Abstract: An antenna module includes feed elements each having a flat plate shape and a ground electrode arranged opposite the feed elements. The feed element radiates a radio wave of a first frequency band. The feed element radiates a radio wave of a second frequency band that is higher than the first frequency band. In a plan view of the feed element, the distance from the center of the feed element to an end portion of the ground electrode in a first direction is shorter than or equal to ½ of a free space wavelength of a radio wave radiated from the feed element. A feed point of the feed element is arranged at a location shifted in a second direction from the center of the feed element, and the second direction is different from the first direction.

Abstract: Example embodiments relate to corrugated radomes for protecting and concealing components of radar units. An example radar system may include a radar unit that includes at least one antenna having a radiation pattern. The radar unit is configured to transmit a radar signal based on the radiation pattern and receive radar signals. In addition, the radar system further includes a radome located in a direction of transmission of the radiation pattern. Particularly, the radome includes a stepped surface having at least one step that includes a height equal to one-quarter of a wavelength at a frequency of operation of the radar unit. The least one step is positioned on the radome such that the at least one step causes deconstructive interference of reflections of the transmitted radar signal caused by the radome.

Abstract: An apparatus is provided for generating a transmission wave. The apparatus includes a plurality of antennas and a plurality of signal generators. The plurality of antennas has polarization diversity. The plurality of signal generators are each coupled to one of the antennas and configured to generate a continuous twisted wave by driving each of the antennas using independent, coordinated, and distinct sinusoidal waves, and having a twist frequency and a carrier frequency, the twist frequency lower than the carrier frequency. A method is also provided.

Abstract: A cross dipole antenna element may include a flexible substrate, a first pair of dipole arms disposed on the flexible substrate, a second pair of dipole arms disposed on the flexible substrate, a plurality of feed points disposed at a center portion of the flexible substrate and between the first and second pairs of dipole arms, a metallic plate forming a ground plane for the antenna element, and a dielectric spacer disposed between the center portion of the flexible substrate and the metallic plate. The first and second pairs of dipole arms may be operably coupled to the metallic plate at distal ends of the first and second pairs of dipole arms relative to the center portion.

Abstract: An amplifier circuit couples one or more selectable input ports to one or more selectable output ports. The circuit includes N input transistors and M output transistors. Each input transistor has its base coupled to a respective input port node, its emitter coupled to ground, and its collector connected to an intermediate node. Each output transistor has its base coupled to a bias node, its emitter connected to the intermediate node, and its collector coupled to a respective output port nodes. Each input transistor enables the respective input port node when its base is biased. Each output transistor enables the respective output port node when its bias node is asserted. The base of the input transistor for each enabled port is biased to provide a quiescent current I0*m/n through that input transistor, where m is the number of enabled output ports and n is the number of enabled input ports.

Abstract: Antennas having a multi-beam (e.g., dual beam, etc.) launcher and methods for using the same are described. In some embodiments, the antenna comprises: an array of antenna elements; two parallel plate waveguides coupled to the array of antenna elements, the two parallel plate waveguides sharing a common radial plane and arranged in a stacked configuration; and a dual feed launcher to launch first and second TEM waves into the two parallel plate waveguides, the first and second TEM waves being different and being simultaneously launched in the two parallel plate waveguides.

Abstract: Embodiments of the present disclosure relate to improvement on isolation between antennas and provide an antenna, an antenna array comprising the antenna and a communication device comprising the antenna array. The antenna comprises an improved feeding network. The feeding network comprises: first and second ports each configured to transmit and/or receive a signal; first and second feed lines coupled in parallel between the first and second ports and formed into a continuous conductive loop; and first and second feeders each arranged to couple to a first node on the first feed line and to a radiating element of the antenna, and third and fourth feeders each arranged to couple to a second node on the second feed line and to the radiating element.

