864 results about "Radiating element" patented technology

Aspects of the subject disclosure may include, for example, identifying one or more radiating elements of an antenna system that are to be adjusted based on interference determined to affect an operation of the antenna system, and altering one or more properties of the one or more radiating elements to effect polarization adjusting such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.

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.

A device may include a radome. A device may include a spacer coupled to the radome. A device may include a first antenna element formed on a first printed circuit board (PCB) and configured to be housed by the radome, wherein the first antenna element is a multi-band antenna element comprising: one or more low-band radiating elements, one or more mid-band radiating elements; and one or more high-band radiating elements. A device may include a second antenna element formed on a second PCB and configured to be housed by the radome, the second antenna element comprising one or more WiFi antenna elements. A device may include a third antenna element formed on a third PCB and configured to be housed by the radome, the third antenna element comprising one or more global positioning system (GPS) antenna elements.

The invention discloses a Ka-band four-tilt-beam magnetoelectric dipole antenna, and belongs to the technical field of millimeter wave radio frequency front-end devices. Based on a magnetoelectric dipole composite radiation structure, four centrosymmetric radiation units are integrated on a low-loss substrate. The antenna comprises a probe patch of a coaxial gamma-shaped feed probe, a radiation patch, a parasitic patch, an upper dielectric substrate, a lower dielectric substrate, a middle curing layer, a shorter metal through hole of the coaxial gamma-shaped feed probe, a longer metal through hole of the coaxial gamma-shaped feed probe, a metal through hole c of the radiation patch, a metal through hole d of the parasitic patch and a metal ground backboard, a probe patch, a radiation patch and a parasitic patch of the coaxial gamma-shaped feed probe are located on the upper surface of the upper-layer dielectric substrate, and a metal ground backboard is located on the lower surface of the lower-layer dielectric substrate; the antenna has ultra-wide impedance bandwidth, has the characteristics of low cost, miniaturization, low cross polarization and back lobe suppression, and is superior to a traditional inclined beam antenna and an antenna array scheme.

An antenna module is configured to receive a signal from a baseband circuit and to radiate a radio wave. The antenna module includes a dielectric substrate, radiating elements, and a connector. The dielectric substrate includes planar sections having different normal directions. A first radiating element is disposed in or on the planar section. A second radiating element is disposed in or on the planar section. The antenna module is configured to transfer a radio-frequency signal to a third radiating element, which is externally disposed, via the connector. The size of the second radiating element is smaller than that of the third radiating element.

A base station antenna includes a calibration circuit that has a plurality of pairs of directional couplers and an antenna array that includes a plurality of columns of radiating elements. The first polarization radiators of the radiating elements in each column are electrically connected to a first directional coupler of a respective one of the pairs, and the second polarization radiators of the radiating elements in the column are electrically connected to a second directional coupler of the respective one of the pairs. The directional couplers may be arranged in a manner that reduces in-column coupling and / or that reduces cross-column coupling between adjacent columns of radiating elements.

Base station antennas include a reflector; a first plurality of cross-dipole radiating elements that are arranged as a first array of cross-dipole radiating elements, each cross-dipole radiating element comprising a first dipole radiator having a first dipole arm and a second dipole arm and a second dipole radiator having a third dipole arm and a fourth dipole arm; and a plurality of parasitic monopole elements that are associated with a first of the cross-dipole radiating elements, each parasitic monopole element including a monopole radiator, wherein at least half of each monopole radiator is positioned within a footprint of the first and second dipole radiators of the first of the cross-dipole radiating elements when the first of the cross-dipole radiating elements is viewed from the front.

Base station antennas include a reflector, a first linear array of radiating elements extending forwardly from the reflector, the radiating elements in the first linear array configured to operate in a first frequency band, and a second linear array of radiating elements extending forwardly from the reflector, the radiating elements in the second linear array configured to operate in the first frequency band. These antennas further include an isolation wall that is positioned in between the first linear array of radiating elements and the second linear array of radiating elements. This isolation wall comprises at least one partially reflective surface that is configured to reflect, on average as a function of frequency, between 20% and 80% of incident radiation in the first frequency band.

