negative-resistance device

negative-resistance device

[′neg·əd·iv ri¦zis·təns di′vīs]
(electronics)
A device having a range of applied voltages within which an increase in this voltage produces a decrease in the current.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
When the transistor is in this state, impedance [Z.sub.r] of the resonant tank permits the two-port network to be represented as a one-port negative-resistance device with output impedance [Z.sub.out].
When the transistor is in a potentially unstable state, an appropriate choice of [Z.sub.T] permits the two-port device to be represented as a one-port negative-resistance device with input impedance [Z.sub.in].
For the negative-resistance device, the ratio [P.sub.DUT]/[P.sub.sensor] is approximately
If the effect of the 12term error correction is accounted for, it is possible to use a VNA to obtain accurate small- and large-signal measurements of negative-resistance devices.
For many negative-resistance devices, the negative resistance and, therefore, the value of [S.sub.11A] are usually nonlinear with terminal voltage (power level), and the design engineer must know the power level at which the device will operate.