Abstract: A high-frequency terminator includes a dielectric substrate, a metal layer provided on a back surface of the dielectric substrate, a transmission line provided on a front surface of the dielectric substrate, a resistor provided on the front surface of the dielectric substrate and connected to the transmission line, and a conductor electrically connecting the resistor and the metal layer. The dielectric substrate includes a first substrate part having a first thickness in a direction from the back surface toward the front surface, and a second substrate part having a second thickness in the direction that is less than the first thickness. The transmission line extends from the first substrate part to the second substrate part and is connected to the resistor on the second substrate part. The conductor electrically connects the metal layer and the resistor at the second substrate part.

Abstract: The present disclosure relates to transverse magnetic wave (TM) mode filters and methods for manufacturing a TM mode filter. One example TM mode filter includes a filter body, a dielectric, and a transition layer, the filter body including a filter cavity and a cover, and having hollow confined space, the dielectric located in the hollow confined space, and the transition layer configured to connect the dielectric and the filter body. A coefficient of thermal expansion (CTE) of the transition layer is between a CTE of the filter body and a CTE of the dielectric.

Abstract: A transmission line includes first, second, third, and fourth signal lines, and first, second, third, and fourth electrode pads respectively connected thereto. A first main surface of an external connection portion includes a first region in which the first electrode pad and the second electrode pad are provided, and a second region in which the third electrode pad and the fourth electrode pad are provided. Each of the first electrode pad and the second electrode pad, in a plan view, is surrounded by a ground electrode, and at least one of the third electrode pad and the fourth electrode pad, in the plan view, includes a portion that is not surrounded by the ground electrode.

Abstract: A cross-coupled filter includes a minimum resonant structure including four resonators. In the minimum resonant structure, two resonators in the same row form a group, and two resonators in the same row are capacitively mainly coupled or inductively mainly coupled; two resonators in the same column are electrically and magnetically hybrid coupled; and the coupling polarities of the two groups of resonators in the two rows of resonant units are opposite to each other and form at least a cross-coupling. The invention realizes miniaturization and light weight in structural characteristics, and realizes low loss and good harmonic characteristics in electrical performance.

Abstract: Systems and techniques that facilitate high-density embedded broadside-coupled attenuators are provided. In various embodiments, an attenuator can comprise an output line. In various aspects, the attenuator can further comprise a reflectively-terminated input line that is broadside coupled to the output line. In various instances, a downstream end of the reflectively-terminated input line can be shorted to ground. In other instances, a downstream end of the reflectively-terminated input line can be open from ground. In various cases, the output line can exhibit a non-looped-back-layout.

Abstract: The present disclosure relates to a waveguide gasket arrangement arranged for electrically sealing a waveguide interface between a first waveguide end and a second waveguide end, where the waveguide gasket arrangement comprises a first plurality of electrically conducting members connected to a first common structure along a first circumference. The waveguide gasket arrangement further comprises a second plurality of electrically conducting members connected to a second common structure along a second circumference.

Abstract: A microwave coupling/combining device for coupling and combining at least two microwave sources includes a waveguide provided with a sleeve extending longitudinally along a main axis and having two opposing ends having a first end provided with an element forming a short-circuit and a second open end. The device further includes at least one transverse bar extending inside the sleeve along a transverse axis orthogonal to the main axis; and at least two coaxial connectors provided for being connected respectively to microwave sources. Each coaxial connector is mounted externally on the sleeve and has a central conductive core connected to and extended by a conductive antenna extending in a direction orthogonal to the transverse axis and to the main axis inside the sleeve and ending by an end attached to a transverse bar.

Abstract: Disclosed is a circular filter assembly, relating to the field of wireless communication. The circular filter assembly includes: a dielectric filter and a dielectric waveguide circulator. The dielectric waveguide circulator is provided with at least three end portions. An end of the dielectric filter is connected to one of the end portions. A cascade matching window is disposed at a connection between the dielectric filter and the end portion, and the cascade matching window is used for adjusting impedance of the circular filter assembly. The dielectric waveguide circulator and the dielectric filter are integrally formed. By integrally forming the dielectric waveguide circulator and the dielectric filter, connecting members between the dielectric waveguide circulator and the dielectric filter can be reduced. In addition, the cascade matching window is added to perform impedance adjustment, to obtain the same standing wave indicator as a conventional connection using a connector.

