Abstract: Antenna structures and assemblies for use in RADAR sensor assemblies and the like. In some embodiments, the assembly may comprise a feed waveguide comprising one or more feeding slots and a parallel plate waveguide operably coupled with the feed waveguide such that each of the one or more feeding slots of the feed waveguide is configured to inject electromagnetic energy into the parallel plate waveguide. A plurality of radiating slots may be formed in a plurality of rows and/or columns extending away from the feed waveguide to deliver electromagnetic energy out of the antenna assembly.

Abstract: A waveguide assembly for a radio frequency (RF) signal network can include a plurality of waveguides, wherein at least two of the plurality of waveguides are integrally formed with each other. A satellite payload can include the waveguide assembly, a method of manufacturing a waveguide assembly, and a method of manufacturing a signal network. Also provided is a waveguide connector having a flange, and a plurality of ports, wherein the flange can couple to a further waveguide connector, each port of the plurality of ports being configured to interface with a respective waveguide.

Abstract: A filter includes a waveguide formed in a dielectric surrounded by a conductor wall. The conductor wall includes at least one control wall protruding toward an inner side of the waveguide. The at least one control wall includes an end portion in a protruding direction of the at least one control wall and a central portion in the protruding direction. The end portion includes a wall portion of which wall thickness is different from the central portion.

Abstract: The present invention features a waveguide transition. A waveguide transition is used to join two dissimilar segments of waveguide, in this case coplanar waveguide to rectangular waveguide, and vice-versa. Care taken during the design of the waveguide transition ensures that the reflection of electromagnetic waves, which may be traveling along the coplanar waveguide segment and toward the waveguide transition and subsequent rectangular waveguide segment, is minimized.

Abstract: A dual-polarized antenna array for a one-dimensional (1D) active electronically steerable array (AESA) includes first and second arrays of open-ended waveguide elements interleaved with one another, each array including a plurality of corporate networks extending transverse to a scan plane SP and having a series of the elements spaced transversely of the scan plane, and wherein each of element is coupled to a respective corporate network by a waveguide twist and oriented oblique to the scan plane. The waveguide elements of one array are oriented orthogonal to the waveguide elements of the other array.

Abstract: An antenna array system (“AAS”) for directing and steering an antenna beam is described in accordance with the present disclosure. The AAS may include a feed waveguide having a feed waveguide length, at least two directional couplers in signal communication with the feed waveguide, at least two pairs of planar coupling slots along the feed waveguide length, and at least two horn antennas.

Abstract: A directional coupler (100) comprises two hollow bodies (200, 201) forming two waveguide portions. Each hollow body has an open end arranged at a first side (10) of the hollow body and another open end arranged at a second side (20) of the hollow body opposite to the first side in a longitudinal direction (30) of the hollow body. The hollow body has a first cross section perpendicular to the longitudinal direction. A second cross section along the longitudinal direction defines a first plane of propagation of the electric field. The two waveguide portions have a common wall along the longitudinal direction (30) forming a septum (400) between the two waveguide portions on a second plane orthogonal to the first plane. The septum has an aperture (410) for coupling the two waveguide portions. The aperture has a shape comprising a part (420) slanted with respect to the longitudinal direction.

Abstract: The present disclosure relates to a waveguide fed open slot antenna. In some examples, the antenna comprises a waveguide section, a slot, a matching load, a waveguide bottom extension, and a vertical metal wall. The waveguide section can be in the form of a rectangular waveguide or a substrate integrated waveguide (SIW). The slot can comprise a rectangle, with one of its long sides abutting the top surface of the waveguide section, and another long side abutting the matching load, while the two short sides do not connect any metal. The waveguide bottom extension can be rectangular. The end of the waveguide bottom extension and the edge of the matching load on the side close to the open slot can be connected together by the vertical metal wall. In this way, the slot can be excited.

Abstract: Aspects of the subject disclosure may include, for example, a waveguide system including a circuit disposed on a printed circuit board (PCB), the PCB coupled to an outer surface of a cable, and the circuit facilitating generation, via a radiating element, electromagnetic waves, and a coupler that facilitates inducing propagation of the electromagnetic waves along the cable without requiring an electrical return path, wherein the coupler is not coaxially aligned with the cable. Other embodiments are disclosed.

