Negative differential resistance (NDR) frequency conversion with gain
نویسندگان
چکیده
منابع مشابه
Negative differential resistance (NDR) in similar molecules with distinct redox behaviour.
The transport characterization of self-assembled monolayers (SAMs) based on the closed and open-shell forms of a fully conjugated polychlorotrimethylphenyl (PTM) derivative hybridized with the gold substrate reveals that both systems exhibit negative differential resistance (NDR) in their I-V curves which was attributed to similar resonant tunnelling with unoccupied molecular orbitals. This wor...
متن کاملFrequency of negative differential resistance electrochemical oscillators: theory and experiments.
An approximate formula for the frequency of oscillations is theoretically derived for skeleton models for electrochemical systems exhibiting negative differential resistance (NDR) under conditions close to supercritical Hopf bifurcation points. The theoretically predicted omega infinity (k/R)1/2 relationship (where R is the series resistance of the cell and k is the rate constant of the charge ...
متن کاملDesign of Dynamic Frequency Divider using Negative Differential Resistance Circuit
The behavior of two frequency divider circuits using negative differential resistance (NDR) circuit is studied. This NDR circuit is made of three resistors (R) and two bipolar-junction-transistor (BJT) devices. It can show the NDR characteristic in its current-voltage curve by suitably designing the resistances. We discuss a dynamic frequency divider, which is made of a R-BJT-NDR circuit, an in...
متن کاملNorth-HoUand Publishing Company NEGATIVE RESISTANCE AND CONVERSION GAIN IN SIS MIXERS
We report the observation of negative quasiparticle dynamic resistance on the DC I-V curves of superconductor-insulator-superconductor tunnel junctions. This negative resistance appears on the first few photon assisted tunneling steps below 2A/e when our tin-tin oxide-tin tunnel junctions are pumped with a 36 GHz microwave current source. We present a simple analytical model which shows that la...
متن کاملScaling analysis of negative differential thermal resistance.
Negative differential thermal resistance (NDTR) can be generated for any one-dimensional heat flow with a temperature-dependent thermal conductivity. In a system-independent scaling analysis, the general condition for the occurrence of NDTR is found to be an inequality with three scaling exponents: n(1)n(2) < -(1+n(3)), where n(1) ∈ (-∞,+∞) describes a particular way of varying the temperature ...
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ژورنال
عنوان ژورنال: IEEE Transactions on Microwave Theory and Techniques
سال: 1993
ISSN: 0018-9480
DOI: 10.1109/22.234531