According to one aspect of the invention, there is provided a connector for connecting a waveguide and a board, comprising: a first opening part formed in a direction perpendicular to one side of a board and coupled to the one side of the board; a second opening part formed in a direction parallel to a longitudinal direction of a waveguide for signal transmission, wherein the waveguide is capable of being coupled to the second opening part; and a signal guide part connecting the first and second opening parts and including a hollowness surrounded by a conductive layer therein.

A power sensor system, assembly and method for use as a power sensor standard in the 50 to 75 GHz frequency range. The power sensing system comprises a housing comprising a dual ridged waveguide impedance transformer, and a resistive component attachable to a back side of the housing. The resistive component comprises a terminating element electrically, but not thermally isolated from a sensing element. The sensing element operates at a constant resistance and is perpendicularly oriented to the terminating element.

The present disclosure relates to a multilayer electromagnetic waveguide that includes a plurality of layers forming guide channels for an electromagnetic wave, and at least one transition device including at least one dielectric layer between two guide channels, referred to as coupled guide channels, extending as an extension. Each transition device includes at least one adaptation channel extending in a longitudinal direction, and each adaptation channel is defined by two electrically conductive walls. At least one wall extends along the dielectric spacer layer from one end of the coupled guide channel, over a length suitable for optimizing the transmission of an electromagnetic wave between the two coupled guide channels.

A modular electromagnetic antenna assembly configured for securement to a structure is provided. The assembly includes an antenna, a radio, and a base. The base has a bracket securable to the structure and the base has at least one feed. The radio and base together form a waveguide that transmits radio waves between the radio and the antenna. The radio is removably secured to the base so as to form a removable mechanical connection to the base and a removable communication connection with the at least one feed through the base.

The invention relates to a cavity resonator device (1000) comprising at least two adjacent cavity resonators (1010, 1020) for radio frequency, RF, signals, separated by a common side wall (1030) having an opening (1032) wherein said cavity resonator device (1000) comprises at least one coupling element (100) for coupling two adjacent cavity resonators (1010, 1020) of said cavity resonator device (1000) wherein said at least one coupling element (100) comprises a base section (110) and a top section (120), wherein said top section (120) is displaced vertically from said base section (110) by a first distance (d1) along a longitudinal axis (a1) of said coupling element (100), and wherein said coupling element (100) comprises at least a first coupling arm (130) and a second coupling arm (140), each of said coupling arms (130, 140) connecting said base section (110) with said top section (120), wherein said at least one coupling element (100) is arranged rotably around an axis of rotation with respect to said wall (1030) in said opening (1032), wherein said axis of rotation is said longitudinal axis (a1) of said coupling element (100) or an axis parallel thereto, and wherein said axis of rotation projects through the base section (110) and the top section (120) of the coupling element (100).

A transition arrangement for interconnection of waveguide structures or waveguide flanges for forming a waveguide twist, wherein a waveguide twist section arrangement including a number of waveguide twist sections is arranged between the waveguide structures or waveguide flanges for rotating the polarization of waves or signals twisted or forming an angle with an adjacent waveguide flange and/or another adjacent waveguide twist section with respective waveguide openings. The or each twist section on at least one side includes a surface of a conductive material with a periodic or quasi-periodic structure formed by a number of protruding elements allowing waves to pass across a gap between a surface around a waveguide opening to another waveguide opening in a desired direction or waveguide paths, at least in an intended frequency band of operation, and to stop propagation of waves in the gap in other directions.

An antenna includes a plurality of waveguide antenna elements arranged in a first array configured to operate with a first polarization. The antenna also includes a plurality of waveguide output ports arranged in a second array configured to operate with a second polarization. The second polarization is different from the first polarization. The antenna further includes a polarization-modification layer with channels defined therein. The polarization-modification layer is disposed between the waveguide antenna elements and the waveguide output ports. The channels are oriented at a first angle with respect to the waveguide antenna elements and at a second angle with respect to the waveguide output ports. The channels are configured to receive input electromagnetic waves having the first polarization and transmit output electromagnetic waves having a first intermediate polarization. The waveguide output ports are configured to receive input electromagnetic waves and radiate electromagnetic waves having the second polarization.

A mechanical architecture of a beam former comprises a plurality of elementary combination circuits and a support structure, the elementary combination circuits being independent of one another, each elementary combination circuit intended to form a beam, the support structure comprising two metal interface plates, respectively top and bottom, the two interface plates formed parallel to one another and spaced apart from one another, in a heightwise direction Z orthogonal to the two interface plates, the elementary combination circuits mounted in the space between the two interface plates and fixed at right angles to the two interface plates.

Waveguide transition devices for power-combining devices are disclosed. A waveguide transition device includes a coaxial waveguide section that is configured to concurrently receive electromagnetic output signals from a plurality of amplifiers and transition the electromagnetic output signals to a waveguide coupling section to form a combined and amplified electromagnetic signal. In turn, the waveguide coupling section transitions the combined and amplified electromagnetic signal to a waveguide output port. As disclosed herein, representative waveguide transition devices are configured to allow higher operating powers without typical device failure mechanisms. Spatial power-combining devices that include representative waveguide transition devices have improved power handling capabilities.

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.