Abstract: An integrated device comprises a horn antenna with an antenna waveguide feed, a waveguide transition element comprising a first end connected to the antenna waveguide feed and second end, and an orthomode transducer comprising a common waveguide connected to the second end of the waveguide transition element and at least two separate waveguides. The orthomode transducer is adapted to couple at least two orthogonal linear polarized fields into the common waveguide of the orthomode transducer with the aid of the at least two separate waveguides of the orthomode transducer and/or vice versa. The horn antenna is preferably adapted to support at least two waveguide modes corresponding to the at least two orthogonal linear polarized fields. The integrated device is preferably manufactured in at least two separate blocks such that each part of the at least two piece assembly is constructed as external protrusions and/or holes and/or partial holes.

Abstract: A transmitter/receiver for use in a dielectric logging tool. The transmitter/receiver generally includes a housing, a septum, a first antenna, and a second antenna. When operated as a transmitter, a first and second electromagnetic signal are emitted by the first and second antenna, respectively. The housing and septum are shaped to combine the first and second electromagnetic signals into a combined signal having varying orientations depending on the phase difference between the first and second electromagnetic signals. When operated as a receiver, an incoming electromagnetic signal is divided into a first and second component signal. The first and second component signals are directed to the first and second antennas, respectively, where they are converted into first and second electrical signals.

Abstract: A directional coupler includes: a first waffle-iron ridge waveguide extending from one end to other end; a second waffle-iron ridge waveguide extending from one end to the other end; a first bypass waveguide connecting a first site of the first waffle-iron ridge waveguide and a first site of the second waffle-iron ridge waveguide; and a second bypass waveguide connecting a second site of the first waffle-iron ridge waveguide and a second site of the second waffle-iron ridge waveguide.

Abstract: Structures including waveguide bends, methods of fabricating a structure that includes waveguide bends, and systems that integrate optical components containing different materials. A first waveguide bend is contiguous with a waveguide, and a second waveguide bend is spaced in a vertical direction from the first waveguide bend. The second waveguide bend has an overlapping arrangement with the first waveguide bend in a lateral direction.

Abstract: Waveguide-to-waveguide couplers, systems that include waveguide-to-waveguide couplers, and methods of fabricating waveguide-to-waveguide couplers. A first waveguide is coupled to a first waveguide taper, and a second waveguide is coupled to a second waveguide taper. The first waveguide and the first waveguide taper are comprised of silicon, and the second waveguide and the second waveguide taper are comprised of silicon nitride. The second waveguide and the second waveguide taper are arranged in a vertical direction over the first waveguide and the first waveguide taper.

Abstract: Aspects of the subject disclosure may include, for example, an apparatus including a waveguide, an antenna, and a transmitter. The transmitter can facilitate transmission of first electromagnetic waves via the antenna, the first electromagnetic waves having a fundamental mode. The waveguide can facilitate propagation of the first electromagnetic waves at least in part on a surface of the waveguide. The waveguide can be positioned at a location that enables the first electromagnetic waves to induce second electromagnetic waves having fundamental and non-fundamental modes that propagate on a surface of a transmission medium. Other embodiments are disclosed.

Abstract: A system for power smoothing in power distribution and methods are provided. In one embodiment, a power multiplying network is provided that comprises a multiply-connected, velocity inhibiting circuit constructed from a number of lumped-elements. The power multiplying network is coupled to a power distribution network. The power multiplying network is configured to store power from and supply power to the power distribution network.

Abstract: A multimode directional coupler is provided. In some embodiments, the multimode directional coupler is configured to receive a primary signal and a secondary signal at a first port of a primary waveguide. The primary signal is configured to propagate through the primary waveguide and be outputted at a second port of the primary waveguide. The multimode directional coupler also includes a secondary waveguide configured to couple the secondary signal from the primary waveguide with no coupling of the primary signal into the secondary waveguide. The secondary signal is configured to propagate through the secondary waveguide and be outputted from a port of the secondary waveguide.

