Millimeter-wave four-polarized frequency scanning antenna

A frequency scanning antenna and quad-polarization technology, which is applied to antenna unit combinations with different polarization directions, slot antennas, circuits, etc., which can solve the problems of difficulty in scanning circularly polarized beams, and achieve low loss, low mutual coupling, and reliability. High performance and stability

Active Publication Date: 2009-09-16
SOUTHEAST UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

It is very difficult to scan circularly polarized beams, mainly because it cannot guarantee excellent axial ratio characteristics in a wide scanning range

Method used

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  • Millimeter-wave four-polarized frequency scanning antenna

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Embodiment Construction

[0019] The millimeter-wave four-polarization frequency scanning antenna in the present invention includes an upper metal copper-clad surface 1, a lower metal copper-clad surface 2, a dielectric substrate 3, a metallized through hole 4, a substrate integrated waveguide 90° directional coupler 5, a base Chip integrated waveguide 16-slot 45° slot array leaky wave antenna 6, substrate integrated waveguide 16-slot-45° slot array leaky wave antenna 7, input port 81, input port 82, input port 83, input port 84; the upper metal is coated with copper The surface 1 and the lower metal-clad copper surface 2 are respectively located on the front and back sides of the dielectric substrate 3, and the metallized through-hole 4 passes through the dielectric substrate 3 and connects with the upper metal-clad copper surface 1 and the lower metal-clad copper surface 2 to form a substrate. Chip-integrated waveguide 90° directional coupler 5, substrate-integrated waveguide 16-slot 45° slot array le...

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Abstract

The invention discloses a millimeter-wave four-polarized frequency scanning antenna, and relates to a multi-polarized frequency scanning antenna capable of being applied in fields such as millimeter-wave wireless communication system, radar detection and the like. An upper-layer metal copper-clad surface (1) and a lower-layer metal copper-clad surface (2) of the antenna are positioned on a front side and a back side of a dielectric substrate (3) respectively; and a metalized through hole (4) pass through the dielectric substrate (3) and is connected with the upper-layer metal copper-clad surface (1) and the lower-layer metal copper-clad surface (2) to form a substrate integrated waveguide 90 DEG directional coupler (5), a substrate integrated waveguide 16-groove 45 DEG slot leaky-wave antenna (6), a first clearance channel (61), a substrate integrated waveguide 16-groove -45 DEG slot leaky-wave antenna (7), and a second clearance channel (71). The whole antenna adopts substrate integrated waveguide for design, can be directly integrated with a radio-frequency circuit, and has the characteristics of low consumption, low cost, easy mass production and the like.

Description

technical field [0001] The invention relates to a multi-polarization frequency scanning antenna applicable to the fields of millimeter wave wireless communication systems and radar detection, and belongs to the technical field of design and manufacture of millimeter wave antennas. Background technique [0002] In various wireless communication and radar systems, the transmission and reception of information depends on the antenna. With the rapid development of modern large-capacity, multi-functional, ultra-broadband integrated information systems, the number of information subsystems carried on the same platform has greatly increased, and the number of antennas required has also increased accordingly. This is in contradiction with the development trend that requires reducing the overall cost of the integrated information system, reducing the weight, reducing the radar cross section of the platform, and achieving good electromagnetic compatibility characteristics. The multi-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q13/18H01Q21/24
Inventor 洪伟程钰间吴柯
Owner SOUTHEAST UNIV
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