Seam-variable large-bandwidth traveling wave seam array antenna with radiation-type load

A slot array antenna and radiation type technology, applied in the direction of slot antenna, antenna, antenna array, etc., can solve the problem of narrow antenna impedance bandwidth, etc., and achieve the effect of wide bandwidth, small size, and easy processing
CN103474785AActive Publication Date: 2013-12-25HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2013-12-25

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Abstract

The invention discloses an array antenna, and particularly relates to a seam-variable large-bandwidth traveling wave seam array antenna with a radiation-type load. The seam-variable large-bandwidth traveling wave seam array antenna with the radiation-type load solves the problem that an existing dielectric integrated waveguide seam array antenna is small in impedance bandwidth. The seam-variable large-bandwidth traveling wave seam array antenna comprises a radiation metal layer, a first dielectric slab, a feed metal layer, a ridge metal layer, a second dielectric slab, a bottom metal layer, a trapezoid metal layer, a strip-shaped metal layer, a first metal wafer and a second metal wafer. Both the first dielectric slab and the second dielectric slab are rectangular slabs, the feed metal layer is a strip-shaped metal sheet, the ridge metal layer is a rectangular metal sheet, and the radiation metal layer, the first dielectric slab, the feed metal layer, the ridge metal layer, the second dielectric slab and the bottom metal layer are sequentially arranged from top to bottom in an overlapping mode. The seam-variable large-bandwidth traveling wave seam array antenna with the radiation-type load is applied to the radio field.
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Description

technical field

[0001] The invention relates to an array antenna, in particular to a variable slot length broadband traveling wave slot array antenna with a radiation load. Background technique

[0002] Dielectric integrated waveguide is a waveguide structure that achieves transmission characteristics similar to metal rectangular waveguides on a dielectric substrate. Since the concept of dielectric integrated waveguide was proposed, this combination of low radiation, low insertion loss and microstrip devices of traditional metal rectangular waveguides New devices with advantages of miniaturization and easy integration are also used to design slot array antennas, which become a research hotspot. With the help of printed circuit technology, low-cost mass production of slot array antennas based on dielectric integrated waveguides becomes possible. The impedance bandwidth of the existing dielectric-integrated waveguide slot array antenna is very narrow (less than 10%), which ha...

Claims

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