Abstract: A power directional coupler is described which comprises two hollow conductors and a separation wall. Said separation wall has a coupling portion which comprises several holes which are arranged in said separation wall such that a high hole-wall relation is obtained, ensuring a good coupling at a small size of said power directional coupler. Further, a combiner and a method for manufacturing said power directional coupler and a combiner are described.

Abstract: A directional coupler is described comprising two housing parts which define at least two hollow conductors and a separation wall positioned between both hollow conductors. Said separation wall comprises several holes ensuring a coupling of the at least two hollow conductors. Said several holes are arranged in two rows in an alternating manner such that a galvanic connection of both housing parts is provided between each neighbored holes. Further, a combiner is described.

Abstract: A semiconductor structure is disclosed. The semiconductor structure includes: a substrate having a first side and a second side opposite to the first side; an interconnect structure disposed on the first side, the interconnect structure including a dielectric layer, and a first conductive member and a second conductive member within the dielectric layer; a waveguide disposed between the first conductive member and the second conductive member within the dielectric layer, the waveguide including a first waveguide layer, a second waveguide layer and an adhesive layer between the first waveguide layer and the second waveguide layer; a first die disposed at the first side and over the interconnect structure and electrically connected to the first conductive member; and a second die disposed at the first side and over the interconnect structure and electrically connected to the second conductive member. An associated method for fabricating the same is also disclosed.

Abstract: Aspects of the subject disclosure may include, for example, a system for receiving telemetry information from an apparatus that induces electromagnetic waves on a wire surface of a wire of a power grid for delivery of communication signals to a recipient communication device coupled to the power grid, and detecting a condition from the telemetry information that is adverse to a delivery of the communication signals to the recipient communication device. Other embodiments are disclosed.

Abstract: In a directional coupler, a rectangular waveguide includes a second narrow wall and has a width varying part resulting from the second narrow wall protruding toward a first narrow wall, the width varying part including at least a portion of an opening, the protruding part protruding by a protrusion amount larger at the center of the width varying part than at both ends thereof.

Abstract: A dielectric waveguide coupling system for launching and extracting guided wave communication transmissions from a wire. At millimeter-wave frequencies, wherein the wavelength is small compared to the macroscopic size of the equipment, transmissions can propagate as guided waves guided by a strip of dielectric material. Unlike conventional waveguides, the electromagnetic field associated with the dielectric waveguide is primarily outside of the waveguide. When this dielectric waveguide strip is brought into close proximity to a wire, the guided waves decouple from the dielectric waveguide and couple to the wire, and continue to propagate as guided waves about the surface of the wire.

Abstract: Industrial motor control apparatus and techniques are presented for mitigating incident energy associated with an internal arcing. Interior enclosure surfaces and/or surfaces of electrical components are provided with textures and/or coatings which may be non-reflective with respect to visible and/or infrared light in order to redirect incident energy associated with internal arcing conditions. The electrical components are also arranged so as to substantially minimize the percentage of back wall exposure, and filler material and/or tile structures may be mounted within the enclosure, which may be non-reflective and/or have textured surfaces or coating layers to mitigate incident arcing energy. In addition, baffles or barriers may be provided within the enclosure to redirect or absorb incident energy from internal arcing.

Abstract: Methods, systems, and devices are described that include one or more septum features to improve performance of a waveguide device. In particular, the septum features may be utilized within a polarizer section of a polarizer device such as a septum polarizers. The septum feature(s) may be a ridge. When a plurality of septum features are employed, the location, size, shape and spacing may vary according to a particular design.

Abstract: A directional coupler includes rectangular waveguides each including: a pair of protruding sections which are provided on a first narrow wall or a second narrow wall, which are provided symmetrically with respect to an opening, and which protrude from one of the first and second narrow walls toward the other; and other protruding section which protrudes from the second narrow wall toward the opening.

