An antenna device includes: an antenna panel; one input terminal through which a high-frequency signal is input; and a feeding circuit which distributes the high-frequency signal input to the input terminal to a plurality of antenna elements provided on the antenna panel. The feeding circuit includes: at least one first-stage branch circuit which includes one input and two outputs; at least two second-stage branch circuits which receive outputs of the first-stage branch circuit and include one input and two outputs; and a combining circuit which includes two inputs and one output and receives two outputs selected from the outputs of the first-stage branch circuit and outputs of the second-stage branch circuit.

An assembly is provided for a turbine engine. This turbine engine assembly includes a turbine engine case, a first transceiver and a second transceiver. The turbine engine case includes a case wall and a waveguide. The waveguide is formed integral with the case wall. The waveguide includes a waveguide channel. The second transceiver is configured to be in signal communication with the first transceiver through the waveguide channel.

An image display device and a video wall including the same are disclosed. The image display device includes a housing, a display configured to display an image, a first wireless communication module disposed on one surface of the housing, and a second wireless communication module disposed at a position on an opposite surface of the housing corresponding to a position of the first wireless communication module. The first wireless communication module and the second wireless communication module transmit and receive a signal through the same short-range communication method. Various other embodiments are possible.

A microwave connector assembly comprises a waveguide ferrule having a receiving end receiving a dielectric waveguide, a connecting end distal to the receiving end, and a locking member, and a ferrule socket at least partially receiving the waveguide ferrule in a ferrule receptacle. The ferrule socket engages in a locking connection with the locking member. The ferrule socket has a coding member engaging a complementary coding member of the waveguide ferrule only when the waveguide ferrule is positioned relative to the ferrule socket in a single predetermined angular position or in one of two predetermined angular positions that are rotated by 180° with respect to each other.

The present invention reduces the risk of damaging a waveguide made of a brittle material. A transmission line (1) includes: a first waveguide (11) which is made of a brittle material; a second waveguide (21); and a bonding layer (31) by which the first waveguide (11) and the second waveguide (21) are bonded and which is electrically conductive. At least part of the bonding layer (31) is made of an electrically conductive adhesive, the at least part of the bonding layer (31) being in contact with the first waveguide (11).

The invention provides a connector-attached dielectric waveguide that allows the dielectric waveguide to be easily connectable with an opposite component and is capable of forming a connection structure exhibiting low transmission and return losses of a high frequency signal. The connector-attached dielectric waveguide includes a dielectric waveguide and a connector. The dielectric waveguide includes a dielectric waveguide body and a dielectric waveguide end. The dielectric waveguide end has a smaller cross-sectional area than the dielectric waveguide body.

The present technology relates to a communication device, a communication method, and an electronic device which are capable of suppressing the leak of an electromagnetic wave to the outside of housings in a case where two communication devices perform communication in a state in which housings thereof are brought into contact with or close to each other. The electronic device includes: a waveguide tube that includes a choke structure nearby an opening end and transmits a signal in a state in which the opening end is in contact with or close to an opening end of another waveguide tube; and a transmitting unit that transmits a transmission signal via the waveguide tube and controls a relative relation between a transmission frequency of the transmission signal and a frequency characteristic of the choke structure. The present technology can be applied to, for example, communication devices that transmit millimeter wave signals.

The described features include a scalable waveguide architecture for a waveguide device. The waveguide device may be split into one or more waveguide blocks instead of manufacturing increasingly larger single-piece waveguide devices. Described techniques provide for a radio-frequency (RF) seal between such waveguide blocks that may facilitate greater manufacturing tolerances while maintaining an effective RF seal at the junction of the waveguide blocks. The described techniques include channels within one or more waveguide blocks opening to the dielectric gap between the waveguide blocks. The channels may, for each of multiple waveguides joined at the interface between waveguide blocks, be included in one or both waveguide blocks and may be in a single waveguide dimension relative to the multiple waveguides, or extend for more than one waveguide dimensions.

A window/seal and a satellite ground station antenna using the window/seal. A window/seal for a circular waveguide includes a right-circular cylindrical window having an axis, an annular recess surrounding and coaxial with the cylindrical window, and an annular rib surrounding and coaxial with the annular recess. An outer diameter of the annular rib is configured to fit closely within an inside diameter of the circular waveguide.

A pipe coupling system including a pair of tubular flange halves and a plurality of clamp segments. A seal resides in a groove on the flange face. The tube mating ends are secured to the pipe or tubing. The flange halves are then drawn together and the seal is compressed. The clamp segments are placed around the periphery of the joined flanges. The pipe coupling system advantageously separates the functions of squeezing the seal from tightening the flanges, minimizes the total space required for achieving a seal, is easily disassembled and reassembled without causing significant process downtime, minimizes the radial space needed beyond the outer diameter of the pipe, and effectively seals against leakage of vacuum, liquid, or gas.