Abstract: Radio frequency device including at least: a tube through which a channel passes, a front face and/or a rear face forming a bearing surface through which the channel passes, the bearing surface forming an annular frame around one end of the tube and being integral with the tube. The bearing surface includes axial fixing apertures passing through the bearing surface and opening outside the channel in order to allow fixation of the device, and the width of the frame being greater at and in the immediate vicinity of the axial fixing apertures than at a distance from these axial fixing apertures.

Abstract: Disclosed herein are components for millimeter-wave communication, as well as related methods and systems.

Abstract: A ceramic waveguide filter, a radio unit, an antenna unit and a base station are disclosed. According to an embodiment, a ceramic waveguide filter comprises a body (1) that is made of a ceramic material and that has a plurality of resonators each including a blind hole (101). The blind holes (101) of two of the resonators open at a first surface of the body (1) and extend toward an opposite second surface of the body (1). Capacitive coupling between the two resonators is achieved by a coupling structure (201) on/in a substrate (2), to which the body (1) is attached at the side of the second surface.

Abstract: In one embodiment, a method of matching an impedance is disclosed. An impedance matching network is coupled between a radio frequency (RF) source and a plasma chamber. The matching network includes a variable reactance element (VRE) having different positions for providing different reactances. The RF source is subject to a power control scheme to control a power delivered to the matching network. Based on a determined parameter, a new position for the VRE is determined to reduce a reflected power at the RF input of the matching network. The VRE is altered to the new position while the power control scheme is altered.

Abstract: A metallized dielectric waveguide filter includes an upper metallized dielectric waveguide having a plurality of upper resonant cavities, the upper metallized dielectric waveguide comprising an upper dielectric block having metallized outer walls, and a lower metallized dielectric waveguide having a plurality of lower resonant cavities, the lower metallized dielectric waveguide comprising a lower dielectric block having metallized outer walls. A first of the upper resonant cavities is operatively connected to a first of the lower resonant cavities via at least one coupling window. A first slot having metallized walls is provided in a portion of the upper dielectric block that is part of the first of the upper resonant cavities.

Abstract: 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.

Abstract: A RF dielectric filter comprising a block of dielectric material including top and bottom exterior longitudinal surfaces and side exterior surfaces covered with a layer of conductive material. RF signal input/output pads are located at opposed ends of the block. Each of the RF signal input/output pads comprises a strip of conductive material bridging between the bottom exterior surface and the side exterior surface. A strip or region of dielectric material surrounds all the sides of the elongate strip of conductive material except for one end of the strip of conductive material on the side exterior surface which is in a direct unitary coupling relationship with the remainder of the conductive material on the side exterior surface. In one embodiment, the strip or region of dielectric material is generally U-shaped and can vary in width.

Abstract: 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.

Abstract: A single-layer cross-coupling filter includes a cavity in which a receiving space is formed; an integrally formed resonant structure installed in the receiving space; and at least one partition wall. The resonant structure includes at least two rows of resonant units distributed along a signal transmission path. The at least two rows of resonant units are located in a same plane of the receiving space, and each row of the resonant units includes a plurality of resonators. The resonators on a same row are coupled and connected to form signal transmission, and at least two adjacent resonators in different rows are coupled and connected to realize cross-coupling.

Abstract: Provided is a process for manufacturing magnetically tunable nano-resonators. The nano-resonators comprise nanoparticles of a crystalline magnetic material embedded into cavities of a substrate.

Abstract: Disclosed herein are embodiments of a wide bandwidth attenuator circuit having a tunable gain and tunable input impedance. In some embodiments, the wideband attenuator circuit comprises a serial capacitor shunted to ground by a plurality of circuit slices that are connected in parallel and switchably coupled to the output node of the attenuator. Each circuit slice has a tunable resistor that can be set to a conductive state (“enabled”) or a high impedance state (“disabled”) The number of enabled circuit slices that are connected in parallel may be used to program the attenuator gain and the attenuator impedance.

Abstract: Waveguide device for guiding a radio frequency signal at a given frequency f, the device including: a core manufactured by additive manufacturing and including side walls with inner and outer surfaces, the inner surfaces delimiting a waveguide channel, wherein a cross-section of the channel 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.