Disclosed is a ridge guide waveguide including a conductive base, a conductive ridge protruding upward from the conductive base and extending along a predetermined wave transmission direction, an upper conductive wall located over the conductive base and the conductive ridge and spaced apart from the conductive ridge by a gap, and an electromagnetic bandgap structure arranged adjacent to the conductive ridge between the conductive base and the upper conductive wall.

A semiconductor structure includes: a substrate; a first dielectric layer over the substrate; a waveguide over the first dielectric layer; a second dielectric layer over the first dielectric layer and laterally surrounding the waveguide; a first conductive member and a second conductive member over the second dielectric layer and the waveguide, the first conductive member and the second conductive member being in contact with the waveguide; a conductive bump on one side of the substrate and electrically connected to the first conductive member or the second conductive member; and a conductive via extending through the substrate and electrically connecting the conductive bump to the first conductive member or the second conductive member. The waveguide is configured to transmit an electromagnetic signal between the first conductive member and the second conductive member.

A circuit structure includes a substrate integrated waveguide, a substrate disposed on the substrate integrated waveguide, a waveguide signal feeding element and a ring-shaped conductive element. The substrate integrated waveguide includes another substrate having a waveguide transmitting region, two conductive layers disposed on this substrate and covering the waveguide transmitting region, and at least one waveguide conductive element passing through this substrate and electrically connected to the two conductive layers. The at least one waveguide conductive element surrounds the waveguide transmitting region. One of the conductive layers is located between the two substrates. The waveguide signal feeding element passes through one substrate and one conductive layer between the substrates, and the waveguide signal feeding element extends to the waveguide transmitting region. The waveguide signal feeding element is electrically insulated from one conductive layer. The ring-shaped conductive element is disposed in one substrate and surrounds the waveguide signal feeding element.

Example embodiments relate to substrate integrated waveguide (SIW) transitions. An example SIW may include a dielectric substrate having a top surface and a bottom surface and a first metallic layer portion coupled to the top surface of the dielectric substrate that includes a single-ended termination, an impedance transformer, and a metallic rectangular patch located within an open portion in the first metallic layer portion such that the open portion forms a non-conductive loop around the metallic rectangular patch. The SIW also includes a second metallic layer portion coupled to the bottom surface of the dielectric substrate and metallic via-holes electrically coupling the first metallic layer to the second metallic layer. The SIW may be implemented in a radar unit to couple antennas to a printed circuit board (PCB). In some examples, the SIW may be implemented with only a non-conductive opening that lacks the metallic rectangular patch.

Microelectronic assemblies that include a lithographically-defined substrate integrated waveguide (SIW) component, and related devices and methods, are disclosed herein. In some embodiments, a microelectronic assembly may include a package substrate portion having a first face and an opposing second face; and an SIW component that may include a first conductive layer on the first face of the package substrate portion, a dielectric layer on the first conductive layer, a second conductive layer on the dielectric layer, and a first conductive sidewall and an opposing second conductive sidewall in the dielectric layer, wherein the first and second conductive sidewalls are continuous structures.

A waveguide package and a method for manufacturing the same are disclosed. The waveguide package includes a package structure including a waveguide opened toward one side surface of a substrate, a semiconductor chip mounted on one surface of the package structure and configured to output an electrical signal to the waveguide. Since an interior of the waveguide is filled with air, electrical loss of the waveguide is minimized The cavity is formed by processing the substrate made of photosensitive glass. Accordingly, the waveguide may be accurately formed. An electronic circuit may also be formed at the waveguide package. Accordingly, it may be possible to provide a waveguide package enhanced in degree of integration.

A method for producing a waveguide in a multilayer substrate involves producing at least one cutout corresponding to a lateral course of the waveguide in a surface of a first layer arrangement comprising one or a plurality of layers. A metallization is produced on surfaces of the cutout. A second layer arrangement comprising one or a plurality of layers is applied on the first layer arrangement. The second layer arrangement comprises, on a surface thereof, a metallization which, after the second layer arrangement has been applied on the first layer arrangement, is arranged above the cutout and together with the metallization on the surfaces of the cutout forms the waveguide.

An electromagnetically shielded or reflecting device having a film of shielding or reflecting material and a device for obtaining, in a dielectric material volume, selective propagation of electromagnetic radiation in predetermined frequency band. The shielding or reflecting material includes a polymer, and electrically conducting particles substantially randomly dispersed in the polymer The film is used in shielding objects against electromagnetic radiation across a range of frequencies, The device for obtaining, in a dielectric material volume, selective propagation of electromagnetic radiation in predetermined frequency band includes a dielectric material volume extending from a first surface to a second surface, a first number of cavities, a second number of cavities, each cavity from the first and second numbers extending from the first surface to the second surface, the cavities being substantially randomly distributes on the first or second surface and being filed with an electrically conducting material.

The invention relates to a heatsink antenna array structure, which includes a fin-shaped metal heatsink, a metal bottom base of heatsink, and a substrate. The upper surface of substrate is connected with the metal bottom base of heatsink, the lower surface is connected with a chip. The chip works as heat source. There is a rectangular through-cavity array in the bottom base as radiation aperture. The substrate contains multiple metal layers and dielectric layers. The top metal layer has rectangular apertures corresponding to the rectangular through-cavity array in the bottom base. The dielectric layers contain metallic vias to construct a substrate integrated waveguide structure. The metallic vias effectively reduce the thermal resistance between the fin-shaped metal heatsink and the chip, and form the substrate integrated waveguide structure as the feeding network of heatsink antenna array. Compared with the prior arts, the present invention realizes a conformal structure of antenna and heatsink, which improves the integration level of system.

Embodiments relate to systems, methods, and computer-readable media to enable a wireless communication device. In one embodiment a wireless communication device is configured to radiate a millimeter wave signal through a circular waveguide. A patch antenna is resonated in a Transverse Magnetic 1-0 (TM10) operating mode and electrically couples to an open end of the circular waveguide. The electric field pattern of the patch antenna is such that the millimeter wave signal is launched into the waveguide propagating in a Transverse Electric 1-1 (TE11) mode. In other embodiments, various other configurations may be used as described herein.