Abstract: A microwave component of cavity type includes an integral cavity and a microwave network circuit disposed in the cavity. The cavity has multiple enclosing walls and a chamber defined by said multiple enclosing walls. The chamber is intended for accommodating the microwave network circuit therein. A wiring slot is defined in at least one of the enclosing walls, and at least one first through hole extended through the chamber is provided on each wiring slot. The microwave component of cavity type features small size, simple structure, and wide application. Furthermore, cost may be reduced, batch production may be achieved, use of fasteners such as screws is avoided, and the passive inter-modulation products caused by fasteners are eliminated, as the microwave component is secured without any screws.

Abstract: The present disclosure relates to a phase shifter, an accelerator, and an operating method therefor. The phase shifter comprises a rotating part having a first hollow structure, the first hollow structure having a first cavity, a distance between a circumference of the cross section of the first cavity and a rotation center of the rotating part changing periodically and continuously in a peripheral direction, such that when the rotatory part rotates, a phase shift occurs between two adjacent microwave pulses at an outlet of the phase shifter. The operating method comprises transmitting a microwave pulse within the accelerator at a repetitive frequency v Hertz; the driving devices drives the rotating part to rotate at a rotation speed of n RPM, wherein n=15v*m, m is an odd number, 1, 3, 5 . . . , such that when transmitting a microwave pulse each time, the long axis of the oval cross section of the first cavity of the rotatory part is rotated to a horizontal or vertical state.

Abstract: A waveguide assembly system includes a fixed port, a sliding port, and a transmission path from the fixed port to the sliding port. The transmission path includes a waveguide assembly that includes a first minor face corresponding to the fixed port, a first major face that includes a recess extending from the first minor surface towards the fixed port. The waveguide assembly system also includes a port assembly with a first major surface disposed opposite to the first major surface of the waveguide assembly. The port assembly includes at least one port having a first opening on the first major surface of the port assembly and a second opening on a second major surface of the port assembly. The port assembly includes one or more stubs positioned to impede electromagnetic energy propagation beyond a specified distance within the port tab assembly.

Abstract: An antenna system includes a ground plane, a microstrip-line coupler, a metal cover, and a main antenna. The microstrip-line coupler has a first input port, a second input port, a first output port, and a second output port. The metal cover is disposed above the microstrip-line coupler and coupled to the ground plane. The main antenna is coupled to the first output port and the second output port of the microstrip-line coupler. The metal cover is configured to reduce the interference from the microstrip-line coupler and to enhance the gain of the main antenna.

Abstract: A folded corrugated substrate integrated waveguide is disclosed.

Abstract: An open waveguide antenna for a radio frequency identification reader includes a conductive annular waveguide concentric about an axis and configured for operation within an operating frequency band. A radiating slot is formed in at least one wall of the waveguide is also concentric about the axis. An odd-multiple of ports are electrically coupled to the annular waveguide, where the ports are equally spaced around the waveguide at a spacing between adjacent ports of one-half of a guided wavelength at a center frequency of the operating band. A second waveguide, smaller than the first, can also be incorporated. The second waveguide can have a different slot arrangement and fewer ports. The rectangular waveguides can operate in a non-transverse electromagnetic mode, and the ports can be individually driven to beamform the radiated signal of the antenna.

Abstract: A transmission line comprising a transmission medium defined by a plurality of dielectric layers, wherein the dielectric layers include a first layer having a first dielectric constant, a second layer having a second dielectric constant and a third layer having a third dielectric constant being less than the first and second dielectric constant.

Abstract: A radio detection and ranging (RADAR) system that emits radio signals from a transmit antenna and receives reflected signals with a receive array of antenna elements. The signals received at the receive array are conveyed through a plurality of waveguide couplers. The plurality of waveguide couplers receives signals from each antenna element at a plurality of antenna ports and outputs signals from a plurality of output ports. The waveguide couplers convey signals such that the output ports receive signals from associated sub-array sets of the antenna ports. The waveguide couplers have an overlapping arrangement such that a given sub-array set of antenna ports overlaps with a neighboring sub-array set of antenna ports by including at least half of the antenna ports in the neighboring sub-array set.

