2659results about "Substantially flat resonant elements" patented technology

A right-hand circularly-polarized patch antenna comprising a ground plane and a patch connected to each other with one or more wires for which the wire shape and location of the end points are selected such that they do not cause an antenna mismatch, and the electrical current carried in the wires produces an extra electromagnetic field subtracted from the patch field in the nadir direction.

A multi-band antenna has a feed point, a grounding location, a first portion for low band operation, a second portion for low band operation, and one or more portions for high band operation. The ground reference of the feed point for the multi-band antenna is connected to a separate object that may provide a base for the multi-band antenna. The feed point of the multi-band antenna may be spaced above the base and have a space between the feed point and a location for the ground point. The low band portion has multiple resonances that are often odd multiples of the lowest resonant response. The portions that resonant most dominantly in the high band often have multiple resonances that are even multiples of the lowest high band resonance. The multi-band antenna has resonances spaced closely enough to appear to be a wide band antenna above the fundamental high band resonance.

A glucose monitoring device is provided. The glucose monitoring device includes a housing having a first portion and a second portion, the second portion operable to be placed adjacent to a human body during operation of the glucose monitoring device. The glucose monitoring device further includes a circuit board positioned between the first portion and the second portion of the housing, the circuit board having a trace antenna. The glucose monitoring device further includes a conductive structure spaced apart from the circuit board.

An antenna apparatus includes a radiation shield between an antenna element and at least one radio frequency integrated circuit (RFIC) coupled to the antenna element. An antenna substrate includes a first dielectric layer having opposite first and second surfaces, and a first metallization layer attached to the second surface to form a ground plane. A base substrate includes at least one second dielectric layer having opposite third and fourth surfaces, and a second metallization layer having a first side attached to the third surface and a second side attached to the first metallization layer to form the radiation shield. The RFIC is RF coupled to the antenna element through at least one via extending through the base substrate and a coupling element within aligned openings of the first and second metallization layers.

We generally describe an antenna system comprising a dual-polarized radiating element extending generally in a first direction parallel or substantially parallel to a reflector of the antenna system. The dual-polarized radiating element is configured to emit an electromagnetic wave. The antenna system further comprises a low-pass filter structure extending generally in a second direction perpendicular or substantially perpendicular to the reflector of the antenna system. The low-pass filter structure is spaced apart, in relation to the first direction, from a center portion of the dual-polarized radiating element. The antenna system further comprises a coupling feeding line which electrically couples, via a region which comprises an end portion of the dual-polarized radiating element, the low-pass filter structure with the center portion of the dual-polarized radiating element for feeding an electrical signal via the low-pass filter structure through the coupling feeding line to the center portion of the dual-polarized radiating element.

An antenna module and a related network communication device are provided in this disclosure. A network communication device includes a circuit board, a network communication chip, an antenna, a signal line, and an antenna bracket. The network communication chip is disposed on the circuit board. The antenna bracket has a first antenna slot, a circuit board slot, a circuit board hook and an opposite supporting part. The first antenna slot is configured to carry the antenna. The circuit board hook and the opposite supporting part are respectively located on opposing first surface and second surface of the circuit board. The circuit board slot is located between the circuit board hook and the opposite supporting part to accommodate the circuit board. The circuit board hook is buckled to a first buckle hole of the circuit board.

According to the broadband single-layer dual-polarization microstrip antenna, a radiation patch and a short-circuit metal column are combined to form an EBG structure, and the working bandwidth is greatly improved. And the two ports are connected with the circular parasitic patch through the coaxial line, so that radiation energy coupling is realized, and impedance matching is improved. And two ports are orthogonally arranged, so that the isolation is improved. The four slits suppress the coupling current between the adjacent antenna units, an additional decoupling structure is not needed, the polarization purity is ensured, and the cross polarization is less than-15dB. The antenna is compact in structure, a single-layer substrate is adopted, the profile of the antenna is 0.08 working wavelength, miniaturization, dual polarization, broadband and high isolation are achieved, processing is simple, the antenna works in the 16.7 GHz Ku frequency band, and the-10 dB impedance bandwidth is about 16%. According to the invention, a miniaturized, dual-polarized, broadband, high-isolation and monopole-like radiation mode is realized, the radiation mode is stable, and the antenna can be used as a phased array unit.

