A flexible and twistable terahertz waveguide assembly has a flexible waveguide with waveguide flange connectors at its ends. The flexible waveguide comprises a segmented tube of a plurality of tube segments which are connected to each other. The tube encloses a dielectric waveguide which is held by means of threads (filaments) at the center of the tube. The individual segments are tiltable and/or pivotable against each other, allowing bending and twisting of the waveguide cable.

Contactless extremely high frequency connector assemblies, passive cable connector assemblies, and active cable connector assemblies are disclosed herein. In one embodiment, a contactless connector assembly can include several (EHF) contactless communication units operable to selectively transmit and receive EHF signals, and several signal directing structures coupled to the EHF CCUs. The signal directing structures can direct the EHF signals along a plurality of EHF signal pathways.

A flexible waveguide device, of the bellows type, for guiding a radio frequency signal at a given frequency range. The device includes: a core including outer and inner side walls, the inner walls delimiting a waveguide channel; two fixing flanges connected to or integral with respective ends of the core, and at least one flexible corrugated portion formed on a part of the outer side walls of the core and including a plurality of circumferential ribs adjacent to each other. Each rib is devoid of corrugation along its circumference. Also, a method of manufacturing the flexible waveguide device.

A flexible waveguide device, of the bellows type, for guiding a radio frequency signal at a given frequency range. The device includes: a core including outer and inner side walls, the inner walls delimiting a waveguide channel; two fixing flanges connected to or integral with respective ends of the core, and at least one flexible corrugated portion formed on a part of the outer side walls of the core and including a plurality of circumferential ribs adjacent to each other. Each rib is devoid of corrugation along its circumference. Also, a method of manufacturing the flexible waveguide device.