,20] and attempt to design wide band high-efficiency terahertz multiplier.…”

Section: Resultsmentioning

confidence: 99%

Design of a 225 GHZ High Output Power Tripler Based on Unbalanced Structure

Jin¹,

Zhang²,

Yao³

et al. 2015

PIER C

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Abstract-We report the results of a high-output power unbalanced tripler at 225 GHz, in which a pair of discrete Schottky varactor chips in parallel is adopted. Considering the present situation of domestic processing technology, the advantage of unbalanced structure is that it could provide bias to the diodes without a on-chip capacitor, which is essential in the balanced tripler scheme. The whole circuits are built on a 50 µm-thick quartz substrate, and the novel field-circuit method is applied to the design process that enables us to calculate the impact of the parastics. The measured results indicate that the output power is more than 7 dBm in 215∼228 GHz, and the output power is 12.3 dBm at 224 GHz when driven with 23.8 dBm of input power at room temperature. In general, this tripler has important practical value.

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Section: Resultsmentioning

confidence: 99%

Design of a 225 GHZ High Output Power Tripler Based on Unbalanced Structure

Jin¹,

Zhang²,

Yao³

et al. 2015

PIER C

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show abstract

“…The second issue is that of the diode model. At 300 GHz, a number of new effects are observed such as current saturation and electron inertia [22], and these will have to accounted for by using a more complex diode model. Measurements of the diode will have to be carried out in both small-and large-signal regimes so that a good diode model can be extracted.…”

Section: Discussionmentioning

confidence: 99%

Simulation and measurement of quasi-optical multipliers

Cryan

Helbing²,

Alimenti

et al. 2001

IEEE Trans. Microwave Theory Techn.

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“…However, stacking is limited by the physical size of the reduced-height waveguide where the chip is mounted. Velocity saturation was another factor in choosing the epitaxial layer doping [8].…”

Section: Design Methodologymentioning

confidence: 99%