166 results about "Parasitic element" patented technology

Competing tradeoffs of overall footprint, weight, and performance impact the design of antennas for many applications. However, those for compact portable devices or mobile platforms exploiting global navigation satellite systems these are further compounded by seeking good performance over a wide angular range. Accordingly, it would be beneficial to provide designers of a wide range of electrical devices and systems with compact broadband antennas which offer a low vertical profile relative to that provided by the common filar element approaches for high precision applications. Accordingly, through a combination of a dipole, a parasitic element, and additional ground elements to a convention ground plane the inventors provide broadband high performance antenna designs with low profile and low overall footprint.

An antenna module includes a dielectric substrate having a multilayer structure, a power supply element and a ground electrode (GND) disposed in or on the dielectric substrate, a parasitic element, a power supply wiring line, and first and second stubs to be connected to the power supply wiring line. The parasitic element is disposed in a layer between the power supply element and the ground electrode (GND). The power supply wiring line passes through the parasitic element and supplies radio frequency power to the power supply element. The first stub is connected to a position different from a connection position of the second stub in the power supply wiring line.

A broadband dual-feed circularly-polarized antenna includes first, second and third substrate modules (1, 3, 4) stacked from top to bottom. When the antenna operates in a transmit mode, signals fed to first and second feed lines (41, 42) of the third substrate module (4) are electromagnetically coupled to first and second slots (31, 32) of the second substrate module (3), then to a radiator (21) of the first substrate module (1), and finally to a parasitic element (11) of the first substrate module (1), and the parasitic element (11) transmits an electromagnetic wave. When the antenna operates in a receive mode, the parasitic element (11) receives an electromagnetic wave, and the electromagnetic wave is electromagnetically coupled to the radiator (21), then to the first and second slots (31, 32), and finally to the first and second feed lines (41, 42).

A broadband dual-feed circularly-polarized antenna includes first, second and third substrate modules. The first substrate module includes a parasitic element, and a radiator disposed below the parasitic element. The second substrate module is stacked below the first substrate module, and is provided with first and second slots. The third substrate module is stacked below the second substrate module, and includes first and second feed lines. When the antenna operates in a transmit mode, signals fed to the first and second feed lines are electromagnetically coupled to the first and second slots, then to the radiator, and finally to the parasitic element, and the parasitic element transmits an electromagnetic wave. When the antenna operates in a receive mode, the parasitic element receives an electromagnetic wave, and the electromagnetic wave is electromagnetically coupled to the radiator, then to the first and second slots, and finally to the first and second feed lines.

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.

The utility model relates to the technical field of communication, specifically provides an antenna assembly, and aims to solve the problem that a GNSS antenna in the prior art cannot increase the bandwidth of the antenna and improve the anti-interference capability on the premise of meeting the requirement of a limited space. For this purpose, the antenna assembly of the utility model comprises: a circuit board; the radiation unit is arranged on the top side of the circuit board and is electrically connected with the circuit board; and the parasitic director comprises a parasitic element and a director element, the parasitic element is arranged around the radiation unit, the director element is arranged on the top side of the radiation unit, and the parasitic element is electrically connected with the circuit board. By arranging the parasitic element around the radiation unit and arranging the guide element at the top side of the radiation unit, the bandwidth of the antenna assembly is expanded, the antenna assembly is not easy to generate frequency offset in a complex metal environment, the front-to-back ratio of the antenna is also improved, the back radiation of the antenna assembly is reduced, and the antenna efficiency is improved. The purpose of improving the anti-interference capability of the antenna assembly on the premise of the limited space requirement is achieved.

The disclosed system may include a frame, a printed circuit board (PCB) mounted to the frame, and at least one antenna electrically connected to the PCB via an antenna feed. The antenna may be shorter than a maximum specified length, and the antenna may be intended to operate within a specified frequency range for which the antenna's length is insufficiently long. Still further, in this system, electrical current flowing to the antenna may be routed to at least a portion of the frame to create a parasitic arm. As such, the parasitic arm may radiate in conjunction with the antenna, providing constructive interference in the specified frequency range. Various other mobile electronic devices, apparatuses, and methods of manufacturing are also disclosed.

An electronic device may have a phased antenna array. An antenna in the array may include a rectangular patch element with diagonal axes. The antenna may have first and second antenna feeds coupled to the patch element along the diagonal axes. The antenna may be rotated at a forty-five degree angle relative to other antennas in the array. The antenna may have one or two layers of parasitic elements overlapping the patch element. For example, the antenna may have a layer of coplanar parasitic patches separated by a gap. The antenna may also have an additional parasitic patch that is located farther from the patch element than the layer of coplanar parasitic patches. The additional parasitic patch may overlap the patch element and the gap in the coplanar parasitic patches. The antenna may exhibit a relatively small footprint and minimal mutual coupling with other antennas in the array.