An antenna module includes a dielectric substrate, a ground electrode disposed in the dielectric substrate, flat-plate-shaped radiating elements, feed lines, and a via electrode connected to the ground electrode. The radiating element is disposed opposite the ground electrode in the dielectric substrate. The radiating element is disposed between the radiating element and the ground electrode. The feed line extends through the radiating element and transmits a radio-frequency signal to the radiating element. The feed line transmits a radio-frequency signal to the radiating element. The feed line is electrically coupled to the radiating element at a position offset from a center of the radiating element in a first direction. The feed line is electrically coupled to the radiating element at a position offset from a center of the radiating element in a second direction different from the first direction.

According to one embodiment, electronic circuitry, includes a first radiating element; a second radiating element; a first circuit element including a first end and a second end, the first end being connected to one end of one of the first radiating element or the second radiating element; and a second circuit element connected between the second end of the first circuit element and one end of another of the first radiating element or the second radiating element.

A phased array antenna that includes a base plate; first and second spaced apart radiating elements formed by at least one conductive layer disposed on at least one dielectric layer that projects from the base plate; and a pillar disposed between the first and second spaced apart radiating elements, wherein the pillar is electrically connected to the base plate, and the first and second spaced apart radiating elements are configured to capacitively couple to the pillar.

Radiating elements comprise a first dipole radiator that includes a first dipole arm and a second dipole arm, a second dipole radiator that includes a third dipole arm and a fourth dipole arm and first through fourth electromagnetic bandgap structures that are coupled to distal end portions of the respective first through fourth dipole arms.

Described herein are unmanned aerial vehicles (UAVs) and antenna assemblies thereof for shaping radiation patterns in global positioning system applications. For example, an embodiment pertains to an antenna assembly onboard an aerial vehicle. The antenna assembly includes a radiating element coupled to a chassis of an aerial vehicle and positioned in parallel with the chassis, a substrate coupled to the radiating element, a ground plane coupled to the substrate, and a feed cable coupled to the radiating element through the substrate and the ground plane. The ground plane includes a center portion in parallel with the chassis and with the radiating element, and side portions positioned at an angle relative to the chassis and to the radiating element.

An antenna structure includes a ground element, a feeding radiation element, a connection radiation element, a grounding radiation element, a shorting radiation element, a first radiation element, a second radiation element, a third radiation element, a fourth radiation element, and a nonconductive support element. The feeding radiation element has a positive feeding point. The first radiation element and the second radiation element are coupled to the feeding radiation element. The second radiation element is at least partially surrounded by the first radiation element. The grounding radiation element has a negative feeding point. The grounding radiation element is coupled through the connection radiation element to the feeding radiation element. The shorting radiation element is coupled to the ground element. The third radiation element and the fourth radiation element are coupled to the shorting radiation element. The fourth radiation element is at least partially surrounded by the third radiation element.

An antenna structure includes a ground element, a feeding radiation element, a first radiation element, a second radiation element, a shorting radiation element, a third radiation element, a filter circuit, a proximity sensor, and a tuning circuit. The ground element provides a ground voltage. The feeding radiation element has a feeding point. The first radiation element and the second radiation element are coupled to the feeding radiation element, or are disposed adjacent to the feeding radiation element. The first radiation element is also coupled through the shorting radiation element to the ground voltage. The third radiation element is disposed adjacent to the first radiation element. The third radiation element is coupled through the filter circuit to the proximity sensor. The filter circuit is also coupled through the tuning circuit to the ground voltage.

The invention relates to the technical field of antennas, and further relates to a wide-beam multi-vibrator planar antenna supporting Tiantong Beidou frequency bands, which comprises a multi-vibrator radiation array element layer, a coplanar feed-amplitude shaping network, a stepped impedance matching section, a low-loss double-layer dielectric laminated layer and a metal reflecting plate, the outermost side of the multi-oscillator radiation array element layer is a PCB lamination layer; the coplanar feed-amplitude shaping network comprises a radiation patch, and different current amplitudes are provided for all oscillators through phase shift sections with different electric lengths so as to ensure that the half-power beam width can still reach 90 degrees or above under the condition of the shortest Beidou wavelength; the stepped impedance matching section is a pi-shaped converter formed by connecting three microstrip lines with different widths in series; and the low-loss double-layer dielectric laminated layer is used for solving the minimum distance between the metal reflecting plate and the PCB laminated layer according to the theoretical minimum gain. The antenna has the advantages of compact structure, stable gain and wide beam width.