Abstract: A radio frequency (RF) polarizer includes a frame having a first side and a second side spaced apart from and opposite the first side, a first polarizer substrate attached to the first side and including a plurality of conductor patterns formed on a surface of the first polarizer substrate, and a second polarizer substrate attached to the second side. The first polarizer substrate and the second polarizer substrate are attached to the first side and the second side, respectively, under tension.

Abstract: Provided is an electric device including a display panel, and a first antenna disposed on the display panel and including a first patch part, a first transmission part, and a first additional transmission part, wherein the first transmission part faces a first side of the first patch part extending along a first cross direction, is spaced apart from the first patch part, and is capacitively coupled to the first patch part, and wherein the first additional transmission part faces a second side of the patch part extending in a second cross direction crossing the first cross direction, is symmetrical about a line of symmetry with the first transmission part, and is spaced apart from the first patch part.

Abstract: A higher order Floquet-mode structure (HOFS) integrated meander line polarizer and radome including: a substrate including layers having a dielectric constant (dk) of 2.9; a HOFS including metal layers disposed in a first subset of the layers; and meander lines, to provide a phase shift and match, disposed in a second subset of the layers, wherein the substrate includes a low-cost material and the metal layers include a feature trace and gap widths of about 10 mils or greater.

Abstract: The disclosed antenna includes: a radiating element disposed in a radiating plane transverse to an axis of the antenna; a reflecting plane, which is transverse to the axis, the radiating plane being located at a predetermined height above the reflecting plane; and a substrate, interposed between the radiating plane and the reflecting plane, and having a constant thickness. This antenna is characterized by a local relative electrical permittivity of the substrate that is a function of the radius, i.e. the distance to the axis, and a height, i.e. a distance to the reflecting plane, the local relative electrical permittivity being, at constant height, increasing as a function of the radius, and, at constant radius, increasing as a function of the height at least for a portion of the substrate in the vicinity of the reflecting plane.

Abstract: An antenna system includes a first antenna operational to transmit a first radio-frequency signal, a second antenna operational to receive a second radio-frequency signal and receive the first radio-frequency signal, a first electromagnetic polarizer disposed between the first antenna and the second antenna and operational to change a polarization of the first radio-frequency signal, a second electromagnetic polarizer disposed between the first electromagnetic polarizer and the second antenna and operational to further change the polarization of the first radio-frequency signal, and a conductive ground plane disposed on a ground side of the first antenna and the second antenna. The conductive ground plane defines a gap between the first antenna and the second antenna. The gap extends under the first electromagnetic polarizer. The gap extends under the second electromagnetic polarizer. A horizontal component of the second polarization of the first radio-frequency signal is maintained across the gap.

Abstract: An electromagnetic absorption metamaterial having an upper surface in a working environment, comprising a periodic resonant unit array. The metamaterial is provided with a dielectric composite film on the upper surface and the film is obtained by laminating solid dielectric layers in different thickness proportions. Materials of said dielectric composite film are selected from at least two materials of silicon oxide, silicon nitride, aluminum oxide, magnesium fluoride and silicon. By selecting different types of dielectric films and laminating the dielectric films in certain proportions, the metamaterial of the present application can obtain a dielectric film having a refractive index between the maximum and minimum refractive index in selected media, thereby achieving more flexible and controllable modulation of surface lattice resonance.

Abstract: The present disclosure relates to a dual-polarized phased array antenna and a dual-polarized phased array weather radar. According to the dual-polarized phased array antenna, a plurality of dual-polarized row feeds are arranged on a horizontal cylindrical support surface to form a dual-polarized antenna in a horizontal cylindrical shape. This allows two polarized signals in a horizontal direction and a vertical direction to be simultaneously received and transmitted, and ensures digital multi-beam signals with constant beam bandwidth, antenna gain, and dual polarization performance. The dual-polarized phased array weather radar provided in the present disclosure uses the formed dual-polarized microstrip patch antenna or a dual-polarized waveguide slot antenna in the horizontal cylindrical shape. This can ensure consistency of weather detected at different scan angles, and improve the accuracy of weather target 3D construction.

