18 results about "Monopole antenna" patented technology

This invention belongs to the field of electronic connector technology, and particularly relates to an electronic connector with antenna function and its anti-interference method, comprising: a metal shell, an insulating body fixedly installed inside the metal shell, a connecting plug on one side of the insulating body, a conductive terminal group on the connecting plug, a PCB board on the other side of the insulating body, a radiating antenna on the PCB board, a buffer plate on the periphery of the connecting plug, and a buffer pad fixedly installed on one side of the buffer plate; a buffer assembly, located inside the metal shell, for buffering the buffer plate; the invention adopts a monopole antenna topology structure, and with the design of no radiator and PCB ground short-circuit pin, it significantly reduces the coupling of USB3.x ground noise to the antenna resonant structure, effectively avoids noise interference in the 2.4-2.5GHz band, significantly improves the stability and consistency of 2.4GHz band wireless communication on different USB3.x hosts, and adapts to complex host environments.

The embodiment of the application provides a magneto-electric monopole antenna unit, a magneto-electric monopole antenna array, an antenna and equipment, and belongs to the technical field of wireless communication. The antenna unit comprises a first dielectric substrate, a monopole radiator, a microstrip feed line, a metal reflector plate, a short-circuit metal column and two ground patches. It generates an electric monopole mode through the monopole radiator excitation, and generates a magnetic monopole mode through the short-circuit metal column, the ground patch and the reflector plate, and the two modes work together to realize wideband radiation and widen the beam width. The coupled currents on the two ground patches produce two pairs of opposite electric field components in the far field and offset each other, thereby realizing low cross polarization. The array composed of multiple units is loaded with a metasurface above, which significantly improves the port isolation by introducing a reflection path opposite in phase to the original coupling path. The application solves the technical problem that it is difficult to simultaneously realize wide-angle scanning, low cross polarization and high isolation in a wide frequency band.

The invention provides a printed high-isolation multi-feed antenna. A multi-feed antenna apparatus includes a monopole antenna having an antenna portion, a first antenna extension having a first length extending from the antenna portion, a second antenna extension having a second length extending from the antenna portion, the second length being less than the first length; the slot antenna comprises a first slot with a third length and a second slot with a fourth length, and the fourth length is larger than the third length; a first antenna feeder coupled to the monopole antenna; a second antenna feeder coupled to the slot antenna; and a ground plane common to the monopole antenna and the slot antenna.

The application discloses a kind of based on double-ridge substrate integrated waveguide and microstrip monopole antenna feed structure multiplexing co-boresight antenna, including double-ridge substrate integrated waveguide, surface plasmon polariton structure, Vivaldi radiator, metal grid array and integrated coaxial feed port, antenna uses multilayer stacking structure, surface plasmon polariton structure works as monopole in microwave frequency band, and high frequency and metal grid array jointly constitute metasurface lens;Vivaldi radiator is fed by double-ridge substrate integrated waveguide, for high-frequency end emission radiation;Two frequency bands are excited in orthogonal mode by integrated coaxial port and waveguide port respectively.The application is suitable for 5G / 6G base station, satellite communication and the like system, and has the characteristics of wide bandwidth, high isolation and structure multiplexing under compact profile.

In some embodiments, a radio frequency identification (RFID) system may include at least one Ultra High Frequency (UHF) antenna component, a conductive loop having a largest dimension that is smaller than the wavelength of radiation transmitted at a Microwave Frequency (MW). The conductive loop may define a gap and an RFID chip may be electrically coupled to the conductive loop. The conductive loop may be configured to be resonant at an Ultra High Frequency (UHF) and less resonant at Microwave Frequency (MW). The antenna component may be selected from the group consisting of a dipole antenna, a monopole antenna, a loop antenna, or a slot antenna.

This application discloses an antenna assembly and a network device, relating to the field of antenna technology. The aim is to improve the performance of the antenna assembly. Specifically, the antenna assembly includes a monopole antenna for radiating electromagnetic waves at a first center frequency and a second center frequency. The monopole antenna includes a first stub and a second stub. The first stub is connected to a signal line. The second stub includes a main arm, two first arms, and two second arms. One end of each first arm is connected to the main arm, and one end of each second arm is connected to the main arm. The main arm is connected to a ground wire. The length of the first arm is 0.35 to 0.55 times λ1, where λ1 is the dielectric waveguide wavelength corresponding to the first center frequency; the length of the second arm is 0.45 to 0.65 times λ2, where λ2 is the dielectric waveguide wavelength corresponding to the second center frequency. This antenna assembly can improve the stability of multi-link operation in WiFi 7 systems and optimize the radiation pattern.