A switchable patch antenna comprises a planar conductor having an aperture (hole) formed in the middle of the planar conductor. Radiation of a sinusoidal signal is controlled by comparison of separate impedance values for two components that have separate impedance values. Each of the two components have one end coupled together at the terminal positioned at a center of the aperture and their other ends separately coupled to opposing edges of the aperture. A sinusoidal signal source is also coupled to the terminal positioned at the aperture's center. Further, when the impedance values of both components are substantially equivalent, radiation by the antenna of the provided signal and / or mutual coupling of other signals is disabled. Also, when an impedance value of one of the two components is substantially greater than the other impedance value of the other component, the provided signal is radiated and / or mutual coupling is enabled.

An antenna assembly can include a base portion and a cover, the cover configured to be removably coupled to the base portion. The antenna assembly can include a modem positioned on or above the base portion, a ground plane, and a multi-band antenna.

The invention belongs to the technical field of antenna engineering, and particularly relates to an ultra-wide-band low-profile phased-array antenna, which realizes broadband impedance matching characteristics and effectively expands the working bandwidth of the antenna by optimizing a dipole arm structure and introducing a matching branch knot and linear tapered slot composite structure on a radiation unit layer; on the array architecture level, an electromagnetic metasurface technology is adopted, array current distribution is improved through a periodic artificial electromagnetic structure, the active standing-wave ratio is remarkably reduced, the scanning angle of an array is widened, and meanwhile high compression of a system profile is achieved; on the structural design level, a three-dimensional composite structure of a transverse metal floor, a longitudinal radiation layer and a transverse metasurface layer is innovatively constructed, and the overall section height is reduced to 0.137 lambda Low (lambda Low is the lowest working frequency wavelength) through electromagnetic coupling and space folding technologies; in conclusion, the ultra wide band (the relative bandwidth is greater than or equal to 90%) and the low profile (lt; and the method is suitable for a new generation of broadband phased array radar system.

The wireless RF semiconductor system is described for use in wireless communication devices that operate in frequency range from 6 GHz to 100 GHz. The system comprises of at least one RF antenna and at least one active RF component fabricated (or built) on the same semiconductor substrate inside a one single packaged module. The wireless RF semiconductor system is described in a variety of different configurations with its functionality divided up over several single chip circuits. The system simplifies assembly, reduces size and cost, and allows for a quick time to market, while maximizing the RF performance demanded by fixed and mobile 4G, 5G and other wireless standards.

A multi-band antenna element is provided with a stacked pair of a first low-band patch antenna element and a second low-band patch antenna element and also a high-band patch antenna element for operation across both a low band and a high band. An L-shaped probe in the multi-band antenna is configured to parasitically excite the high-band patch antenna element. A linear slot in the second low-band patch antenna element is configured to resonant in the high band.

Embodiments of this application relate to the field of antenna technologies, and disclose a terminal antenna and an electronic device, which can provide good radiation performance in a poor environment. The terminal antenna includes a first radiator, the first radiator is provided with a first feed and a first ground point, and the first ground point is arranged at an end of the first radiator. The first ground point is connected to the first radiator through a first inductor, and a value of the first inductor is included within a range of [5 nH, 47 nH].

This disclosure relates generally to a composite reconfigurable intelligent surface system for real time beam steering and method thereof. Conventional method for real time beam steering includes bulky systems with several antenna elements and amplifiers to shape and control the beam. The present disclosure provides a composite reconfigurable intelligent surface (CRIS) for real time beam steering. The CRIS is formed from a set of constituent reflecting surfaces which in turn are generated from unit cells. These unit cells are responsible for providing individual phase reflection performance utilizing the installed varactor diode in each unit cell. The CRIS can provide a) multi-beam reflection performance, b) polarization sensitive operation, c) 2D beam steering abilities, d) real-time beam control, e) null point reduction for beam shaping requirements and f) dependable pattern stability over a suitable range of frequencies.

