The present invention relates to a microstrip-waveguide transition for transmission of electromagnetic wave signals. According to one aspect of the invention, there is provided a microstrip-waveguide transition for transmission of electromagnetic wave signals, comprising: a feeding part for providing an electromagnetic wave signal to be transmitted through the waveguide; and a ground part formed at a predetermined interval from the feeding part, wherein the microstrip and the waveguide are coupled alongside each other along a length direction of the waveguide, and wherein a distance between the feeding part and the ground part in a direction perpendicular to the length direction of the waveguide is greater as it is closer to the waveguide.

Embodiments of the invention include an electromagnetic waveguide and methods of forming electromagnetic waveguides. In an embodiment, the electromagnetic waveguide may include a first semiconductor fin extending up from a substrate and a second semiconductor fin extending up from the substrate. The fins may be bent towards each other so that a centerline of the first semiconductor fin and a centerline of the second semiconductor fin extend from the substrate at a non-orthogonal angle. Accordingly, a cavity may be defined by the first semiconductor fin, the second semiconductor fin, and a top surface of the substrate. Embodiments of the invention may include a metallic layer and a cladding layer lining the surfaces of the cavity. Additional embodiments may include a core formed in the cavity.

A communication system is disclosed. The system can include a first communication unit including a first antenna, a second communication unit including a second antenna and a dielectric waveguide cable, and a rotary joint configured to enable the first unit to rotate with respect to the second unit about an axis of rotation of the system. The dielectric waveguide cable can extend from the second antenna to the rotary joint, where a proximal end of the cable can be coupled to the second antenna and a distal end of the cable can be affixed to the second unit at a location bordering a space defined by the rotary joint. The first and second units can be configured to engage in two-way communication with each other. An axis of the distal end of the cable can be substantially aligned with the axis of rotation of the system.

Described are a dielectric conductor arrangement, a method for producing the conductor arrangement, a level radar and a use of the conductor arrangement. The conductor arrangement has a dielectric conductor core made of a solid. Furthermore, the conductor arrangement has a coating 30 which, at least in sections, surrounds the entire circumference of the conductor core without a gap and which consists of a thin conductive layer.

Aspects of the subject disclosure may include, for example, a cable can include a core, a plurality of strips of cladding disposed on the core, and a coupler that facilitates inducing electromagnetic waves that propagate along the core, where a first dielectric constant of the core exceeds a second dielectric constant of each strip of cladding of the plurality of strips of cladding, and where the electromagnetic waves propagate along the core without requiring an electrical return path. Other embodiments are disclosed.

Aspects of the subject disclosure may include, receiving, by a waveguide system, a communication signal that conveys data; transmitting, via a coupler of the waveguide system, electromagnetic waves, where the electromagnetic waves propagate along a transmission medium without requiring an electrical return path, and where the electromagnetic waves convey the data; and mitigating, by the waveguide system, interference to the electromagnetic waves associated with residual electromagnetic waves propagating along the transmission medium. Other embodiments are disclosed.

Embodiments of the invention include autonomous vehicles and mm-wave systems for communication between components. In an embodiment the vehicle includes an electronic control unit (ECU). The ECU may include a printed circuit board (PCB) and a CPU die packaged on a CPU packaging substrate. In an embodiment, the CPU packaging substrate is electrically coupled to the PCB. The ECU may also include an external predefined interface electrically coupled to the CPU die. In an embodiment, an active mm-wave interconnect may include a dielectric waveguide, and a first connector coupled to a first end of the dielectric waveguide. In an embodiment, the first connector comprises a first mm-wave engine, and the first connector is electrically coupled to the external predefined interface. Embodiments may also include a second connector coupled to a second end of the dielectric waveguide, wherein the second connector comprises a second mm-wave engine.

A waveguide device includes: an electrically conductive member having an electrically conductive surface; a waveguide member having an electrically-conductive waveguide face of a stripe shape opposing the electrically conductive surface, the waveguide member extending along the electrically conductive surface; and an artificial magnetic conductor extending on both sides of the waveguide member. The waveguide member has a bend at which the direction that the waveguide member extends changes. A waveguide which is defined by the electrically conductive surface, the waveguide face, and the artificial magnetic conductor includes a gap enlargement where a gap between the electrically conductive surface and the waveguide face is locally increased. In a perspective view along a direction perpendicular to the electrically conductive surface, at least a portion of the bend has an overlap with the gap enlargement.

The present invention provides a dielectric waveguide having excellent transmission efficiency. The dielectric waveguide includes a polytetrafluoroethylene molded article that has a permittivity of 2.05 or higher at 2.45 GHz or 12 GHz, a loss tangent of 1.2010.sup.4 or lower at 2.45 GHz or 12 GHz, and a hardness of 95 or higher.

The present technology relates to a transmitter, a transmission method, a receiver, and a reception method that can keep upsizing and cost increase to a minimum. The transmitter and the receiver have a detection mode and a communication mode as operation modes. The detection mode detects contact between a first waveguide on the side of the transmitter and a second waveguide on the side of the receiver. The communication mode sends or receives a modulated signal, acquired through frequency conversion of a baseband signal, via the first and second waveguides. The transmitter sends a given signal to the first waveguide in the detection mode. The transmitter and the receiver go from the detection mode to the communication mode in response to a given signal received by the receiver via the second waveguide and send and receive the modulated signal via the first and second waveguides in the communication mode.