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7 results for «Impedance»
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Impedance and matching
Impedance is written Z = R + jX.
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Coaxial cable: loss and electrical length
A line’s characteristic impedance describes voltage divided by current for a travelling wave.
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Frequency and wavelength
The calculator does not determine bandwidth, gain or a guaranteed feed-point impedance.
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Include the return path
It does not automatically imply good SWR or a particular feed-point impedance.
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Inductors, capacitors and resonance
Ideal series impedance becomes zero there; a real circuit retains its loss resistance.
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Planning a half-wave dipole
A straight installation and an inverted V are not identical either: the angle changes feed-point impedance and radiation behaviour, among other things.
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Quarter wave, radials and counterpoise
Radial count and slope affect feed-point impedance and the field.