Provided is a dielectric waveguide filter that includes a dielectric main body. A plurality of isolation slots and frequency tuning blind holes are provided in the dielectric main body. At least two port signal transmission holes are further provided in the dielectric main body. The at least two port signal transmission holes and at least part of the plurality of frequency tuning blind holes are disposed on two opposite sides of the dielectric main body. In a thickness direction of the dielectric main body, the at least two port signal transmission holes do not overlap with the at least part of the plurality of frequency tuning blind holes. The dielectric waveguide filter according to embodiments of this disclosure achieves miniaturization while improving out-of-band rejection capability.

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 resonating structure and a dielectric filter having the same are disclosed. The resonating structure comprises a body, at least one set of negative coupling holes, and a conductive material layer. The body is made of a solid dielectric material and comprises at least two resonators. The negative coupling holes are formed at a connection between two adjacent resonators. Each set of negative coupling holes comprises a first blind hole and a second blind hole disposed on two opposite surfaces of the body respectively. The first blind hole and the second blind hole are offset from each other in a plane perpendicular to a direction along which the first or second blind hole is dug. The conductive material layer covers surfaces of the body and surfaces of the first blind hole and the second blind hole.

The present disclosure relates to a ceramic waveguide filter for an antenna, which, in particular, includes a housing including a plurality of resonance blocks which are prepared from a dielectric having a predetermined dielectric constant, and some of which are partitioned by an inner partition wall; a plurality of resonators, each resonator being caused to serve as a single resonator by a plurality of resonator posts respectively provided in the plurality of resonance blocks included in the housing; and an input porthole to which an input port is connected to input a signal to any one of the plurality of resonators, and an output porthole to which an output port is connected to output a signal from any one of the plurality of resonators, Since either the input porthole or the output porthole is provided with a notch structure bar integrally formed in the housing, which extends towards the resonator post skipping from the adjacent resonator post among the plurality of resonator posts, advantageously the notch design of the passband can be performed with easy.

Provided is a filter capable of compensating property change caused due to temperature change. A filter (1) includes a post-wall waveguide serving as electromagnetically coupled resonators (201-205) and cavities (301a-305a) electromagnetically coupled to the resonators (201-205) via coupling windows (AP.sub.101a-AP.sub.105a) in a second conductor layer (6a) of the post-wall waveguide. A substrate (5) of the post-wall waveguide includes a first dielectric layer constituted by a first dielectric material, and a second dielectric layer (9a) constituted by a second dielectric material is provided inside the cavities (301a-305a). In the filter (1), a dielectric constant of the first dielectric material increases and a dielectric constant of the second dielectric material decreases due to the same range of temperature rise, or the dielectric constant of the first dielectric material decreases and the dielectric constant of the second dielectric material increases due to the same range of temperature rise.

A high-frequency module including a transmission line for a high-frequency signal and a waveguide conversion structure, capable of reducing the size thereof, and a method for manufacturing such a high-frequency module are provided. A high-frequency module includes a core material in which a first dielectric layer is provided between a first conductive layer and a second conductive layer, a laminated filter in which a plurality of core materials and dielectric layers are alternately laminated, and a through hole pierces therethrough from a lowermost conductive layer provided so as to be in contact with the lowermost dielectric layer to the uppermost first conductive layer, a first surface dielectric layer provided above the laminated filter, and a first surface conductive layer provided above the first surface dielectric layer, the first surface conductive layer including a transmission line for a high-frequency signal and a ground GND.

A waveguide structure includes a dielectric layer, a plurality of circuit layers, a plurality of insulation layers, and a conductor connection layer. The dielectric layer has an opening. The circuit layers are disposed on the dielectric layer. The insulation layers and the circuit layers are alternately stacked. The conductor connection layer covers an outer wall of the opening in a direction perpendicular to the circuit layers and connects at least two circuit layers on two opposite sides of the opening. At least the conductor connection layer and a part of the circuit layers define an air cavity for transmitting signals at a position corresponding to the opening.

Designing a filter with desired characteristics is made easy. A filter (1) includes a plurality of resonators (10 to 50) which are electromagnetically coupled. The plurality of resonators (10 to 50) each have a broad wall (11, 12, 21, 22, 31, 32, 41, 42, 51, 52) that is in a shape of a circle or a regular polygon with six or more vertices, and two resonators, which are coupled together, of the plurality of resonators (10 to 50) are arranged such that D<R.sub.1+R.sub.2 is satisfied, where R.sub.1 and R.sub.2 represent radii of circumcircles of the broad walls of the two resonators and D represents a center-to-center distance between the two resonators.

The present invention achieves a filter that makes it possible to easily adjust a center frequency of a pass band. A filter (1) includes a post-wall waveguide (11) functioning as a resonator group consisting of a plurality of resonators (11a to 11e) that are electromagnetically coupled to each other. The post-wall waveguide (11) has a broad wall (first broad wall 112) that is provided with openings (112a to 112e) which allow opening of at least one resonator (11a to 11e) belonging to the resonator group. These openings (112a to 112e) are used to adjust a center frequency of a pass band of the filter (1).

Provided is a switch device that can be used in a millimeter wave band and that can exhibit both low loss and high isolation characteristics. This switch device (1) includes: a post-wall waveguide (filter main body 1M) in which openings (AP1 to AP5) are formed in a broad wall (conductor layer 2); a cover (5) including a portion that blocks the openings (AP1 to AP5), the portion being made of an electrically conductive material; and a cover control mechanism (actuator 6) that switches between a first state in which the openings (AP1 to AP5) are blocked by the cover (5) and a second state in which the openings (AP1 to AP5) are open.