A semiconductor device includes a first transmission line and a second transmission line. The semiconductor device further includes a high-k dielectric material between the first transmission line and the second transmission line, wherein the high-k dielectric material surrounds the second transmission line. The semiconductor device further includes a dielectric material directly contacting the high-k dielectric material, wherein the dielectric material has a different dielectric constant from the high-k dielectric material, and the dielectric material is separated from the first transmission line and the second transmission line.

A transmission line design includes a first transmission line configured to transfer at least one first signal. The transmission line design further includes a second transmission line configured to transfer at least one second signal, wherein the second transmission line is spaced from the first transmission line. The transmission line design further includes a high-k dielectric material between the first transmission line and the second transmission line. The transmission line design further includes a dielectric material surrounding the high-k dielectric material, the first transmission line and the second transmission line, wherein the dielectric material is different from the high-k dielectric material.

Electrical cable technology is disclosed. In one example, an electrical cable can include a transmission line conductor, a ground conductor, and a dielectric material. The dielectric material can have at least a portion with a thickness separating the transmission line conductor and the ground conductor that is variable along a length of the electrical cable. Such a non-uniform cable (e.g., a cable having components or features that vary in size and/or geometry along the length of the cable) can provide high IO density with acceptable conductive losses and cross-talk while maintaining a desired impedance.

A differential transmission circuit includes: a dielectric layer for embedding a plurality of first strip conductor pairs arranged side by side in the same layer above a ground conductor layer, each of the plurality of first strip conductor pairs including a first right strip conductor and a first left strip conductor, the dielectric layer being formed from an upper side of the ground conductor layer up to a region above the plurality of first strip conductor pairs, the dielectric layer having a flat upper surface. A region between adjacent two of the plurality of first strip conductor pairs is embedded in the dielectric layer without arranging a conductor in the region.

The present disclosure relates to an oscillator apparatus comprising a differential transmission line forming a closed loop, a plurality of active core components that are electrically connected to the differential transmission line and that are configured to compensate for loss in the differential transmission line, a plurality of tuning elements that are electrically coupled with the differential transmission line, and a processor configured to control each tuning element of the plurality of tuning elements to activate or deactivate such that an effective electrical length of the differential transmission line is changed.

The present disclosure relates to an oscillator apparatus comprising a differential transmission line forming a closed loop, a plurality of active core components that are electrically connected to the differential transmission line and that are configured to compensate for loss in the differential transmission line, a plurality of tuning elements that are electrically coupled with the differential transmission line, and a processor configured to control each tuning element of the plurality of tuning elements to activate or deactivate such that an effective electrical length of the differential transmission line is changed.

An electronic device includes a signal sender that sends a pair of transmission signals of mutually opposite phases to an external device via a pair of transmission paths. The signal sender differentiates each amplitude of the pair of transmission signals.

A high-frequency signal transmission line includes a body including a plurality of first base layers and a second base layer stacked on one another in a stacking direction. The first base layers have a first relative permeability, and the second base layer has a relative permeability lower than the first relative permeability. A first signal line and a second signal line extending along the first signal line are provided in the body. In a cross section perpendicular or substantially perpendicular to a first direction in which the first signal line extends, the second base layer occupies at least a portion of an area between the first signal line and the second signal line. In the cross section perpendicular or substantially perpendicular to the first direction, the plurality of first base layers define a loop enclosing the first signal line, the second signal line and the second base layer.

A high-frequency signal transmission line includes a body including a plurality of first base layers and a second base layer stacked on one another in a stacking direction. The first base layers have a first relative permeability, and the second base layer has a relative permeability lower than the first relative permeability. A first signal line and a second signal line extending along the first signal line are provided in the body. In a cross section perpendicular or substantially perpendicular to a first direction in which the first signal line extends, the second base layer occupies at least a portion of an area between the first signal line and the second signal line. In the cross section perpendicular or substantially perpendicular to the first direction, the plurality of first base layers define a loop enclosing the first signal line, the second signal line and the second base layer.

The present invention discloses a four-mode defected ground structure resonator, comprising a metal dielectric substrate and a defected ground unit which is etched in one surface of the metal dielectric substrate; the shape of the defected ground unit is axially symmetric about a first central axis of the defected ground unit, and also the shape of the defected ground unit is axially symmetric about a second central axis of the defected ground unit; the first defected ground unit is provided with H-shape or quasi H-shape, the second defected ground unit is provided with L-shape, quasi L-shape, U-shape or quasi U-shape. The four-mode defected ground structure resonator of the present invention is provided with four types of resonant modes, and the four types of resonant modes are provided with good tunability.