Disclosed is a signal conductor formed as a metal oxide varistor (MOV), the MOV having a first MOV and a second MOV separated by an insulator. In some embodiments, the disclosed signal conductor may be used in a system communicably coupled to a power transmission distribution network, the system capable of launching transverse electromagnetic waves onto a transmission line, where the electromagnetic waves propagating a data signal conveyed to the system by the MOV.

Disclosed is a signal conductor formed as a metal oxide varistor (MOV), the MOV having a first MOV and a second MOV separated by an insulator. In some embodiments, the disclosed signal conductor may be used in a system communicably coupled to a power transmission distribution network, the system capable of launching transverse electromagnetic waves onto a transmission line, where the electromagnetic waves propagating a data signal conveyed to the system by the MOV.

A waveguide interface is disclosed. The disclosed waveguide interface comprises: an inner boundary region extending peripherally around a cavity, a recessed region extending peripherally around the inner boundary region, and a plurality of protrusions extending from the recessed region.

A multi-mode filter with a resonator having a plurality of resonator bodies which are rectangular prisms and the filter being configured with a through hole that electrically connects an input and an output to the center of a coupling structure between a respective pair of slabs. The multi-mode filter further comprising a plurality of coupling aperture segments which are coupling structures between each pair of resonator bodies or slabs such that two triangular apertures at opposite corners of at least two different slab-cube interfaces are utilized with the triangular apertures being diagonally opposed to one another across the respective interface.

A multi-mode filter with a resonator having a plurality of resonator bodies which are rectangular prisms and the filter being configured with a through hole that electrically connects an input and an output to the center of a coupling structure between a respective pair of slabs. The multi-mode filter further comprising a plurality of coupling aperture segments which are coupling structures between each pair of resonator bodies or slabs such that two triangular apertures at opposite corners of at least two different slab-cube interfaces are utilized with the triangular apertures being diagonally opposed to one another across the respective interface.

A composite electronic device comprises a ceramic waveguide, CWG, device having at least two input/output, I/O, ports; and a ceramic stripline, CS, device comprising at least one stripline transmission paths having at least two I/O ports. The CS device is affixed to the CWG device such that at least one of the I/O ports of the CWG device is electrically connected to a corresponding one I/O port of the CS device.

An interconnection includes a circuit board assembly and a hybrid cable assembly. The circuit board assembly includes first and second outer layer assemblies and an intermediate layer assembly. The first and second outer layer assemblies each include an electrically conductive layer. A cable-receiving space is formed at a first side edge of the circuit board assembly. The hybrid cable assembly includes a dielectric waveguide system having a core and a cladding and being configured to transmit a radar wave in a frequency range from about 70 to about 300 GHz. A first conductor system configured to transmit power and/or data is disposed adjacent to the dielectric waveguide system and includes an electrically conductive inner conductor assembly inserted into the cable-receiving space and galvanically connected to a first inner-conductor connection region. The core of the dielectric waveguide system is inserted into the cable-receiving space and disposed at a waveguide connection region.

A high-frequency signal transmission-reception circuit includes a plurality of band pass filter groups each including a plurality of band pass filter pairs; a first switch including a plurality of band pass filter-side terminal groups each including a plurality of band pass filter-side terminals, and an antenna-side terminal group; a plurality of couplers configured to output respective signal strengths of high-frequency signals transmitted on a plurality of transmission paths; and a second switch including an input terminal group electrically connected to the plurality of couplers, and an output terminal configured to output a detection signal output from one of the plurality of couplers. The first switch electrically connects one band pass filter-side terminal in one band pass filter-side terminal group and one antenna-side terminal, and also electrically connects one band pass filter-side terminal in another band pass filter-side terminal group and another antenna-side terminal.

A high-frequency signal transmission-reception circuit includes a plurality of band pass filter groups each including a plurality of band pass filter pairs; a first switch including a plurality of band pass filter-side terminal groups each including a plurality of band pass filter-side terminals, and an antenna-side terminal group; a plurality of couplers configured to output respective signal strengths of high-frequency signals transmitted on a plurality of transmission paths; and a second switch including an input terminal group electrically connected to the plurality of couplers, and an output terminal configured to output a detection signal output from one of the plurality of couplers. The first switch electrically connects one band pass filter-side terminal in one band pass filter-side terminal group and one antenna-side terminal, and also electrically connects one band pass filter-side terminal in another band pass filter-side terminal group and another antenna-side terminal.

A high-frequency line connection structure connects a coaxial line and a planar line. The high-frequency line connection structure includes a conductive base that is formed into a planar shape having a length that matches a length of the planar line along a lengthwise direction of a substrate, where the planar line is disposed on a surface of the conductive base, and a protrusion structure provided in a region, on the surface of the conductive base, adjacent to the coaxial line, the protrusion structure protruding from the surface of the conductive base, where the protrusion structure is in contact with a side surface of a region along the lengthwise direction of the substrate, where a ground conductive film with a smaller width out of a pair of ground conductive films of the planar line, is formed.