Abstract: Various embodiments of an electronic device for matching an antenna impedance may include an antenna, a wireless communication module, an impedance matching module, and at least one processor, wherein the at least one processor is configured to: select a first index corresponding to an impedance of the antenna among a plurality of sampled indexes through a first measurement in which a tuning code of the impedance matching module is configured as a reference code; identify a use environment corresponding to the first index; select a second index corresponding to the impedance of the antenna among the plurality of sampled indexes through a second measurement in which the tuning code of the impedance matching module is configured as the reference code and as a ground code corresponding to the use environment; and adjust the impedance of the antenna based on a tuning code corresponding to the second index.

Abstract: A method of communicating between a transmitter and a receiver in a wireless communication system is provided. The method includes selecting a beamformer from a beamforming codebook. The method further includes transmitting a signal from antenna elements using the selected beamformer by adjusting a gain and a phase of the signal. The antenna elements correspond to an absolute value and an angle of a respective complex beamforming coefficient from the selected beamformer. The beamformer is a composite beam including a plurality of disjoint beam lobes, and each of the plurality of disjoint beam lobes covers a desired angular interval.

Abstract: Disclosed is a shaped horn in conjunction with a dielectric tube for enhanced aperture directivity that can achieve a near optimum efficiency. The shaped horn provides additional mode control to provide an improved off-axis cross-polarization response. The horn shape can be individually optimized for isolated horns or for horns in a feed array. The feed array environment can produce results that lead to a different optimized shape than the isolated horn. Lower off axis cross-polarization can result in improved efficiency and susceptibility to interference.

Abstract: An electronic device including a casing, a circuit board, a bracket, an antenna, and a protective member is provided. The casing has an accommodating space and a hole communicating with the accommodating space. The circuit board is disposed in the accommodating space. The bracket is disposed above the circuit board, and at least part of the bracket is located in the accommodating space and the hole. At least part of the antenna is disposed on a portion of the bracket extending out of the accommodating space. The protective member is disposed on at least one surface of the casing and covers the hole, the bracket, and the antenna.

Abstract: A radar device, for example for automotive applications, comprises a radar circuit, an antenna device and a signal processing device, wherein the radar circuit is configured to transceive a first antenna signal and a second antenna signal, wherein the first antenna signal occupies a first frequency band and the second antenna signal occupies a second frequency band that is separate from the first frequency band, wherein the antenna device is configured to transduce the first antenna signal via a first antenna of the antenna device and the second antenna signal via a second antenna of the antenna device, and wherein the signal processing device comprises a ranging module that is configured to jointly process the first and second antenna signal to determine a distance to a target object irradiated by the antenna device.

Abstract: Methods and devices for reading and programming a state of a switch device are presented. Reading of the state is provided by measuring a resistance of the switch via injection of a current. If a measured resistance does not correspond to a resistance of an expected state, then the switch is reprogrammed, and the state reread. The switch device may form part of a complex switch circuit that includes a combination of shunt and through switch devices. Currents injected into external loads coupled to the switch circuit increase accuracy in reading of the state. Further accuracy in reading of the state of a through switch device is provided by provision of a bypass path to a shunt switch device. The complex switch circuit may be implemented as a SPDT switch including two branches, each branch including a shunt and a through switch device. Several types of switch devices, such as phase-change material (PCM) devices may be implemented.

Abstract: Provided herein are various enhancements for antenna systems and directed radio frequency energy structures. In one example, an apparatus includes an antenna array comprising a plurality of antenna elements formed by waveguide structures embedded within a substrate and positioned about a longitudinal axis of the substrate to form at least two concentric ring arrangements of antenna elements. Apertures of the waveguide structures are configured to emit or receive radio frequency (RF) energy generally along the longitudinal axis. Feed elements are coupled to each of the waveguide structures on an end opposite of the apertures, and configured to couple the RF energy for the antenna array.

