Abstract:
A wireless device comprising a radiating system that comprises a modular antenna system comprising at least one antenna component, the at least one antenna component including a first multi-section antenna component comprising at least two sections, each of the at least two sections comprising a conductive element; at least one ground plane layer; and a matching network connected to the antenna system for impedance matching to a first frequency range at a port also connected to said matching network. The radiating system is configured to operate in a frequency range of operation including said first frequency range, the first frequency range comprising a first highest frequency and a first lowest frequency, and comprises an antenna system including a first antenna component, comprising at least two sections, featuring a maximum size bigger than /30 times and smaller than 1/5 times a free-space wavelength corresponding to the lowest frequency of operation; wherein the conductive elements comprised in the different sections of the first antenna component are spaced apart by a gap. A modular multi-stage antenna system related to this invention provides flexibility in the allocation of frequency bands at different communication standards and easy of integration in the wireless device hosting it.
Abstract:
Various embodiments provide an antenna device that includes: a metal member configured to have a length that contributes to at least a part of an electronic device; a printed circuit board (PCB) configured to be feed-connected to a preset position of the metal member in order to apply the metal member as an antenna radiator; and at least one electronic component electrically connected to a position different from the feeding position of the metal member and grounded to the PCB, and provide an electronic device that includes the same. Accordingly, the antenna device is grounded to the PCB in a desired position of the metal member by using the basically provided electronic component so that it is possible to exclude a separate electrical connection member, thereby reducing the cost, increasing the use of space, enhancing the degree of freedom of the design of the antenna radiator.
Abstract:
The RFID tag comprises an antenna (11) connected to a wireless communication device (18). The antenna comprises a conductive planar surface and a slot (14) extending at least in a part of said conductive planar surface, the slot (14) forming a non-conductive area of the antenna and defining a first part (12) and a second part (13) of the antenna. The wireless communication device comprises two contact pads (16, 17) being electrically connected respectively each to one of the first and second part of the antenna. The slot comprises a closed end formed by a further conductive part connecting said first and second parts the antenna and further comprises at least one conductive bridge (19-19"', 20, 21-21 ") connecting said first and second parts of the antenna, the conductive bridge allowing to tune the resonance frequency of the tag by varying the length of the electrical path between the pads from the wireless communication device in the antenna.
Abstract:
A circularly polarized microstrip patch antenna (100) comprising a substrate (102) having a top surface (102') and a bottom surface (102"), four asymmetric slits (104), a passive thin strip (106) and a ground plane (110). The four asymmetric slits (104) and the passive thin strip (106) are disposed on the top surface (102') to form a patch (108) and the patch (108) is in electrical connection with the ground plane (110). Further, the substrate (102) having a hole (112) for enabling the electrical connection between the patch (108) and the ground plane (110). Also, the ground plane (110) is coupled with the bottom surface (102") of the substrate (102).
Abstract:
Une antenne fil-plaque (10) comprend un plan de masse (11), au moins un toit capacitif (12), une sonde d'alimentation (13) connectée au toit capacitif (12) et destinée à être reliée à un générateur, et au moins un fil électriquement conducteur de court-circuit (14) reliant le toit capacitif (12) et le plan de masse (11). Le toit capacitif (12) comprend au moins une fente (15) constituée par une ouverture traversant toute l'épaisseur du toit capacitif (12) de sorte à déboucher sur chacune des deux faces opposées du toit capacitif (12) et configurée de sorte que le point de connexion (M1) entre le toit capacitif (12) et la sonde d'alimentation (13) et le point de connexion (M2) entre le toit capacitif (12) et le fil électriquement conducteur de court-circuit (14) sont disposés de part et d'autre de la fente (15).
Abstract:
Disclosed is a dual-band Global Navigation Satellite System antenna with a hollow core. The antenna includes a conductive cylindrical tube with a longitudinal axis. A ground plane, a low-frequency radiator, and a high-frequency radiator are annuli orthogonal to the longitudinal axis. The inner peripheries of the ground plane and the low-frequency radiator are electrically connected to the outer surface of the cylindrical tube. The outer periphery of the high-frequency radiator is electrically connected to the low-frequency radiator. A vertical low-frequency radiating gap is configured between the ground plane and the outer periphery of the low-frequency radiator. A horizontal high-frequency radiating gap is configured between the inner periphery of the high-frequency radiator and the outer surface of the cylindrical tube. In an embodiment, the inner diameter of the cylindrical tube has a value from about 27 mm to about 102 mm, permitting insertion of a post or pole.
Abstract:
The present disclosure generally relates to a device having a capacitance sensor that detects a change in capacitance that occurs in the antenna whenever the antenna is in close proximity to a user's hand and/or head. Following detection of the capacitance change, the capacitance of the antenna may be changed by using a variable capacitor that is coupled to the sensor through a controller.