5 results about "Dipole array" patented technology

This invention discloses a design method and structure for a half-mode dielectric ridge parallel plate waveguide dual-beam wide-angle scanning leaky antenna based on PCB technology. Manufactured using a fully printed circuit board process, it includes a core structure of a half-mode dielectric ridge parallel plate waveguide transmission line formed by laminating three dielectric substrates, a metallized via array disposed at the edge of the waveguide's non-radiating open aperture to suppress energy leakage, and a periodic dipole array symmetrically arranged on the radiating open aperture side of the waveguide. This invention solves the technical problems of high manufacturing cost, narrow scanning range, and difficulty in implementing dual beams in traditional leaky antennas, providing a low-cost, high-performance, and easily integrated antenna solution.

The invention relates to an antenna device (102) comprising a low-frequency array (104) of low-frequency dipoles (112) having respective centres (112c) aligned on a so-called vertical axis (A1); a high-frequency array (106) of high-frequency dipoles (114) having respective centres (114c) following one another vertically; and a support (115) for the low-frequency dipoles (112) and the high-frequency dipoles (114). The device is characterised in that the high-frequency dipoles (114) are arranged so that the centre (112c) of each low-frequency dipole (112) is positioned vertically between the centres (114c) of a pair (P1; P2) of two high-frequency dipoles (114).

This invention discloses a dual-polarized magnetoelectric dipole array antenna. The array antenna consists of antenna elements and a supporting structure. Multiple antenna elements are arrayed within the supporting structure. Each antenna element includes a radiating structure and a feeding structure. The radiating structure is a multi-layer structure with feeding structures arranged between its layers. The feeding structure employs dual-polarized microstrip feed lines. One side of each of the two microstrip feed lines is bridging and cross-laid on the lower surface of the bottom layer of the radiating structure. The feeding structure also includes two orthogonally arranged H-shaped coupling slots, which are arranged on the upper surface of the bottom layer of the radiating structure. This invention achieves ±45° dual-polarization through H-shaped slot coupling feeding and uses a slot coupling feeding and dual-polarized feed line co-layer design, compressing the antenna profile to 0.12λ0. The operating frequency band covers 3.2–5.36 GHz, the array antenna gain is better than 8 dBi, and the dual-polarization port isolation is better than 23 dB. It can simultaneously meet the requirements of the n78 and n79 frequency bands in 5G communication and is suitable for low-cost, miniaturized 5G base station equipment.

The present invention relates to the technical field of radio frequency communications. Disclosed are a broadband two-dimensional eight-beam switchable annular magnetoelectric dipole array antenna and a design method therefor. The broadband two-dimensional eight-beam switchable annular magnetoelectric dipole array antenna comprises a first four-beam unit and a second four-beam unit which form an eight-beam array antenna; array antennas in the four-beam units are both located on a same horizontal plane and arranged on dielectric substrates, are both in a four-leaf clover shape and differ by 45°, two dielectric substrates are connected, and the bottoms of the dielectric substrates are provided with metal ground planes; shorting pins are provided at the top ends of leaves of the array antennas, and sequentially pass through the array antennas and the dielectric substrates to be connected to the metal ground planes; and coaxial inner conductor metal columns are provided at the junctions of the leaves of the array antennas, pass through the array antennas, the dielectric substrates and the metal ground planes, and are connected to feed ports. The present invention provides a beam switching antenna which is small, has a wider overlapping bandwidth during multi-beam switching, and has more switching states.

The application provides a large-frequency-ratio three-frequency antenna for Wi-Fi / WiGig application, which comprises a first dielectric plate and a second dielectric plate; one side of the first dielectric plate is defined as a front side, and the other side is a back side; the front side of the first dielectric plate is provided with a reflective array surface and a rectangular patch; the back side is provided with a grid patch and a dipole array arranged in a blank area of the grid patch; the grid patch and the dipole array are multiplexed as a floor in the reflective array antenna; one side of the second dielectric plate and opposite to the back side of the first dielectric plate is a metal floor, and the metal floor is provided with a first through hole and a second through hole for feeding the grid patch antenna and the dipole array antenna respectively; the other side of the second dielectric plate is provided with a differential feeding network, a power divider and a band-pass filter; the grid patch antenna, the dipole array and the reflective array antenna in the application have a multiplexing relationship in structure, three-frequency operation can be realized without increasing additional space, and the integration of the antenna structure is improved.