Embodiments of the present application relate to the technical field of antennas. Disclosed are an antenna assembly and a network device, aiming at improving the performance of the antenna assembly. The specific solution is as follows: an antenna assembly comprises a monopole antenna used for radiating electromagnetic waves of a first center frequency and a second center frequency, wherein the monopole antenna comprises a first branch and a second branch; the first branch is connected to a signal line; the second branch comprises a main arm, two first secondary arms, and two second secondary arms; one end of each first secondary arm is connected to the main arm, one end of each second secondary arm is connected to the main arm, and the main arm is connected to a ground line; the length of each first secondary arm ranges from 0.35λ1 to 0.55λ1, λ1 being a dielectric waveguide wavelength corresponding to the first center frequency; and the length of each second secondary arm ranges from 0.45λ2 to 0.65λ2, λ2 being a dielectric waveguide wavelength corresponding to the second center frequency. The antenna assembly can improve the stability of multi-link operations of a WiFi7 system, and optimize the radiation pattern.

This invention discloses an integrated sensing and communication monopole antenna, belonging to the field of antenna and microwave technology. The antenna consists of a two-dimensional sector monopole antenna and a ground plane. The two-dimensional sector monopole antenna is placed vertically above the ground plane and connected to it via a coaxial cable. The main element can be tuned to operate using a mode adjustment device, achieving not only multi-mode resonant broadband characteristics but also continuous zero-directional frequency scanning characteristics (sensing function) in its elevation plane and stable unidirectional backscattering characteristics (communication function) in its azimuth plane, thus enabling the unit antenna to achieve integrated sensing and communication functions. This invention features wide bandwidth, light weight, and simple structure, and has broad application scenarios in the development of future low-complexity, high-performance intelligent radio systems.

A broadband tapered monopole antenna includes a counterpoise that is oriented horizontally and a planar radiator that is oriented vertically. The planar radiator is bounded by a curved edge extending between first and second vertices, a first edge adjacent to the curved edge, a second edge adjacent to the first edge, and a third edge adjacent to both the second edge and the curved edge. The first edge extends vertically between the second vertex and a third vertex. The second edge extends horizontally between the third vertex and a fourth vertex. The third edge extends vertically between the fourth vertex and the first vertex. A gap width between the curved edge and the planar counterpoise increases monotonically between a minimum gap width at the first vertex and a maximum gap width at the second vertex. The planar radiator has a maximum height that is greater than the maximum gap width.

The utility model provides a kind of half-wave folded dipole antenna.The half-wave folded dipole antenna includes: shell;Mounting port, the mounting port is opened in the top of shell, rotating assembly is installed in the inside of mounting port, the top of rotating assembly is equipped with mounting head, the both ends of mounting head are fixedly connected with cross bar, the outer surface of cross bar is equipped with multiple double-section backfolded dipoles, the both ends of each double-section backfolded dipole are fixedly connected with sealing block, the front of mounting head is equipped with signal line;Two connecting rods, two The connecting rod is fixedly connected on the both sides of mounting head, the other end of two The connecting rod is fixedly connected with mounting plate.The half-wave folded dipole antenna provided by the utility model realizes frequency control orientation, wideband matching and efficient radiation three-in-one optimization by the design of three-element coupling structure of double-section backfolded dipole, conductive inhibitor and ground, which is conducive to reducing the interference of vibration wave band and improving signal stability.

A method for fine-tuning the performance of an antenna of the folded monopole type fixed within a vehicle, the antenna having a support body, which is substantially flat and is arranged between a chassis and a body of the vehicle, and a conducting element, which is folded a plurality of times along the support body, and being characterized by nominal values of a plurality of performance parameters. According to such method, after having mounted the antenna in the vehicle, one or more of the performance parameters are measured, the measured values are compared with the corresponding nominal values to identify any deviations between the measured values and the nominal values, at least one pad of dielectric or magnetic or mixed dielectric-magnetic material is attached in at least one respective position of the antenna, such position being determined by deviations between the measured values and the corresponding nominal values.