An antenna is provided. The antenna includes a feed line structure; a first low dielectric constant layer on the feed line structure; a first flexible layer on a side of the first low dielectric constant layer away from the feed line structure; a phase shifter on a side of the first flexible layer away from the first low dielectric constant layer; a first ground plate on a side of the phase shifter away from the first flexible layer; and a radiating plate on a side of the first ground plate away from the phase shifter. The first low dielectric constant layer has a dielectric constant in a range of 1.5 to 3. The first flexible layer has a Flexural modulus in a range of 0.01 to 10.0.

The invention provides a wide-angle scanning dual-circularly-polarized phased-array antenna unit, which belongs to the field of dual-circularly-polarized antennas and comprises a first dielectric layer, a second dielectric layer and a third dielectric layer which are sequentially stacked, the antenna radiator is arranged on the side, away from the second dielectric layer, of the first dielectric layer, the antenna radiator comprises four radiation patches, each radiation patch comprises a metal patch and a loading branch knot, and each metal patch is provided with a slotted structure; the first metal ground layer is clamped between the first dielectric layer and the second dielectric layer, and a cross coupling gap and a first coupling gap and a second coupling gap which are perpendicular to each other are formed in the first metal ground layer; the U-shaped feeder line is clamped between the second dielectric layer and the third dielectric layer, and two ends of the U-shaped feeder line are respectively connected with a coaxial feed column penetrating through the third dielectric layer; the second metal ground layer is arranged on the side, away from the second dielectric layer, of the third dielectric layer; an array is also provided; the problem that a traditional circularly polarized antenna is narrow in impedance bandwidth and limited in polarization is solved.

The invention discloses a compact millimeter wave dual-polarization filtering antenna and array, which comprises 11 layers of structures (a first metal layer to a sixth metal layer, three dielectric layers and two bonding layers) and three types of metalized via holes which are sequentially stacked from top to bottom, the feed through hole penetrates through the first dielectric layer to the third dielectric layer, the short-circuit through hole penetrates through the first dielectric layer to the third dielectric layer, and the shielding hole penetrates through the third dielectric layer. Wherein a cross-shaped radiation patch and a C-shaped parasitic metal strip line are arranged on the first metal layer; an annular driving patch is arranged on the second metal layer; the third metal layer is provided with a feed metal strip line and a parasitic metal strip line. The fourth metal layer is provided with a parasitic open-circuit branch. A first grounding plane is arranged on the fifth metal layer; the sixth metal layer is provided with a second grounding plane and an anti-pad. The working frequency band covers the n258 frequency band and the n257 frequency band of 5G millimeter waves, dual-polarization radiation and effective out-of-band rejection can be achieved, and meanwhile the antenna has the advantages of being compact in structure and light and handy in appearance.

The invention belongs to the technical field of communication, and particularly relates to an ultra-wideband miniaturized Vivaldi antenna. The antenna comprises a dielectric substrate, wherein the upper surface of the dielectric substrate comprises a main body Vivaldi antenna, four resistors, two rectangular metal patches and an artificial surface plasma, wherein the main body Vivaldi antenna is provided with an exponential gradually-changed slot; a feed network is arranged on the lower surface and comprises six impedance conversion microstrip transmission lines, a fan-shaped transmission line and a circular groove; the main body antenna and the dielectric substrate are placed in a centered alignment manner, the four resistors are placed at the tail end of the main body antenna, and the rear sides of the resistors are connected with the two rectangular patches; the artificial surface plasma is placed in the main body antenna gradual change gap; and the multi-section impedance transformer and the microstrip-to-slot line structure of the feed network are aligned with the circular slot of the main body antenna. According to the invention, the ultra wide band, miniaturization and high radiation gain are realized by designing the main body antenna, slotting the edge, loading the resistor, carrying out the artificial surface plasma and the like. The working frequency band of the antenna ranges from 0.2 GHz to 18 GHz, and the antenna has the characteristic of miniaturization.