Abstract: A dielectric-based nonlinear transmission line (NLTL) coupled to an adjacent waveguide. Energy in an input pulse to the nonlinear transmission line is concentrated into an electromagnetic shock or a series of soliton-like oscillations by the nonlinear properties of the NLTL. Energy from the electromagnetic shock or the soliton-like oscillations are transferred into the waveguide. A plate of the NLTL coupled to the waveguide can include an aperture or a series of apertures. Energy from the electromagnetic shock or the soliton-like oscillations can then be transferred into waveguide via an aperture or apertures in such a way that forward and/or backward guided electromagnetic waves are generated in the waveguide. The waveguide can contain at a nonlinear magnetic material, a dielectric material, a slow wave structure, or a metamaterial. The NLTL can include nonlinear dielectric elements such as a periodic array interspersed with linear dielectric elements.

Abstract: A multimode directional coupler is provided. In some embodiments, the multimode directional coupler is configured to receive a primary signal and a secondary signal at a first port of a primary waveguide. The primary signal is configured to propagate through the primary waveguide and be outputted at a second port of the primary waveguide. The multimode directional coupler also includes a secondary waveguide configured to couple the secondary signal from the primary waveguide with no coupling of the primary signal into the secondary waveguide. The secondary signal is configured to propagate through the secondary waveguide and be outputted from a port of the secondary waveguide.

Abstract: A power combiner/distributor including first, second, and third waveguides connected with each other in a planar shape, and for either one of distributing power inputted from the first waveguide to the second and third waveguides and combining powers inputted from the second and third waveguides to input the combined power to the first waveguide is provided. The power combiner/distributor includes a branch circuit connected with the first waveguide and for branching a transmission path formed in the first waveguide into first and second transmission paths, and decoupling circuits connected with the branch circuit and also to the second and third waveguides, respectively, the decoupling circuits having a power losing resonator coupled to the second and third waveguides, resonating within an operation frequency band, and causing a power loss.

Abstract: A directional coupler arrangement comprising an air waveguide and a coupler port having a coupler line arranged inside the air waveguide. A method for producing a directional coupler arrangement comprising forming an air waveguide and forming a coupler port having a coupler line arranged inside the air waveguide is also disclosed.

Abstract: A distributed differential coupler, including a first conductive line and two second conductive lines coupled to the first one, each second conductive line including two conductive sections electrically in series, their respective junctions points being intended to be grounded.

Abstract: An apparatus includes: an electromagnetic waveguide and an iris structure providing an iris in the electromagnetic waveguide. The iris structure defines an iris hole. The apparatus further includes an electric field rotation arrangement configured to establish a 2N-pole electric field around a circumference of the iris hole, wherein N is an integer which is at least two. The electric field rotation arrangement may include at least four iris slots, each in communication with the iris hole, wherein a first one of the iris slots is further in disposed at a first side of the iris hole and a second one of the iris slots is disposed at a second side of the iris hole which is opposite the first side.

Abstract: A system and method for distributing the power of an electromagnetic signal is presented. In one embodiment, a power distribution cavity includes, a planar cavity, input ports and output ports. The planar cavity is formed with a metallic sheet in the shape of a star pattern with a plurality of elongated star arms extending from a round center portion of the metallic sheet. The input ports are attached to the round center portion of the metallic sheet for receiving an input signal. The signals entering the cavity from the input ports creating independent resonant modes within the cavity that combine producing a tapered aperture distribution of signals at the output ports. The output ports are attached near to the outward ends of the elongated star arms. The planar cavity is thus configured to propagate electromagnetic fields at the output ports that were excited within the cavity by the input ports.

Abstract: A rotating data transmission device for computer tomographs, for transmission from a rotating part to a stationary part that is rotatably supported relative to the rotating part, comprises at least one dielectric waveguide assigned to the rotating part, at least one first line coupler for coupling electrical signals into the at least one dielectric waveguide, and at least one coupler assigned to the stationary part for tapping electrical signals from the at least one dielectric waveguide. The dielectric waveguide is divided into at least two segments of approximately the same length, signals are coupled into the segments of the dielectric waveguides through a first line coupler to propagate in opposite directions, and ends of the segments distant from the line coupler are provided with terminations.

