An interposer acts as a buffer zone between a transceiver IC and a dielectric waveguide interconnect and establishes two well-defined reference planes that can be optimized independently. The interposer includes a block of material having: a first interface region to interface with an antenna coupled to an integrated circuit (IC); and a second interface region to interface to the dielectric waveguide. An interface waveguide is formed by a defined region positioned within the block of material between the first interface region and the second interface region.

A terahertz (THz) waveguide and method for production allows for THz waveguides to be used in or on a printed circuit board (PCB) such that the propagation of THz waves require less power, result in less signal loss due to radiation or dispersion, and propagate more efficiently. Additionally, the position and/or geometry of a waveguide, as well as any additional antenna or coupling element, may be adjusted on or in the PCB such that the electromagnetic field of the waveguide may more efficiently couple with the electromagnetic field of the PCB.

A broadband transition coupling for transition between a waveguide and a printed circuit board with a substrate integrated waveguide is disclosed. The broadband transition coupling comprises a main body that encompasses an air-filled waveguide section and a transition section. The air-filled waveguide section comprises a first interface for the waveguide. The transition section provides a second interface for the printed circuit board. The transition section continuously tapers along the second interface in order to reduce a height of the transition section for transition coupling with the printed circuit board. Further, the present disclosure relates to a broadband system for processing electromagnetic signals.

Provided is a dielectric waveguide having a good reflection characteristic also in a band on a low frequency side of a center frequency of a given operation band. A dielectric waveguide (1) includes: a waveguide region (12) which is defined by a first wide wall (21), a second wide wall (22), a first narrow wall (23), a second narrow wall (24), and a short wall (25) and which is filled with a dielectric; and a mode conversion section (31) which includes a columnar conductor (34) extending from a surface of the waveguide region (12) toward an inside of the waveguide region (12). A width (W.sub.2) of the short wall (25) is configured to be greater than a waveguide width (Wi) at a location (x=x.sub.1) at which the columnar conductor (34) is provided.

Aspects of the subject disclosure may include, for example, a transmission medium for propagating electromagnetic waves. The transmission medium can have a first dielectric material for propagating electromagnetic waves guided by the first dielectric material, and a second dielectric material disposed on at least a portion of an outer surface of the first dielectric material for reducing an exposure of the electromagnetic waves to an environment that adversely affects propagation of the electromagnetic waves on the first dielectric material. Other embodiments are disclosed.

The invention relates to a coupling and decoupling device between a circuit carrier and a waveguide. The coupling and decoupling device contains a retaining element, which has a first end for coupling to the circuit carrier and a second end for coupling to the waveguide. Two dipole antennas, which are crossed over and oriented orthogonally to each other, are arranged between the first end and the second end. The coupling and decoupling device furthermore contains two conductor pairs, which are arranged crossed over each other and are designed such that the conductor pairs are connected to the two dipole antennas and to associated contact surfaces on the circuit carrier. According to the invention, an electrically conductive layer is fixed on the first end. The retaining element is formed as a hollow conductor having a first opening on the end face of the hollow conductor for coupling to the circuit carrier and a second opening on the end face of the hollow conductor for coupling to the waveguide. The first opening on the end face is closed by the electrically conductive layer.

In accordance with one or more embodiments, a dielectric coupler includes a neck portion configured to receive a first electromagnetic wave from a hollow waveguide. A flared portion is configured to generate, responsive to the first electromagnetic wave, a second electromagnetic wave along a surface of a transmission medium, wherein the flared portion at least partially surrounds the transmission medium, wherein the second electromagnetic wave propagates along the surface of the transmission medium without requiring an electrical return path. A tapered portion is configured to interface the neck portion to the flared portion.

A transmission line includes a post-wall waveguide which includes a dielectric substrate on which a pair of post-walls is formed and a first conductor layer and a second conductor layer opposed to each other with the dielectric substrate interposed therebetween and in which a region surrounded by the pair of post-walls, the first conductor layer, and the second conductor layer is a waveguide region, a waveguide tube having a hollow rectangular shape, being connected with the first conductor layer so as to cover an opening portion formed in a side wall, and in which an inside communicates with the waveguide region through an opening formed in the first conductor layer, and a wire member which is arranged such that through the opening, a first end is located inside the dielectric substrate and a second end is located in the waveguide tube.

A transmission line includes a post-wall waveguide which includes a dielectric substrate on which a pair of post-walls is formed and a first conductor layer and a second conductor layer opposed to each other with the dielectric substrate interposed therebetween, and in which a region surrounded by the pair of post-walls, the first conductor layer, and the second conductor layer is a waveguide region, a waveguide tube having a hollow rectangular shape, being connected with the first conductor layer to cover an opening portion formed in a side wall, and in which an inside communicates with the waveguide region through an opening formed in the first conductor layer, a blind via formed in the dielectric substrate such that one end is disposed inside the opening, and a pole member including a post member connected to the one end of the blind via and a support member supporting the post member.

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.