input impedance


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input impedance

[′in‚pu̇t im‚pēd·əns]
(electricity)
The impedance across the input terminals of a four-terminal network when the output terminals are short-circuited.
References in periodicals archive ?
A folded dipole radiates a pattern similar to a single dipole, but has an input impedance that can be changed as a function of the size of the conductors.
The extremely high input impedance (10 giga-ohms) minimizes circuit loading, providing for accurate and trusted readings.
It means that the Yagi's antenna has to be relatively wide ranged (this must be valid especially for its radiation pattern) however the higher priority is, that the antennas input impedance has to be constant.
In addition, the PXIe9848H provides software-selectable input impedance, overvoltage protection, and AC/DC coupling.
Interaction of the pulser output impedance and transducer input impedance will cause the variation of the excitation voltage.
Each amplifier can be individually configured to allow the selection of several different input ranges (from [+ or -]50 mV up to [+ or -]10 V), 50-[OMEGA] or 1-M[OMEGA] input impedance and AC or DC coupling.
It affects the input impedance and provides band rejection characteristics from the resonance property.
Such effect can be noticed in the input impedance of the antenna and in the reflection coefficient as well, where the antenna without the slot is shifted up by 600 MHz (Fig.
in1] is the input impedance looked from the right side of the [[theta].
However, the very large input impedance of ARMSA is an obstacle on its applications [10].
In this study, we investigate the effects of the DC bias striplines and the center dipole on the coplanar stripline dipole antenna in terms of the input impedance and radiation characteristics.