A vehicle comprises: vehicular glass including a transparent region and an opaque region; a transparent dielectric substrate disposed in the transparent region of the vehicular glass; a first area including an antenna on one side surface of the transparent dielectric substrate; and a second area including a power supply pattern and a ground conductive pattern electrically connected to the antenna. The antenna may comprise: a first slot formed between a signal pattern and a first ground pattern and configured to radiate a first signal having a circularly polarized wave in a first frequency band; and a second slot formed between the first ground pattern and a second ground pattern and configured to radiate a second signal having a circularly polarized wave in a second frequency band lower than the first frequency band.

An antenna includes a cross-polarized feed signal network configured to convert first and second RF input feed signals to first and second pairs of cross-polarized feed signals at respective first and second pairs of feed signal output ports. A patch radiating element is provided, which is electrically coupled to the first and second feed signal output ports. The patch radiating element includes an electrically conductive forward-facing surface thereon, which is segmented into four quadrants by four generally L-shaped slots within the electrically conductive forward-facing surface. These four generally L-shaped slots are positioned back-to-back relative each other so that a cross-shaped portion of the electrically conductive forward-facing surface extends between the four generally L-shaped slots and radially outward towards four respective points on a perimeter of the patch radiating element.

An electronic device is provided. The electronic device includes an antenna substrate and an antenna array comprising a sub array, the sub array includes a plurality of antenna elements, feeding network circuitry including a first power divider for first polarization and a second power divider for second polarization, which differs from the first polarization, and network circuitry for decoupling of a first signal of the first power divider and a second signal of the second power divider, wherein the sub array is disposed on a first surface of the antenna substrate, and wherein the feeding network circuitry disposed on the first side or a second side opposite to the first side of the antenna substrate, and wherein the network circuitry for decoupling is disposed in a region between the first power divider and the second power divider in the first side or the second side of the antenna substrate.

The dual-polarized antenna comprises a first dielectric substrate, a second dielectric substrate, a third dielectric substrate, a fourth dielectric substrate, a fifth dielectric substrate and a double-feed probe, the first dielectric substrate, the second dielectric substrate and the fifth dielectric substrate are stacked, one surface of the first dielectric substrate is provided with four centrosymmetric patch units, and the surface, close to the first dielectric substrate, of the second dielectric substrate is provided with a radiation patch coaxial with the patch units. A first I-shaped gap and a second I-shaped gap which are crossed, vertical and centrosymmetric are formed in the third dielectric substrate close to the second substrate surface, a plurality of first metalized via holes are formed in the periphery, and the gaps are coaxial with the patch unit; the fourth dielectric substrate is provided with a first T-shaped microstrip feeder line and a second T-shaped microstrip feeder line which are not in contact with each other, the periphery of the fourth dielectric substrate is provided with second metalized via holes which are in one-to-one correspondence with the first via holes, and the feeder lines are respectively corresponding to the I-shaped gaps; and the double-feed probe is respectively connected with the feed points of the first T-shaped microstrip feeder and the second T-shaped microstrip feeder through feed holes. By adopting the dual-polarized antenna, the port isolation and the wide-angle scanning range can be improved.

The invention belongs to the field of antennas, and discloses a millimeter wave broadband circularly polarized antenna array and a manufacturing method thereof. The fourth metal layer is used for receiving and transmitting electromagnetic waves based on the sequential rotation feed network; the fourth metal layer is also used for serving as a ground plane of the grounding coplanar waveguide; the third dielectric layer is used for transmitting the received electromagnetic waves to the third metal layer; metal via holes are introduced into the third dielectric layer to realize the performance of the grounding coplanar waveguide; the third metal layer is used for coupling electromagnetic waves to the first radiation layer and the second radiation layer based on slot coupling; the third metal layer is also used for serving as a ground plane of the grounded coplanar waveguide; the first radiation layer and the second radiation layer are respectively used for directionally radiating electromagnetic waves to a free space; metal via holes are introduced into the first radiation layer and the second radiation layer, so that the performance of the magnetoelectric dipole antenna is realized; the millimeter wave antenna meets the requirement of a millimeter wave mobile communication working frequency band, and has the characteristics of large axial ratio bandwidth, easiness in processing, low loss and stable directional diagram.