The invention discloses a broadband dielectric resonant liquid crystal microwave phased array antenna, which belongs to the technical field of microwave phased array antennae, and comprises antenna units, each antenna unit comprises a radiation unit, a first glass substrate layer, a grounding copper layer, a liquid crystal layer, an inverted spiral microstrip phase shift layer and a second glass substrate layer, the radiation unit is located on the upper surface of the first glass substrate layer, the grounding copper layer is located on the lower surface of the first glass substrate layer, and a coupling gap is formed in the grounding copper layer; the inverted spiral micro-strip phase shift layer corresponds to the opening position so as to allow electromagnetic waves to be coupled to the radiation unit, and the inverted spiral micro-strip phase shift layer is immersed in the liquid crystal layer. According to the invention, the problem that most of the existing devices can only work in a one-dimensional plane and cannot realize broadband wide-angle scanning is solved. The phase of the antenna can be accurately regulated and controlled, the radiation performance of the antenna is improved, the flexibility and adaptability of the antenna are greatly improved while high performance is kept, and the integration level and portability of the antenna are improved.

The present disclosure relates to a base station antenna; the base station antenna comprises: a radio; a feed board and a radiating element array mounted on the feed board, where the radiating element array comprises a plurality of radiating elements, and each radiating element extends forward from the feed board; a radome arranged in front of the radiating element array; and a plurality of radome supporting members mounted on the radio and extending forward from the radio to the radome for supporting the radome.

A base station antenna includes a first radio frequency (“RF”) port; a second RF port; a first array of radiating elements that includes a first radiating element, the first radiating element including first and second radiators each having the first polarization direction, wherein the first radiator is coupled to the first RF port; a second array of radiating elements that includes a second radiating element, the second radiating element including a third radiator having the first polarization direction; and a first power divider having a first input that is coupled to the second RF port, and first and second outputs that are respectively coupled to the second and third radiators.

The present application relates to a kind of radiation elements, the radiation element includes: radiator, feed rod and parasitic element, the radiator is fed by the feed rod, wherein, the parasitic element includes conductive structure, the conductive structure includes serpentine conductive path, and coupling capacitance is formed between conductive structure and radiator, and wherein, the center frequency of the operating frequency band of the radiator is greater than the center frequency of the first operating frequency band of parasitic element.Radiation element according to some embodiments of the present application can at least reduce the coupling interference between each array, improve isolation performance.In addition, the radiation element according to some embodiments of the present application can also be used to reduce the size of radiation element itself, so that radiation element is more compact.In addition, the present application also relates to a kind of base station antennas.

Antenna for a motor vehicle, comprising a mounting plate suitable to be connected to a mounting surface of the motor vehicle, a first printed circuit board adapted to be connected, in a substantially horizontal position, to the mounting plate, first and second radiating elements for transceiving respective first and second signals with the environment outside the antenna.Both radiating elements comprise a respective printed circuit board along which there are arranged respectively a first electrically conducting track and a second electrically conductive track which extend along the respective printed circuit board along a substantially helical or serpentine path.The first radiating element has a maximum height, measured from the top surface of the first printed circuit board along the substantially vertical direction, and the first height of the first electrically conducting track is less than or equal to one-half of the maximum height of the first radiating element.

An antenna assembly, which includes one or more radiating element arrays and at least one dielectric isolator for the one or more radiating element arrays, wherein, the dielectric isolator is configured to tune the phase of a coupling signal between the radiating elements so as to at least partially eliminate coupling interference between the radiating elements. As a result, the radiation pattern of the antenna can be improved. The present disclosure also provides a base station antenna having the antenna assembly.

Provided is a microstrip array antenna including a dielectric substrate, a feed line formed on a top surface of the dielectric substrate, a plurality of radiation elements formed on the top surface of the dielectric substrate and electrically connected to the feed line, and a ground surface formed on a bottom surface of the dielectric substrate. At least one radiation element among the plurality of radiation elements may have a bottleneck shape.