An electronic device may be provided with peripheral conductive housing structures, a rear wall, and a vent that includes a conductive cowling. The device may include an antenna having an antenna arm coupled to a positive antenna feed terminal and having a parasitic element. The parasitic element may be formed from a conductive trace that is layered onto the rear wall, that is indirectly fed by the antenna arm, and that overlaps a portion of the conductive cowling. The parasitic element may be shorted to a conductive bracket on the rear wall or may be separated from the bracket by a gap. If desired, the conductive cowling may form some or all of a parasitic element for the antenna. The conductive cowling may be indirectly fed by the conductive trace and / or may include an extension that is indirectly fed by the antenna arm.

An embodiment relates to a packaging substrate and a semiconductor device, the semiconductor device comprising: an element unit including a semiconductor element; and a packaging substrate electrically connected to the element unit, wherein a glass substrate is used as the core of the packaging substrate so as to achieve a closer connection between the semiconductor element and a motherboard, thereby allowing an electrical signal to be transmitted over as short a distance as possible. Accordingly, provided is a packaging substrate which can significantly improve electrical characteristics such as signal transmission speed, can substantially prevent the occurrence of a parasitic element and thus more simplify the insulation layer treatment process, and can be applied to a high-speed circuit.

A patch antenna includes: a radiating element having a flat-plate shape; and a parasitic element provided at a position spaced away from the radiating element in planar view in which the radiating element is seen from a direction perpendicular to a plate surface of the radiating element. A longitudinal direction of the parasitic element is oriented along a direction of a line segment connecting a center of the radiating element and a feeding point in the planar view.

A wideband phased array antenna is provided. The wideband phased array antenna includes a plurality of antenna cells. Each of the antenna cells is configured to communicate over a frequency band ranging from 24 GHz to 52 GHz. Furthermore, one or more of the antenna cells includes a driven element and a parasitic element. The driven element is disposed on a first substrate that includes a first dielectric material. The parasitic element is disposed on a second substrate positioned relative to the first substrate such that a gap is defined between the first substrate and the second substrate. The second substrate includes a second dielectric material that is different than the first dielectric material.

This paper describes a multi-port planar antenna system with digital reconfigurability to adjust the beamdirection function of the system. A substrate is provided, and a grid of parasitic elements is printed on the surface of the substrate. One or more driving radiating elements, such as monopole antennas or dipole antennas, are printed on the substrate near the parasitic elements. Switching elements between adjacent parasitic elements are then configured to guide the radiation direction in a specific direction in the azimuth plane. The small form factor of this planar antenna system can be used in MIMO applications employed by fifth-generation (5G) devices such as mobile phones, Internet of Things (IoT) devices, and vehicles.

An antenna comprises: a radiating plate with a radiating surface; a base plate arranged on the radiating plate with a dielectric material placed between them, the base plate being located on a side opposite the radiating surface of the radiating plate; and a parasitic element comprising: a first parasitic conductor arranged in a first direction with respect to a centroid of the radiating plate in a top view of the radiating plate; a second parasitic conductor arranged in a second direction opposite to the first direction with respect to the centroid of the radiating plate in a top view of the radiating plate;and a third parasitic conductor connecting the first parasitic conductor and the second parasitic conductor, the third parasitic conductor including a section running near the center of gravity of the radiating plate and extending in the first direction and the second direction in a top view of the radiating plate.

An electronic device may be provided with peripheral conductive housing structures, a rear wall, and a vent that includes a conductive cowling. The device may include an antenna having an antenna arm coupled to a positive antenna feed terminal and having a parasitic element. The parasitic element may be formed from a conductive trace that is layered onto the rear wall, that is indirectly fed by the antenna arm, and that overlaps a portion of the conductive cowling. The parasitic element may be shorted to a conductive bracket on the rear wall or may be separated from the bracket by a gap. If desired, the conductive cowling may form some or all of a parasitic element for the antenna. The conductive cowling may be indirectly fed by the conductive trace and / or may include an extension that is indirectly fed by the antenna arm.

In one embodiment, a biological information monitoring apparatus includes: an antenna assembly including at least one antenna, the antenna assembly being disposed close to an object; a signal generator configured to generate a high-frequency signal; and a displacement detection circuit configured to detect a physical displacement of the object based on the high-frequency signal, wherein the at least one antenna includes: a main antenna to be supplied with the high frequency signal; and a parasitic element to which the high frequency signal is not supplied.

A modal antenna assembly is provided. The modal antenna includes an antenna element comprising a curved conical portion and a top portion, the top portion comprising an undulating annular ring disposed on the curved conical portion. The modal antenna further includes a parasitic element positioned at least partially within a gap defined in the curved conical portion of the antenna element.

