The invention relates to a waveguide arrangement for guiding electromagnetic waves, which comprises a rectangular waveguide and a circular waveguide. The rectangular waveguide merges into the circular waveguide at an angle. The circular waveguide is filled with a dielectric which projects into the rectangular waveguide in a transition section. The dielectric filling is beveled at a defined angle in the transition section so that a transition surface is formed by the inner edge at the transition of the waveguide arrangement and the end face of the rectangular waveguide at the transition. The dielectric filling is preferably flush with the closing wall of the rectangular waveguide.

A redirecting device for mm-waves includes an input section, an output section disposed at 90 degrees to the input section, and a waveguide member extending from the input section to the output section. The waveguide member is a rigid dielectric material.

An apparatus comprises a waveguide section including an outer layer of conductive material tubular in shape and having multiple ends; and a joining feature on at least one of the ends of the waveguide section configured for joining to a second separate waveguide section.

High speed waveguide-based data communication systems are disclosed. Such systems may include separable electrical connectors, forming signal propagation paths between electronic assemblies with one or more waveguides.

A method is provided for manufacturing RF structures such as waveguides using additive manufacturing such as 3D printing. RF structures are also provided suitable for manufacturing with said method. The RF structures include waveguides and antenna assemblies manufactured using the additive process. The structures include flanges at the ends of the waveguide and the flanges are integrally manufactured with the said manufacturing process. The structures include a participating conductive surface that is formed on the entirety of an interior of the body, where the conductive surface extends continuously between the two ends and has been subjected to a surface modification process.

A networking system includes a transmitter, a waveguide and a receiver. The transmitter is configured to generate a millimeter-wave signal carrying data. The waveguide is transmissive at millimeter-wave frequencies and is configured to receive the millimeter-wave signal from the transmitter, and to guide the millimeter-wave signal from the transmitter to a downstream location by having a dielectric constant that varies over a transversal cross-section of the waveguide in accordance with a predefined profile. The receiver is configured to receive the millimeter-wave signal guided by the waveguide, and to extract the data carried by the received millimeter-wave signal.

An electronic device may be provided with a transceiver, a substrate, and antennas mounted to the substrate. The transceiver and antennas may convey signals between 10 GHz and 300 GHz. A radio-frequency connector may be mounted to the substrate. A coaxial cable may couple the transceiver to the connector. A stripline in the substrate may couple the connector to the antennas. Impedance matching structures may be embedded in the substrate for matching an impedance of the stripline to an impedance of the coaxial cable. The impedance matching structures may include a fence of conductive vias, landing pads, and a volume of the dielectric substrate defined by the fence of conductive vias and the landing pads. The impedance matching structures may be configured to perform impedance matching over a relatively wide bandwidth that includes the frequency band of operation for the antennas.

A waveguide-to-parallel-plate twist transition includes at least one waveguide-to-parallel plate twist transition element comprising an input port comprising an input waveguide portion, the input waveguide portion configured to orient an E-field of an electromagnetic wave along a first plane, and an output port comprising a multi-mode parallel plate portion, the multi-mode parallel plate portion configured to orient an E-field of an electromagnetic wave along a second plane, wherein an angle of orientation of the second plane is different from an angle of orientation of the first plane. The twist transition further includes at least one intermediate discrete twist waveguide stage coupling each input waveguide portion to the output multi-mode parallel plate portion, wherein at least one intermediate discrete twist waveguide stage is configured to orient an E-field of an electromagnetic wave along a third plane, wherein an angle of orientation of the third plane is between the angle of orientation of the first plane and the angle of orientation of the second plane.

A networking system includes a transmitter, a waveguide and a receiver. The transmitter is configured to generate a millimeter-wave signal carrying data. The waveguide is transmissive at millimeter-wave frequencies and is configured to receive the millimeter-wave signal from the transmitter, and to guide the millimeter-wave signal from the transmitter to a downstream location by having a dielectric constant that varies over a transversal cross-section of the waveguide in accordance with a predefined profile. The receiver is configured to receive the millimeter-wave signal guided by the waveguide, and to extract the data carried by the received millimeter-wave signal.

An object is to provide a transmission line having an air bridge structure in which grounding conductors of a transmission line are connected by wiring and which is stable in terms of mechanical strength by lowering an electrostatic capacitance in a region where the wirings connecting the central conductor and the grounding conductor intersect with each other. The transmission line includes a substrate, a first central conductor and a second central conductor that are formed on a surface of the substrate, a third central conductor that has a first erection portion and a second erection portion erected on the surface, and a first grounding conductor and a second grounding conductor. The transmission line further includes a third grounding conductor connecting the first grounding conductor and the second grounding conductor. The third central conductor and the third grounding conductor form an air bridge structure.