9 results about "Planar antennas" patented technology

This specification provides one or more embodiments of an antenna structure and a ring-shaped device. The antenna structure includes: a substrate ring; an antenna coil disposed circumferentially on the substrate ring, the antenna coil having a ring antenna sensing region and a planar antenna sensing region, the magnetic field direction of the ring antenna sensing region being arranged along the axial direction of the substrate ring, and the magnetic field direction of the planar antenna sensing region being parallel to a plane perpendicular to the axial direction.

The application relates to an antenna module, a laminated assembly and a vehicle. In the antenna module, the currents on the two feeding branches of a dipole antenna are in and out, so that the currents on the two feeding branches of the same dipole antenna are in phase, the currents on the two radiation branches are in the same direction and in phase, the currents on the radiation branches of multiple dipole antennas are in phase and are transmitted in the same direction, a ring-distributed radiation branch is constructed, a current ring is formed on the multiple radiation branches when a feeding port accesses an excitation signal, and a ring current resonance mode at a target frequency band is supported. Planar antenna arrangement can be performed on any non-conductor plane substrate, when applied to a vehicle, metal arrangement such as a vehicle bumper can be avoided, a single antenna module can support omnidirectional radiation at a target frequency band, the number of antenna modules is reduced, and the antenna cost is reduced.

Antenna element (100, 200, 300, 400, 500, 600, 900), comprising: - a planar antenna electrode (110) with a main surface (112), wherein the main surface (112) of the antenna electrode (110) has at least one depression (114) and at least one elevation (116), - a substrate (640) on which the antenna electrode (110) is formed, and - a ground electrode (810), namely a ground plane, which is arranged on one side of the substrate (640) opposite the antenna electrode (110), - wherein - the antenna electrode (110) and / or at least its main surface (112) has a three-dimensional surface deformation in a third spatial direction which is orthogonal to two spatial directions lateral to the main surface (112), and - the substrate (640) has a has a sloping edge region, such that on one side of the substrate (640) opposite the antenna electrode (110) there is a surface at least partially surrounded by the substrate (640), i.e.a partially enclosed installation space is available,- wherein the sloping edge area forms inclined or vertical side walls of the installation space partially enclosed by the substrate (640), and- wherein the ground electrode (810) is arranged between- the side of the substrate (640) opposite the antenna electrode (110) and- the installation space which is at least partially enclosed.

Systems related to an ultra-wideband dual polarization antenna system. One system includes a first rounded-cornered square planar antenna face, a first plurality of radiating element traces, each of the first radiating element traces extending flexuously from a center of the first rounded-cornered square planar antenna face to a corner edge of the first rounded-cornered square antenna face, and a first plurality of ridged antenna elements electrically coupled to each of the first plurality of radiating element traces extending upward from the first rounded-cornered square planar antenna face. Each of the first plurality of antenna elements are positioned along an edge of the first rounded-cornered square planar antenna face.

The utility model relates to a low-profile horizontal polarization omnidirectional antenna, which comprises a double-sided PCB (printed circuit board) antenna radiator, a plurality of antenna radiators are arranged on the front surface of the double-sided PCB antenna radiator, and gaps between adjacent antenna radiators form a planar Vivaldi antenna pattern shape. The antenna radiators are connected together at the middle position of the double-sided PCB antenna radiator through a middle connecting part to form a petal-shaped metal radiation whole body, and the middle connecting part is conducted and connected with a core wire of the coaxial transmission line for feeding. According to the antenna, the Vivaldi principle is adopted, the four Vivaldi antennas rotate by 90 degrees to be combined, the power divider principle is utilized to divide feed into four branches, the four branches feed the four Vivaldi antennas respectively, and through microstrip impedance matching of the feed branches, the antenna has the advantages of ultra-bandwidth effect, small size and low profile, and meanwhile, the horizontal polarization characteristic is kept.

This invention provides a three-dimensional multi-antenna RFID worker access identification system and dynamic power scheduling method with resistance to metal interference. The system comprises a bottom antenna array and dual-sided pillar antenna groups, forming a three-dimensional read / write envelope area to achieve multi-directional coverage identification of rapidly passing workers and their metal tools. Dynamic power scheduling is employed, using a closed-loop feedback mechanism to correct the identification results in real time, continuously improving the received signal strength of the weakest tags and overall identification stability. This invention breaks through the traditional two-dimensional identification method relying solely on top or side planar antennas, effectively overcoming the problems of missed readings and collisions under conditions of strong metal reflection, dense tags, and rapid personnel passage. It is suitable for high-metal-interference scenarios such as factories and rail transit construction, achieving automated identification and safety management of tool entry and exit.

A corner reflector with modulation arrangement is disclosed. According to one aspect, a corner reflector having three panels includes a plurality of planar antenna elements configured on each panel to receive, modulate and reflect an incident electromagnetic wave. The corner reflector also includes biasing circuitry configured to provide a common bias voltage to each of at least a subset of the plurality of planar antenna elements. The corner reflector further includes at least one diode at each planar antenna element, each diode having a common bias voltage and configurable to be one of forward-biased and reverse-biased according to the common bias voltage.

The present application relates to the technical field of communication system electronic function component manufacturing, and particularly relates to a manufacturing method of a V-band packaged antenna, comprising the following steps: (1) manufacturing a slotted metal core; (2) manufacturing a V-band microstrip antenna board with stepped blind grooves and a metal core by combining the metal core in (1) with a PCB process; (3) completing the interconnection of a transceiver chip and the microstrip antenna board; and (4) installing a waveguide connector. The method effectively solves the problems of parasitic effects caused by bonding, narrow bandwidth of a planar antenna, secondary assembly of a microstrip antenna with a metal structural component, low assembly precision, difficult operation, low reliability of an embedded air cavity, easy high-temperature delamination and the like, and provides a solution for miniaturization, high integration and low cost of a V-band communication antenna assembly, can realize a bandwidth of 57-65GHz, the gain can reach >=12dBi, and the loss is <=0.5dB. Compared with a traditional antenna, the size of the packaged antenna is reduced by more than 50%, can meet temperature cycling of 100 times at-45 DEG C to 75 DEG C, has good processability and reliability, and breaks through the key technical bottleneck for V-band communication.