Abstract: A microcomponent massive MIMO array is presented. The microcomponent massive array includes a general purpose processor and an integrated power amplifier and transmitter device including a software defined radio (SDR) and a plurality of polar power amplifiers (PAs) disposed on a single integrated circuit, wherein the integrated power amplifier and transmitter device is in communication with the general purpose processor. The microcomponent massive MIMO array further includes an antenna array in communication with the integrated power amplifier and transmitter device.

Abstract: The invention provides for a broad band directional antenna (10) comprising a ground plane (12) having an axis (14) extending perpendicularly to the ground plane, an active radiator (13) which is axially spaced from the ground plane, a metamaterial ground plane assembly (16) and a conductive pillar (28.1) between the first conductive wall and the ground plane. The metamaterial ground plane assembly comprises a metamaterial ground plane (17), a first conductive wall (20) adjacent a periphery of the metamaterial ground plane, the first conductive wall having a bottom (22) and atop (24) and a second wall (26) comprising two mutually insulated conductive wall parts (26.1, 26.2) located spaced from and outside of the first conductive wall. The bottom of the first conductive wall is located between the ground plane and the metamaterial ground plane and the top of the first conductive wall is located beyond the active radiator.

Abstract: An antenna having a wedge plate-based waveguide with feed segmentation and a method for using the same are disclosed. In one embodiment, the antenna comprises an aperture having an array of radio-frequency (RF) radiating antenna elements and a segmented wedge plate radial waveguide comprises a plurality of wedge plates that form a plurality of sub-apertures, wherein each sub-aperture includes one wedge plate and a distinct subset of RF radiating antenna elements in the array, wherein each wedge plate of the plurality of wedge plates has a feed point to provide a feed wave for propagation through said each wedge plate for interaction with its distinct subset of RF radiating antenna elements in the array.

Abstract: An antenna element according to an exemplary embodiment includes a dielectric layer; and an antenna pattern formed in a mesh structure on the dielectric layer and including an irregularly-shaped edge. The antenna element according to the example is excellent in terms of the pattern visibility, while maintaining the antenna performance.

Abstract: This application provides a transmission absorbing structure and an antenna in-band characteristics test system, relating to design of microwave antennas for radar and communication systems. The transmission absorbing structure includes a coupling feed structure provided with coupling slots for energy coupling with a to-be-tested antenna, two equivalent electric wall structures parallel to each other, and two equivalent magnetic wall structures parallel to each other. The two equivalent electric wall structures and the two equivalent magnetic wall structures together enclose the coupling feed structure, and form a transverse electromagnetic mode (TEM) waveguide. The system includes a vector network analyzer, a to-be-tested antenna electrically connected to the vector network analyzer, and a transmission absorbing structure.

Abstract: An electromagnetic energy absorber comprising a thin electrically-conductive ground plane as a base. Dielectric layers are positioned over the ground plane and high impedance surface (HIS) as a top layer. The impedance layer can be formed by loading the lumped resistor to a metallic grating like an FSS (Frequency Selective Surface). An air-spacer between the substrates has replaced the problem of the large electrical thickness of the substrate with effective permittivity. Metamaterial structures enable control over the resonant frequencies, and performance is enhanced over a broad frequency band. In addition, two broadband reflective-type linear to orthogonal polarization converters are disclosed that provide improved bandwidth and angular stability performance.

Abstract: An apparatus and method for mitigating polarization mismatch in reflector antenna systems. A feed unit is configured to determine a polarization mismatch between a first polarization associated with a first wave and a second polarization associated with a reflector unit. The feed unit pre-distorts the first wave to achieve a compensated polarization for reducing and/or eliminating a polarization mismatch. The pre-distorted first wave having the compensated polarization is used to illuminate the reflector unit. A re-radiated wave is reflected by the reflector unit. Furthermore, the level of the re-radiated wave is increased as a result of the pre-distortion.

