7results about How to "Increase antenna gain" patented technology

The present invention relates to a digital multi-beam phased array for mobile phone direct connection and transparent transmission of payload. The digital multi-beam phased array includes a plurality of digital array standard components, a final beam forming processing unit and an onboard base station. The digital array standard component processes the uplink signal sent by the mobile phone direct connection to form an uplink primary beam, and processes the downlink final beam sent by the final beam forming processing unit before sending it to the mobile phone direct connection; the final beam forming processing unit performs beam forming processing on the uplink primary beam and the modulated downlink signal sent by the onboard base station respectively, and the output uplink final beam and downlink final beam are sent to the onboard base station and the corresponding digital array standard component respectively; the onboard base station receives and modulates the downlink signal sent by the ground core network, sends it to the final beam forming processing unit after modulation, and demodulates the uplink final beam and sends it to the ground core network. The use of this method can improve the antenna gain of the mobile phone direct connection to the satellite and the signal transmission efficiency.

The invention relates to a radio frequency system, a communication device and a communication control method, and the radio frequency system comprises a radio frequency circuit which is used for supporting the transmission processing of a radio frequency signal; the tuning circuit is connected with the radio frequency circuit and the antenna, the tuning circuit is configured with a plurality of tuning parameters, and when the tuning parameters are different, the directional gains of the antenna are different; the processing circuit is respectively connected with the radio frequency circuit and the tuning circuit, and is used for controlling the tuning circuit to adjust to a target tuning parameter under the condition that the communication equipment is in a preset communication scene, so as to increase the directional gain of the antenna, the communication capability of the communication equipment in the preset communication scene is lower than the communication capability of the communication equipment in the normal communication scene. Through the radio frequency system, the antenna gain of the communication equipment in a specific direction can be improved under the condition that the communication equipment is in a special scene, so that the communication equipment has better communication capability in a weak signal scene, and the uplink coverage capability of the communication equipment is improved.

The utility model discloses a kind of multi-band built-in antenna of mobile terminal and mobile terminal, multi-band built-in antenna includes high frequency part, low frequency part, resonance judging part;High frequency part, resonance judging part and low frequency part integrally formed;High frequency part, low frequency part about resonance judging part structure symmetry;High frequency part includes first inverted U type antenna part, first transverse transmission part;First inverted U type antenna part and first transverse transmission part integrally formed, form half-enclosing structure;Low frequency part includes second inverted U type antenna part, second transverse transmission part;Second inverted U type antenna part and second transverse transmission part integrally formed, form half-enclosing structure.Implementation this application, improve antenna gain, increase antenna bandwidth, support WIFI three-frequency FPC antenna, solve the problem that the antenna bandwidth of built-in antenna of existing mobile terminal cannot satisfy the demand of three-frequency antenna high gain.

This disclosure provides a metasurface antenna element, comprising a first metal layer, a first dielectric substrate, a second metal layer, a second dielectric substrate, and a third metal layer stacked sequentially; the second metal layer has various shaped cutouts; the orthographic projections of the first dielectric substrate, the second dielectric substrate, and the second metal layer on a preset surface coincide, and their orthographic projection outlines are all first regular polygons; the orthographic projections of the first metal layer and the third metal layer on the preset surface coincide, and their orthographic projection outlines are all second regular polygons; the side length of the first regular polygon is a first preset multiple of the incident wave wavelength at the center frequency, and the side length of the second regular polygon is a second preset multiple of the incident wave wavelength at the center frequency, wherein both the first preset multiple and the second preset multiple are less than 1. This disclosure also provides an antenna structure.

The invention discloses a net-shaped deployable antenna cable net topological structure optimization method, which comprises the steps of determining geometric parameters, material parameters and electrical parameters of a net-shaped antenna, and calculating an ideal antenna far-area electric field; assigning the number of cable net optimization nodes of the mesh antenna, generating uniformly distributed nodes under the assigned number in the aperture surface of the mesh antenna, and generating an initial value of an optimization model; performing shape finding on the optimization model and calculating the electrical performance of the reflecting surface of the mesh antenna after shape finding to obtain an optimized mesh antenna cable network topological structure; and changing the number of network cable optimization nodes of the mesh antenna, performing network cable topological structure optimization on multiple groups of mesh antennas, comparing multiple groups of optimization results, and selecting an optimal topological structure under the optimal number of nodes. According to the invention, the electrical performance target of high gain and low sidelobe level can be realized under the condition of a small number of nodes, and meanwhile, the uniformity of tension distribution of the cable section is ensured.

The present invention discloses a millimeter wave SIW horn antenna loaded with an EBG surface, belonging to the field of antenna microwave technology. The present invention comprises an upper EBG layer metal plate (4), an upper EBG layer dielectric substrate (1), an upper radiation layer metal plate (5), a radiation layer dielectric substrate (2), a lower radiation layer metal plate (6), a lower EBG layer dielectric substrate (3) and a lower EBG layer metal plate (7) which are pressed together in sequence, and a feed layer metal plate (8) interconnected coplanarly with the upper radiation layer metal plate (5), and a feed layer metal ground (9) interconnected coplanarly with the lower radiation layer metal plate (6); a metal patch array and metallized vias (10) are distributed on the upper EBG layer metal plate (4); the upper and lower EBG layer metal plates have the same structure, and the upper and lower EBG layer dielectric substrates have the same structure; a plurality of SIW horn cavity metallized vias (11) are equivalent to rectangular metal waveguides. The present invention provides a small-caliber millimeter wave SIW horn antenna loaded with an EBG surface, with high front-to-back ratio and high gain.

The present application provides a vehicle antenna, a window glass with the vehicle antenna, and an antenna system. The vehicle antenna includes a conductor plate, a radiating plate disposed opposite the conductor plate, a power supply portion located on a side of the conductor plate with respect to the radiating plate, a connecting conductor connecting the power supply portion and the radiating plate, and first and second elements disposed on both sides of the vehicle in a vehicle width direction, respectively, with respect to the radiating plate. The radiating plate is disposed at an inclination of ±15° or less with respect to a vertical plane perpendicular to a horizontal plane.