Abstract: A coupling slot 10 provided in a wide wall shared by a first rectangular waveguide 8 and a second rectangular waveguide 9 arranged by stacking is formed by directing a longitudinal direction of the coupling slot 10 to a tube axial direction, and a matching conductor 11 projecting to a waveguide near the coupling slot 10 is provided on one sidewall of the second rectangular waveguide 9. A process of providing the matching conductor 11 is easy, a structure that can be manufactured at low cost is obtained, and a power distribution ratio can be set at an arbitrary ratio.

Abstract: A waveguide coupler is provided with a trough portion with a first trough and a second trough. A coupling slot between the inner sidewalls of the first and second troughs communicates between the first trough and the second trough. A cover closes the first trough and the second trough to form first and second waveguides. The cover includes a protrusion surface with protrusions extending into the first trough and the second trough. The protrusions form a stepped ridge with a plurality of steps in height, if desired, lateral position. The steps are provided with a maximum inward extension and a minimum lateral distance from the coupling slot at a center step proximate a center of the coupling slot. The coupler is selectable between a high coupling level and a low coupling level by exchanging the cover applied to the trough portion between a flat surface and the protrusion surface.

Abstract: Provided is a phase shifter using a substrate integrated waveguide (SIW). The phase shifter includes: a substrate; and a waveguide integrated on the substrate, wherein the waveguide includes an input port, an out port, two columns of via walls which are separated by a width of the waveguide and are arranged parallel to each other, and either a plurality of air holes which are formed to shift a phase of a signal between the input port and the output port or a plurality of rods, each including an air hole and a dielectric material inserted into the air hole.

Abstract: A coupler assembly includes a monolithic body (5) with a bore (11) along a longitudinal axis. A coupler PCB chamber (7) with at least one coupler slot(s> (9) communicates between the PCB chamber and the bore. A coupler printed circuit board (15) is seated in the coupler PCB chamber. At least two couplers (17) are mounted upon the printed circuit board aligned generally parallel with the at least one coupler slot(s). A first side of each coupler may be coupled to a terminating load and a second side of each coupler may be coupled to a connection interface.

Abstract: Disclosed herein is a transmission apparatus including a first transmission block configured to modulate a carrier-wave signal having a predetermined frequency on the basis of a first input signal, thereby outputting a first transmission signal; and a second transmission block configured to modulate a carrier-wave signal having a predetermined frequency on the basis of a second input signal, thereby outputting a second transmission signal; wherein a first input point for inputting the first transmission signal outputted from the first transmission block into a waveguide and a second input point for inputting the second transmission signal outputted from the second transmission block into the waveguide are shifted by a distance for providing a predetermined phase difference between the first transmission signal and the second transmission signal.

Abstract: A bus interconnect device is provided comprising a parallel plate waveguide for coupling together a plurality of devices. This provides an efficient and flexible approach for providing interconnect functionality within a data processing apparatus.

Abstract: A waveguide coupler is provided with a trough portion with a first trough and a second trough. A coupling slot between the inner sidewalls of the first and second troughs communicates between the first trough and the second trough. A cover closes the first trough and the second trough to form first and second waveguides. The cover includes a protrusion surface with protrusions extending into the first trough and the second trough. The protrusions form a stepped ridge with a plurality of steps in height, if desired, lateral position. The steps are provided with a maximum inward extension and a minimum lateral distance from the coupling slot at a center step proximate a center of the coupling slot. The coupler is selectable between a high coupling level and a low coupling level by exchanging the cover applied to the trough portion between a flat surface and the protrusion surface.

Abstract: An apparatus has an antenna configured to receive transmitted digital data, wherein the data comprises circular polarity (CP) and linear polarity (LP) format signals. The apparatus also has a waveguide coupled to the antenna and configured to propagate: 1) a first component of the CP format signal which is received; 2) a second component of the CP format signal which is received, said second component being substantially orthogonal to said first component; and 3) the LP format signal which is received. The apparatus further has one or more phase adjusters configured to allow adjustment to be made to match a phase of the first and second components of the CP format signal. The apparatus also has one or more amplitude adjusters configured to allow adjustments to be made to match an amplitude of the first and second components of the CP format signal.