Abstract: A satellite communication device and a method therefor are disclosed. The satellite communication device includes a first processor that generates schedule data about a satellite communication asset, a second processor that is located on a mobile vehicle spaced apart from the first processor and generates a control signal based on the schedule data, and a mediator that dynamically switches a link between at least one antenna and at least one modem based on the control signal.

Abstract: An electronic device includes a display panel on which a display area and a peripheral area around the display area are defined, a patch part disposed on the display panel and including a first side and a second side, a first transmission part disposed on the display panel, facing the first side of the patch part, spaced apart from the patch part, and coupled with the patch part, and a second transmission part disposed on the display panel, facing the second side of the patch part, spaced a plurality of openings part from the patch part, and coupled with the patch part.

Abstract: A front end of a radar system is provided with a first front end apparatus and a second front end apparatus. A first transmit planar component and a first receive planar component in the first front end apparatus are arranged to be perpendicular to one another. A second transmit planar component and a second receive planar component in the second front end apparatus are arranged to be perpendicular to one another. A linear array of antennas is located along a second end of each planar component. Polarization of a first set of waves transmitted from the linear array of antennas of the first transmit planar component and polarization of a second set of waves transmitted from the linear array of antennas of the second transmit planar component are perpendicular to one another.

Abstract: An antenna structure and an antenna array are disclosed. The antenna structure includes first and second feeding traces, first to fourth vias and a radiator. The first feeding trace has a first meander portion that generates a 180-degree phase change along a length thereof at an operation frequency of the antenna structure. The second feeding trace has a second meander portion that generates a 180-degree phase change along a length thereof at the operation frequency of the antenna structure. The first and second vias are respectively coupled to two opposite points of the first feeding trace with respect to the first meander portion. The third and fourth vias are respectively coupled to two opposite points of the second feeding trace with respect to the second meander portion. The radiator coupled to the first to fourth vias. The antenna array includes antenna cells each with the antenna structure.

Abstract: A feed network is provided that includes a transmit section, a body section coupled to the transmit section, and a receive section coupled to the body section. The transmit section and the body section form a transmitter unit coupled to a first section of a core waveguide, wherein the first section of the core waveguide is a square waveguide. The body section and the receive section form a receiver unit coupled to a second section of the core waveguide, wherein the second section of the core waveguide is a circular waveguide.

Abstract: A twistarray reflector includes: a reflector having front reflecting surface comprising wires and a back reflecting surface, the front reflecting surface fabricated from the wires and composites where the wires are placed having an orientation at each point on the front surface to decompose an incident field into orthogonal components so that an electromagnetic reflected from the front surface when superposed with a phase-inverted electromagnetic field reflected from the back reflecting surface produces a net reflected electromagnetic field that is polarized in a specific vector direction with consistent phase.

Abstract: A septumless polarizer is an OMT polarizer which is formed without a traditional thin septum which bridges the gap from the first assembly half to the second assembly half when the polarizer is split in the zero-current region of the rectangular waveguides (RHCP and LHCP ports). The septumless polarizer utilizes a dual-axis-stepped feature, which is included in one half of the polarizer only, creates the illusion of a traditional thin septum and actually improves performance. A close-proximity fastener scheme is enabled along with a fully encompassing pressure lip and contact pressure risks are mitigated.

Abstract: A vehicular antenna device comprises: a directional antenna having a plurality of unit antenna elements arranged in a predetermined direction and thereby having upward directionality; and a radio wave diffusion structure installed vertically above the directional antenna so as to reflect radiated radio waves, which are radiated upward from the directional antenna, in the lateral direction such that the same are diffused omnidirectionally. The vehicular antenna device is applicable to 5G mobile communication, the same has omnidirectionality that a vehicular antenna is required to have, and the antenna structure can be made compact and simple.