Provided is a semiconductor device capable of suppressing the operation of a parasitic element having a field plate as a structural element. The present invention is provided with: a base of a first conductivity type; a first well region of a second conductivity type, which is provided in the base body, and in which a high-side circuit is formed; a first withstand voltage region of a second conductivity type provided annularly around the first well region, the impurity concentration of the first withstand voltage region being lower than that of the first well region; a second voltage-withstanding region of the first conductivity type, which is in contact with the first voltage-withstanding region and is annularly provided on the outer peripheral side of the first voltage-withstanding region; a first level shift element provided to include a portion of the first withstand voltage region; a first separation region of the first conductivity type provided so as to surround the periphery of the first level shift element; and a field plate provided above the first withstand voltage region and above the first separation region via an insulating film, the first distance between the field plate and the first separation region being greater than the second distance between the field plate and the first withstand voltage region.

An antenna comprises first and second radiating elements that are configured to operate in respective first and second operating frequency bands, and a parasitic element that includes a overlapping first and second conductive paths. The first conductive path includes a plurality of first segments and the second conductive path includes a plurality of second segments. A subset of the first segments overlap respective ones of the second segments to form a plurality of pairs of overlapping first and second segments and at least some of these pairs are configured so that an instantaneous direction of a first current formed on the first segment in response RF radiation emitted by the second radiating element will be opposite an instantaneous direction of a second current formed on the second segment in response to the RF radiation emitted by the second radiating element.

This invention provides a wideband airspace radiation device and a wideband anti-unmanned system. The wideband airspace radiation device includes a mounting plate; a first-band radiator is arranged at the center of the mounting surface to provide omnidirectional coverage of the first band; several parasitic elements are arranged circumferentially along the first-band radiator; the second-band radiator employs directional antenna elements, with at least two second-band radiators symmetrically arranged on both sides of the first-band radiator; wherein the parasitic elements are located between the first-band and second-band radiators, and the parasitic elements are used both to guide the electromagnetic field distribution of the first-band radiator and to reflect and guide the electromagnetic waves emitted by the second-band radiator; the several second-band radiators achieve omnidirectional coverage of the second band in a back-to-back configuration. The wideband airspace radiation device provided by this disclosure can eliminate the coverage blind spots of multi-band combined omnidirectional radiators, achieving effective protection of targets.

This invention discloses a high-efficiency power amplifier with extended harmonic modulation bandwidth and its modulation method. A harmonic control circuit unit is added to the input terminal of the final stage die of the power amplifier. The extended harmonic control unit includes a second harmonic modulation circuit and a first parasitic element of the power amplifier back hole. The second parasitic element of the source back hole of the final stage transistor participates in modulation. Considering the parasitic effect of the power amplifier and the back hole at the source of the die, the harmonic modulation bandwidth is further widened by adjusting the harmonic control circuit unit, which effectively improves the working efficiency of the amplifier.

The invention discloses a multi-defect fault modeling method and device in a standard unit. The method comprises the following steps: acquiring a DSPF netlist of the standard unit; converting the DSPF netlist into a switch-level Verilog netlist according to a transistor connection relationship in the DSPF netlist, and constructing a directed graph of a standard cell; selecting a multi-defect fault modeling area on a standard unit according to layout information of the standard unit in the DSPF netlist, and determining a plurality of target interconnection lines influenced by parasitic elements in the multi-defect fault modeling area; according to the directed graph, determining a front-and-back logic connection relation of the multiple target interconnection lines, and according to the front-and-back logic connection relation, determining input and output of a multi-defect fault model to be established; and according to the input, the output and the multiple target interconnection lines, generating a multi-defect fault model so as to solve the problem that the existing fault model cannot completely cover multi-defect fault behaviors, and finally, the diagnosis result precision and the resolution are very low.

The present disclosure refers to a radome assembly, wherein the radome assembly includes a radome and parasitic components for a radiating component, characterized in that the radome itself has a hollow structure, wherein at least one receiving compartment is formed through the hollow structure, wherein the parasitic components are arranged in the receiving compartment. In addition, the present disclosure also refers to a base station antenna including the radome assembly. (Fig. 2a)

Even when mounted on a dielectric panel, it reduces the non-uniformity of the radiation pattern compared to conventional methods. [Solution] The antenna device 1 comprises an antenna module 10 configured as a microstrip antenna including planar feeding elements 14, 16 and a ground conductor 12, and strip-shaped parasitic elements 22, 23. The parasitic elements 22, 23 have a length of 3 / 4 or more of the operating wavelength λ of the antenna device 1. At least a portion of the parasitic elements 22, 23 is at a distance of 1 / 4 to 3 / 4 of the operating wavelength λ of the antenna device 1 from the ground conductor 12.