A monopole antenna includes an antenna portion including a monopole structure disposed perpendicular to a ground surface; a signal feeding portion configured to provide a signal to be fed to the antenna portion; a signal transmission portion disposed parallel to the ground surface and connected to the antenna portion and the signal feeding portion to transmit the signal to the antenna portion; and a base disposed between the ground surface and the signal transmission portion to support the signal transmission portion, wherein the antenna portion includes a shape in which a plurality of cylinders with different radii are connected.

Provided is a technology capable of improving uniformity of a plasma density. This plasma generating device is provided with: a first helical coil structure having a first helical shape and including a first inner monopole antenna disposed along the first helical shape, and a first outer monopole antenna disposed along the first helical shape to be spaced apart from the first inner monopole antenna; a second helical coil structure having a second helical shape and including a second inner monopole antenna disposed so as to nest within the first helical coil structure on the same plane and disposed along the second helical shape, and a second outer monopole antenna disposed along the second helical shape to be spaced apart from the second inner monopole antenna.

Disclosed herein are exemplary embodiments of omnidirectional antenna assemblies including broadband monopole antennas. In exemplary embodiments, the antenna assembly includes a broadband monopole antenna comprising stamped and folded elements. The antenna assembly is configured to be operable with high omnidirectional pattern conformity, e.g., at frequencies from about 617 megahertz (MHz) to about 7125 MHz or frequencies from about 698 megahertz (MHz) to about 7125 MHz, etc.

This invention provides a universal dual-band UAV data link antenna, including an RF connector and a reflector plate oscillator assembly. The RF connector is connected to the reflector plate oscillator assembly. The reflector plate oscillator assembly is a one-piece molded structure, comprising a reflector plate, a monopole antenna element, and an inverted-F antenna element. The RF connector is connected to the antenna interface of the RF front end via a feed line. The monopole antenna element operates in the L-band, and the inverted-F antenna element operates in the S-band. The dual-band UAV data link antenna has adjustable settings for the feed position, the monopole antenna element, and the inverted-F antenna element. The dual-band UAV data link antenna also has expansion settings. The advantages of this invention are: small size, light weight, minimal impact on aerodynamic appearance, effectively reducing installation impact; flexible, easy to use, and expandable, giving it strong versatility.

Described herein are integrated cables and magnets operating as radiating antenna in a notebook or laptop computer, a magnet in the base of the laptop computer provides a latching force with a magnet in the antenna. In conventional laptop mode, the antenna functions as a monopole. In tablet mode and closed mode, the magnets can be sized, and placed to provide directional control.

One or more button cells can be used in on-body medical devices, such as drug delivery devices, to act as an antenna for wireless communications. Since the one or more button cells already exist in the on-body medical device, the antenna does not require additional real estate on a printed circuit board. In some example embodiments, a single button cell is used as an antenna, while in other embodiments, multiple button cells are used as an antenna. For example, a single button cell can be used as part of a monopole antenna. Multiple button cells can be used as part of a dipole antenna.

This invention discloses an optically transparent fractal monopole antenna for Bluetooth ISM and 5G Sub-6GHz, belonging to the fields of microwave antenna design and transparent optoelectronic technology. The antenna includes a transparent laminated composite dielectric substrate, a transparent metal mesh radiating layer disposed on its upper surface, and a coplanar waveguide feeding structure. The transparent laminated composite dielectric substrate consists of a PMMA substrate and a PET film from bottom to top. The transparent metal mesh radiating layer constitutes a ring-based iteratively stacked fractal monopole radiator, which is generated through a three-order iterative fractal process: the first order is an outer ring, the second order is eight intersecting stacked inner rings formed by scaling and rotation, and the third order is a petal-shaped continuous radiating surface formed by filling the overlapping region and connecting the central hollow region. This invention achieves continuous broadband coverage of the core frequency bands of Bluetooth ISM and 5G Sub-6GHz within a compact size, possessing both excellent optical transparency and stable radiation performance.