Abstract: A method for aligning an antenna device to a peer antenna device is disclosed. The method includes receiving, by an alignment management computing device, first geolocation data and a first orientation data for the antenna device. A second set of geolocation data for the peer antenna device is received. A static vector is determined for aligning the antenna device to the peer antenna device based on the first geolocation data, the first orientation data, and the second geolocation data. A first set of instructions is provided for adjusting the position of the antenna device based on the static vector to align the antenna device to the peer antenna device. An articulated antenna device configured to operate in accordance with the method is also disclosed. An antenna alignment management computing device and a non-transitory computer readable medium for performing the alignment method are also disclosed.

Abstract: A patient monitoring device includes a signal transmission device configured to direct a signal transmission toward a target area and to receive reflected signals from the target area, and a signal analysis device having a processing device and at least one non-transitory computer readable data storage device storing instructions, that when executed by the processing device, cause the patient monitoring device to transmit signals, receive reflected signals, and determine a non-contact vital sign measurement based on data from the reflected signals.

Abstract: An integral waveguide device herein includes a polarizer component comprising a waveguide and a dielectric slab, the dielectric slab configured to change a polarization of a signal passing through the waveguide. The integral waveguide device also includes a feed horn for conveying signals between the waveguide and a parabolic antenna. The waveguide of the polarizer and the feed horn are manufactured as an integral component with the feed horn disposed at a first end of the waveguide.

Abstract: Aspects of the subject disclosure may include, for example, a polarization shifter including a lower substrate having disposed thereon first and second transmission lines for coupling to a feed network, an upper substrate having disposed thereon third and fourth transmission lines for respective communicative coupling to orthogonally-polarized elements of a radiating element, and a dielectric layer residing between the lower substrate and the upper substrate, the upper substrate being configured to mechanically couple to the radiating element, the dielectric layer coupling the first transmission line with the third transmission line and coupling the second transmission line with the fourth transmission line, the upper substrate being rotatable relative to the lower substrate to effect polarization adjusting for the radiating element to facilitate avoidance of interference or passive intermodulation (PIM). Other embodiments are disclosed.

Abstract: An antenna cover is used with an antenna for passing therethrough a radiation of the antenna in order to modify an antenna pattern of the antenna. The antenna cover includes a housing having a first surface and a second surface; and a plurality of through holes penetrating through the housing and extending from the first surface to the second surface. By way of adjusting distances between the plurality of through holes and/or adjusting sizes of the plurality of through holes, the antenna cover functions to adjust the radiation of the antenna from a first antenna pattern to a second antenna pattern.

Abstract: Aspects of the subject disclosure may include, for example, a polarization shifter including a lower substrate having disposed thereon first and second transmission lines for coupling to a feed network, an upper substrate having disposed thereon third and fourth transmission lines for respective communicative coupling to orthogonally-polarized elements of a radiating element, and a dielectric layer residing between the lower substrate and the upper substrate, the upper substrate being configured to mechanically couple to the radiating element, the dielectric layer coupling the first transmission line with the third transmission line and coupling the second transmission line with the fourth transmission line, the upper substrate being rotatable relative to the lower substrate to effect polarization adjusting for the radiating element to facilitate avoidance of interference or passive intermodulation (PIM). Other embodiments are disclosed.

Abstract: A lensed multi-beam base station antenna may include a plurality of linear arrays of radiating elements, a plurality of reflectors, a sidelobe suppressor, and a lens. Each array may include a plurality of radiating elements (e.g., two or more radiating elements) that extends forwardly from a planar section of a respective reflector. The sidelobe suppressor may comprise radiofrequency (RF) absorber material that absorbs energy that is emitted by a first of the arrays and that is directed toward a reflector underneath a second of the arrays. The sidelobe suppressor may comprise a RF choke that reduces the RF energy emitted by a first of the arrays that is directed toward a reflector underneath a second of the arrays.

