The present invention relates to a filter and a method of manufacturing the same, the filter including an RF connector configured to have a predetermined electrical signal line, a filter body having at least one impedance matching space in which the RF connector is installed, a relevant PCB on which one end of the RF connector is fixedly mounted, the relevant PCB coupled to be in close contact with one side surface of the filter body, and an annular gasket interposed between one side surface of the filter body and the relevant PCB to block a signal leak, in which a concave-convex portion is processed on a surface of one side surface of the filter body to which the annular gasket is attached to increase an attachment area, thereby providing an advantage of improving a bonding force of an attachment portion to which the gasket is attached.

A waveguide filter having a core including an external face and internal faces defining a channel for filtering and guiding the waves. The channel includes several slots, each having a first and a second face. The first face is inclined in relation to the second face. A method for manufacturing the waveguide filter.

A radio-frequency device comprising (1) an input resonator configured to receive an input signal, (2) an output resonator configured to provide an output signal, and (3) a plurality of signal paths coupled between the input resonator and the output resonator, wherein each signal path included the plurality of signal paths comprises a bandpass filter that (A) is at least partially composed of a ceramic material and (B) has a bandpass center frequency different from every other signal path included in the plurality of signal paths. Various other apparatuses, systems, and methods are also disclosed.

Signal conductor patterns (21, 31) are respectively formed on a first main surface (101) and a second main surface (102) of an insulating substrate (100). Ground conductor patterns (222, 322) are formed on the first main surface (101) and the second main surface (102). A first conductive member (41) is formed in the insulating substrate (100) and electrically connects the signal conductor patterns (21, 31) in the thickness direction. A second conductive member (42) is formed in the insulating substrate (100) and connected to the ground conductor patterns (222, 322). A dielectric member (43) is disposed between the first conductive member (41) and the second conductive member (42), is in contact with the first conductive member (41) and the second conductive member (42), and has a dielectric constant different from the dielectric constant of the insulating substrate (100).

A waveguide arrangement for transmitting microwaves, and for measuring a limit level or a filling level, is provided, the waveguide arrangement for transmitting microwaves including a waveguide tube having a rectangular or elliptical inner cavity and an outer wall; and a jacket, an inner wall of which corresponds at least in sections with a shape of the outer wall of the waveguide tube.

A super-broadband waveguide feed network includes multiple receive (RX) full reject waveguide filters and multiple RX reject clone waveguide filters disposed in a clone carousel about an aperture port and configured to reject RX frequencies, and a branch line coupler configured to couple the multiple RX full reject waveguide filters and RX reject clone waveguide filters to other components of a waveguide feed network. The super-broadband waveguide feed includes an RX polarizer configured to couple to an end of the aperture port. The super-broadband waveguide feed is configured to be fabricated in one to three pieces composed of a single split plane on the zero-current region, and the super-broadband waveguide feed is circularly polarized.

The present invention relates to a method of manufacturing a metal foil laminate which may be used for example to produce an antenna for a radio frequency (RFID) tag, electronic circuit, photovoltaic module or the like. A web of material is provided to at least one cutting station in which a first pattern is generated in the web of material. A further cutting may occur to create additional modifications in order to provide additional features for the intended end use of the product. The cutting may be performed by a laser either alone or in combinations with other cutting technologies.

Waveguides and methods for manufacturing a waveguide that include forming a first channel in a first layer of dielectric material, the first channel comprising one or more walls; forming a second channel in a second layer of dielectric material, the second channel comprising one or more walls; depositing electrically conductive material on the one or more walls of the first channel; depositing electrically conductive material on the one or more walls of the second channel; arranging the first layer adjacent to the second layer to form a stack with the first channel axially aligned with and facing the second channel; and heating the stack so that the conductive material on the one or more walls of the first channel and the conductive material on the one or more walls of the second channel connect to form the waveguide.

Waveguide device (1) for guiding a radio frequency signal at a given frequency f, the device (1) including: a core (3) manufactured by additive manufacturing and including side walls with inner and outer surfaces (7, 8), the inner surfaces (7) delimiting a waveguide channel (2), wherein a cross-section of the channel (2) has two straight sides joined together by two half-portions, at least one of the two half-portions being rounded or formed of at least two straight segments the cross-section having a maximum length (a) and a maximum width (b), the ratio between the maximum length (a)/maximum width (b) being between 2.05 and 3.5, preferably between 2.05 and 2.4.

A surface mountable coupler may include a monolithic base substrate having a first surface, a second surface, a length in an X-direction, and a width in a Y-direction that is perpendicular to the X-direction. A plurality of ports may be formed over the first surface of the monolithic base substrate including a coupling port, an input port, and an output port. The coupler may include a first thin film inductor and a second thin film inductor that is inductively coupled with the first thin film inductor and electrically connected between the input and output ports. A thin film circuit may electrically connect the first thin film inductor with the coupling port. The thin film circuit may include at least one thin film component.