An antenna structure includes a main radiation element, a first ground element, a second ground element, a carrier element, a metal cavity, a first capacitor, and a second capacitor. The first ground element includes a first connection segment, a first protruding segment, and a second protruding segment. The second ground element includes a second connection segment, a third protruding segment, and a fourth protruding segment. The main radiation element is surrounded by the first ground element and the second ground element. The first capacitor is coupled between the first protruding segment and the third protruding segment. The second capacitor is coupled between the second protruding segment and the fourth protruding segment. The metal cavity is coupled to the first connection segment and the second connection segment. The carrier element is disposed in the metal cavity.

The invention discloses a base station antenna, a radiating element and a phase shifter assembly. A base station antenna includes: a radiating element including a feed rod and a radiator mounted on the feed rod; the phase shifter assembly comprises a phase shifter cavity, and the wall, close to the feed rod, of the phase shifter cavity is provided with a through hole corresponding to the feed rod; and a phase shift circuit mounted within the phase shifter cavity wherein the feed pole is configured to be fixed relative to the phase shift circuit and the first conductor feature of the feed pole is directly electrically connected through the through-hole with the second conductor feature of the phase shift circuit.

The invention relates to a lower frequency band radiating element with reduced scattering of higher frequency band radiation. A radiating element includes: a feed stem printed circuit board including a first RF transmission line and a second RF transmission line; a first dipole radiator coupled to the first RF transmission line; and a second dipole radiator coupled to the second RF transmission line. The first dipole radiator comprises a first dipole arm and a second dipole arm, and the second dipole radiator comprises a third dipole arm and a fourth dipole arm. A first amount of coupling between the first dipole arm and the third dipole arm exceeds a second amount of coupling between the first dipole arm and the fourth dipole arm.

An array antenna (100) having a layered configuration. The array antenna comprises a radiation layer (110) comprising a plurality of radiation elements (111) and a distribution layer (120) facing the radiation layer. The distribution layer is arranged to distribute a radio frequency, RF, signal to the plurality of radiation elements. The distribution layer comprises at least one distribution layer feed (121) and at least one first waveguide (122) arranged to guide the RF signal between at least one distribution layer feed and at least one radiation element. The array antenna further comprises at least a second waveguide (130) connected to at least one distribution layer feed (121). Any of the first (122) and the second (130) waveguides comprises plastics with a first type of surface treatment (313), where the first type of surface treatment comprising metallization. At least one radiation element is a dummy element terminated by an attenuation section, where the attenuation section is arranged on any of the waveguides (122, 130) connected to the dummy element and that comprises plastics. The attenuation section comprises a second type of surface treatment (314) arranged to attenuate the RF signal.

The invention discloses a liquid crystal-based Ka-band broadband circularly polarized phased-array antenna, and belongs to the technical field of microwave antennas. The antenna comprises a radiation structure and a feed structure. The radiation structure comprises a radiation unit, a liquid crystal layer, a grounding plate, a control circuit, a bias network and a radio frequency direct current isolation structure. The control circuit is realized by an FPGA (Field Programmable Gate Array) and is connected with the radiation unit through a bias network; the radio frequency direct current isolation structure is used for isolating direct current and radio frequency signals; the feed structure adopts a waveguide feed mode and forms a wave beam in a specified direction through phase compensation of the array units; the bandwidth of the antenna array is increased by using a sequential rotation feed mode, the offset line arrangement of the array is designed, and the radio frequency direct current isolation design is added, so that the technical problem that the circularly polarized bandwidth of the liquid crystal phased-array antenna is relatively narrow is solved.

A multi-band antenna includes a first column of radiating elements that are configured to operate in a first operating frequency band mounted on a reflecting plate; a second column of radiating elements that are configured to operate in a second operating frequency band mounted on the reflecting plate; a first fence and a second fence located on both sides of the reflecting plate that extend forward from the reflecting plate, where the first and second columns of radiating elements are arranged in between the first and second fences, the first fence and the second fence respectively comprise a frequency selective surface with a passband and a stopband, the passband covers at least the first operating frequency band, and the stopband covers at least the second operating frequency band.

An antenna device comprising an antenna array for transmitting a signal. The antenna array includes a plurality of radiating elements with each radiating element configured to radiate the signal with a predetermined phase. The antenna device further including another radiating element that is not part of the antenna array. The phase of the signal for each radiating element of the antenna array is controlled such that the signals radiated by the radiating elements of the array interfere destructively at at least part of the other radiating element.