Abstract: A microwave shielding plate and a cooking device are disclosed. The microwave shielding plate includes one or more conductive layers, a conductor is provided in each of the conductive layers, and two ends of the conductor are provided with wiring points, so that a shielding section covering the conductive layers is formed when the conductor is coupled into a conductive loop.

Abstract: The disclosed method for a communication satellite may include (1) simultaneously generating a first transmission beam to a first ground station and a second transmission beam to each of a plurality of second ground stations in sequence according to a schedule, (2) simultaneously receiving a third transmission beam from the first ground station and a fourth transmission beam from each of the second ground stations in sequence according to the schedule, (3) forwarding first data received via the third transmission beam to each of the second ground stations via the second transmission beam, and (4) forwarding second data received via the fourth transmission beam from each of the second ground stations to the first ground station via the first transmission beam. Various other methods and systems are also disclosed.

Abstract: A sensor assembly for detecting an object is disclosed. The sensor assembly includes at least one radar transmitter configured to emit transmitted radar waves having a first polarization. The sensor assembly also includes at least one radar receiver configured to receive the transmitted radar waves after reflecting from the object as reflected radar waves having a second polarization different than the first polarization and corresponding with a detection of the object relative to the sensor assembly. The at least one radar receiver is additionally configured to reject radar waves having a polarization being different than the second polarization to disregard noise generated by environmental interaction of the transmitted radar waves and from extraneous radar sources.

Abstract: The invention relates to a method for determining the distance and radial speed of an object relative to a measuring point, wherein the method comprises the following steps: a) emitting first transmission signals, which are radar radiation in the form of first frequency ramps, b) emitting second transmission signals, which are radar radiation in the form of second frequency ramps, wherein the second frequency ramps are different to the first frequency ramps, c) receiving received signals, which are first and second transmission signals reflected at the object, d) mixing the received signals with the first or second transmission signals to create mixed signals, e) creating a range-Doppler matrix using the mixed signals, f) detecting two Doppler frequencies, which originate from the radial speed of the object, and g) evaluating the Doppler frequencies and/or phase information of the mixed signals, such that ambiguities are eliminated when determining the radial speed wherein the first transmission signals and

Abstract: A vehicle radar device includes a first antenna unit, a second antenna unit, at least one computing unit and at least one circuit board. The first antenna unit and the second antenna unit are communicatively connected to the at least one computing unit. The at least one circuit board includes a first board portion and a second board portion. The first antenna unit is a circuit board type and disposed on the first board portion. The second antenna unit is a circuit board type and disposed on the second board portion. The at least one computing unit disposed on at least one of the first board portion and the second board portion. When an angle between the first board portion and the second board portion is P12, and the following condition is satisfied: 80degrees ?P12?130 degrees.

Abstract: A circuitry for feeding an antenna structure includes an input for LHCP signals, an input for RHCP signals as well as four antenna outputs. In addition, the circuitry includes first, second and third quadrature hybrids as well as at least two delay lines. The first quadrature hybrid is coupled, on the input side, to the first and second inputs and is coupled, on the output side, to the second and third quadrature hybrids. The second quadrature hybrid is coupled, on the output side, to two of the four antenna outputs, the third quadrature hybrid being coupled, on the output side, to two further ones of the four antenna outputs. The at least two delay lines are arranged at two of the four antenna outputs.

Abstract: The present invention discloses a new single polarized array waveguide antenna adapted to be configured above a signal processing substrate, and including an antenna array substrate and a waveguide body. The antenna array substrate includes a plurality of antenna units, each of which having a coupling portion and an impedance matching portion. The waveguide body is configured above the antenna array substrate, and includes a plurality of waveguide channels passing through the waveguide body. Each waveguide channel has a first ridge and a second ridge projecting from wall surfaces and arranged opposite to each other. The first ridge has a first lower withdrawn edge on a lower section of the waveguide channel, and the second ridge has a second lower withdrawn edge on the lower section of the waveguide channel.