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: 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: 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: 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 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 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 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: 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.

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: A circulator comprising a grounding plane including a first side and a second side, a magnet disposed on the first side of the grounding plane, a ferrite-based disk disposed on the second side of the grounding plane, and a conductor disposed on a side of the ferrite-based disk opposing the grounding plane. The conductor includes an elongate portion and the elongate portion has a distal end section projecting inwardly adjacent to a side of the magnet opposing the grounding plane. The circulator comprises a circulator housing including a plurality of side portions. The side portions have a first section and a second section, the second section extending further around a periphery of the housing than the first section such that a gap between neighboring first sections is wider than a gap between neighboring second sections.

Abstract: A duplexer includes a cavity resonator defining an opening covered by an RF plate. The RF plate defines an opening through which a pass-band tuning pipe extends and is secured thereto. A collar is attached to one end of the pipe, and at least one steel set screw extends into the interior of the collar, the at least one end having a soft (e.g., brass) tip. A tuning plunger is slidingly positioned within the pass-band tuning pipe. A rod is attached to a first end of the tuning plunger and extends through the collar, the rod being fabricated from a material harder than the tip of the at least one set screw. The at least one set screw is configured for tightening down on the rod to secure the rod and tuning plunger in place. A trimmer capacitor is positioned in the RF plate.

Abstract: Provided is an analog front-end receiver including: a first equalizer including a first block switch configured to receive a first differential signal through a first node, and configured to block the first differential signal in a first operation mode; a second equalizer including a second block switch configured to receive a second differential signal through a second node, and configured to block the second differential signal in the first operation mode; a terminating resistor provided between the first node and the second node, and configured to receive the first differential signal via the first node, and receive the second differential signal via the second node; and a low pass filter configured to receive a third differential signal converted by the terminating resistor from the first differential signal, and configured to receive a fourth differential signal converted by the terminating resistor from the second differential signal.

Abstract: A high frequency filter A1 has frequency characteristics such that the amount of attenuation for an input electrical signal is smaller in a first frequency band f1 than in a second frequency band f2. The high frequency filter A1 is provided with a dielectric elastomer transducer 1 that includes a dielectric elastomer layer 13 and a pair of electrode layers 14 sandwiching the dielectric elastomer layer 13. The frequency characteristics are variable by the dielectric elastomer transducer 1. This configuration provides a high frequency filter having frequency characteristics that are variable and suitable for a lightweight and compact configuration.

Abstract: A method of fabricating a portion of magnetically controlled signal distribution device includes receiving a substrate and screen printing a low-k dielectric spacer over an upper surface of the surface from a low-k dielectric paste. The method also includes firing the substrate after the spacer has been screen printed thereon, forming an adhesive layer on top of the spacer and securing a magnet to a top of the adhesive layer.