A method and apparatus for verification of an integrated circuit are provided. The method comprises obtaining simulation results of a first netlist and a layout-extracted netlist comprising parasitic elements. These elements may include parasitic resistors, capacitors, lateral bipolar transistors, field-effect transistors, substrate or well resistances, thermal models, and mechanical stress distributions. Parasitic elements are selectively included in a second netlist based on estimated electrical disturbances derived from simulation data and on contextual factors such as node impedance, node sensitivity, circuit hierarchy, and mode of operation. The method further includes checking whether parasitic elements exceed maximum electrical ratings and enables selective extraction to reduce simulation complexity. The apparatus comprises systems and executable instructions for implementing the method, including parasitic selection, extraction, and rating verification.

This document describes a waveguide with radiation slots and parasitic elements for asymmetrical coverage. An apparatus may include a waveguide for providing asymmetrical coverage in an azimuth plane. The waveguide includes a hollow channel containing a dielectric and an array of radiation slots through a surface that is operably connected with the dielectric. The waveguide includes an array of parasitic elements positioned on or in the surface and offset from a longitudinal side of the array of radiation slots. The radiation slots and parasitic elements configure the described waveguide to focus an antenna radiation pattern that provides an asymmetrical coverage to focus on a particular portion within the antenna field-of-view.

The application discloses a P-waveband broadband characteristic planar dipole antenna and belongs to the technical field of decimeter wave radio frequency front-end devices. A pair of printed planar dipoles composed of a half-elliptical part and a rectangular part and respectively located on the upper and lower surfaces of a dielectric substrate form the main radiation structure of the antenna. A metal base is composed of a metal side wall and a metal ground back plate, the metal side wall plays a role of supporting the dielectric substrate and also plays a role of a parasitic element, the current of the dipole is coupled to the parasitic element metal side wall, the current is avoided from being concentrated in the center of the dipole patch, and therefore the impedance bandwidth of the antenna is improved. The antenna has good radiation performance at 0.4 GHz, 0.5 GHz, 0.6 GHz, 0.7 GHz and 0.8 GHz, and the antenna can be widely applied to P-waveband wireless communication systems with requirements of broadband, low profile and stable performance.

The invention discloses a P-band broadband characteristic plane dipole antenna, and belongs to the technical field of decimetric wave radio frequency front-end devices. The main radiation structure of the antenna is formed by a pair of printing plane dipoles which are respectively arranged on the upper surface and the lower surface of the dielectric substrate and are formed by mixing semi-elliptical parts and rectangular parts. The metal base is jointly composed of a metal side wall and a metal ground backboard, the metal side wall plays a role in supporting the dielectric substrate and also plays a role in a parasitic element, current of the dipole is coupled to the metal side wall of the parasitic element, the current is prevented from being concentrated in the center of a dipole patch, and therefore the impedance bandwidth of the antenna is improved. The antenna has good radiation performance at 0.4 GHz, 0.5 GHz, 0.6 GHz, 0.7 GHz and 0.8 GHz, and the antenna can be widely applied to a P-band wireless communication system having requirements for broadband, low profile and stable performance.

This document presents devices, systems, and procedures for an antenna system that can be used not only for wireless communication but also for other antenna-based applications such as proximity measurement, distance measurement, and angle of arrival measurement. The antenna system comprises a variety of antenna groups, including a first and a second antenna group. The first antenna group includes a parasitic element and a radiating element, fed by one antenna connector. The second antenna group includes a second parasitic element and a second radiating element, fed by a second antenna connector. The antenna system also includes a base plate connected to both the first and second antenna groups. The first antenna group can be separate from and mirrored by the second antenna group.

The invention relates to a preparation method of a dual-polarization packaging antenna for a 5G millimeter wave terminal, and relates to the technical field of antennas, in particular to an antenna which is composed of an upper-layer composite substrate and a lower-layer composite substrate, the upper-layer composite substrate is arranged at the upper end of the lower-layer composite substrate, the whole antenna is divided into five layers from bottom to top, namely an M1 layer, an M2 layer, an M3 layer, an M4 layer and an M5 layer, and the M1 layer, the M2 layer, the M3 layer, the M4 layer and the M5 layer are arranged on the lower-layer composite substrate. The upper-layer composite substrate is an M5 layer; the thickness of the upper layer composite substrate is 0.9 mm; the thickness of the lower-layer composite substrate is 0.6 mm, and meanwhile the length of the lower-layer composite substrate is 7 mm. The patch antennas with parasitic elements are used in the same layer to improve the bandwidth of the antenna, so that the number of layers, increased by using stacked patches, in the antenna is reduced, the antenna is excited by two feeds with opposite phases, the bandwidth is increased, feed radiation is reduced, a matched feed network is further designed, and the bandwidth is increased. And the matching network is applied to a single-layer patch antenna with parasitic elements.