Coaxial transmission line including electrically thin resistive layer and associated methods
AssigneeKeysight Technologies, Inc.
InventorsGregory S. Lee, Lewis R. Dove
Life of this patent
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Abstract
A coaxial transmission line, e.g. a coaxial cable, includes an inner electrical conductor, an outer electrical conductor, a dielectric region between the inner electrical conductor and the outer electrical conductor, and an electrically thin resistive layer within the dielectric region and concentric with the inner electrical conductor and the outer electrical conductor. The electrically thin resistive layer is a resistive layer configured to be transparent to a substantially transverse-electromagnetic (TEM) mode of transmission, while absorbing higher order modes of transmission.
Claims37
A signal transmission line comprising:
- a first electrical conductor;
- a second electrical conductor;
- a dielectric region between the first electrical conductor and the second electrical conductor;
- and
- an electrically thin resistive layer disposed within the dielectric region and disposed between the first electrical conductor and the second electrical conductor, the electrically thin resistive layer being configured to be substantially transparent to a substantially transverse-electromagnetic (TEM) mode of transmission while substantially completely attenuating higher order modes of transmission.
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A coaxial transmission line comprising:
- an inner electrical conductor;
- an outer electrical conductor;
- a dielectric region between the inner electrical conductor and the outer electrical conductor;
- and
- an electrically thin resistive layer, within the dielectric region and concentric with the inner electrical conductor and the outer electrical conductor, and configured to be transparent to a substantially transverse-electromagnetic (TEM) mode of transmission while substantially completely attenuating higher order modes of transmission.
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A signal transmission line comprising:
- an inner electrical conductor;
- an outer electrical conductor;
- a dielectric region between the inner electrical conductor and the outer electrical conductor, wherein the inner electrical conductor, outer electrical conductor and dielectric region define a length of signal transmission line;
- an electrically thin resistive layer disposed within the dielectric region between the inner electrical conductor and the outer electrical conductor, and substantially concentric with the inner and outer conductors, the electrically thin resistive layer being configured to be substantially transparent to a substantially transverse-electromagnetic (TEM) mode of transmission while substantially attenuating higher order modes of transmission;
- and
- a single coaxial connector disposed at an end of the signal transmission line, wherein the electrically thin resistive layer extends within an entire length of the signal transmission line and within the coaxial connector.
Dependencies are inferred from the claim text.