A patch antenna includes: a first element; and a second element located so as to face the first element, wherein the first element includes a first main body portion facing the second element, and at least one first bent portion extending from the first main body portion toward the second element, and a wave source is generated between the second element and the first bent portion.

The invention discloses a dual-beam dual-circularly-polarized wide-angle scanning phased-array antenna, and belongs to the field of wireless communication. The antenna is composed of an antenna unit group. The antenna unit comprises a bottom metal floor, a fifth substrate, a 3dB bridge, a fourth substrate, an antenna metal floor, a third substrate, a second rectangular feeder line, a second substrate, a first rectangular feeder line, a first substrate and a radiation patch layer which are arranged from bottom to top; wherein the 3dB bridge is used for realizing signal transmission, and the two rectangular feeder lines have the same size and are orthogonally arranged; the radiation patch layer comprises four square metal patches and two feed discs; the square metal patches are separated through the L-shaped gaps and are connected with the antenna metal floor through the short circuit columns respectively, and the feed disc is connected with the rectangular feed line through the metal probe and connected to the output end of the 3dB bridge. The antenna unit adopts an equivalent magnetoelectric dipole form, the wide-angle scanning characteristic of the phased-array antenna is achieved, communication with two satellites can be achieved at the same time, and the overall communication efficiency is improved.

A hybrid antenna substrate of an embodiment comprises: a core part including a core layer and a core wiring layer laminated in the vertical direction; and an antenna part disposed on the core part, wherein: the antenna part comprises a plurality of antenna wiring layers successively laminated on the core part and antenna insulating layers disposed between the plurality of antenna wiring layers; and the core layer has a greater dielectric constant than the antenna insulating layers.

A wearable device includes a first radiation metal element, a second radiation metal element, a ground metal element, a third radiation metal element, and a carrier element. The first radiation metal element is coupled to a positive feeding point. The second radiation metal element is coupled to the positive feeding point. The ground metal element is coupled to a negative feeding point. The third radiation metal element is adjacent to the ground metal element. A coupling gap is formed between the third radiation metal element and the ground metal element. The first radiation metal element, the second radiation metal element, the ground metal element, and the third radiation metal element are disposed on the carrier element. An antenna structure is formed by the first radiation metal element, the second radiation metal element, the ground metal element, and the third radiation metal element.

Embodiments generally relate to small satellites. Example small satellites may include a satellite body having a rectangular tile shape, with a substantially flat front side having a length and width and being separated from a substantially parallel back side by a depth, wherein the depth is equal to or less than a third of the length and the width. A patch antenna array may be positioned on the front side and / or a large patch antenna may be positioned centrally on the front side. A solar panel may be positioned on or coupled to the back side.

Disclosed are an antenna unit, an antenna array, a beam scanning method, a communication apparatus, and a computer-readable storage medium. The antenna unit includes a microstrip patch antenna and a phase shifter. The phase shifter includes: a microstrip line; a liquid crystal layer, arranged between the microstrip line and the microstrip patch antenna; and a metal layer, arranged between the liquid crystal layer and the microstrip patch antenna, where a first through hole is formed in the metal layer, and the output ends of the microstrip patch antenna and the microstrip line are coupled by means of the first through hole. The antenna unit capable of implementing beam phase change is simple in structure, low in manufacturing cost, and small in weight, can be manufactured into a planar structure, and is low in profile, easy to process, easy to downsize, convenient to carry, and convenient to integrate.

An electronic device may include: a first housing, a second housing configured to slide from the first housing, a flexible display disposed to the first housing and the second housing and having a screen configured to be reduced / extended according to the sliding of the second housing, a first antenna module including at least one antenna disposed to the first housing and configured to radiate a millimeter wave, and a second antenna module including at least one antenna disposed to the second housing and configured to radiate a millimeter wave. The second antenna module may be located adjacent to one side face of the second housing and may be configured to form a beam in a same direction as the first antenna module.