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

Active Publication Date: 2013-12-25
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the impedance bandwidth of the existing dielectric integrated waveguide slot array antenna is very narrow, the present invention further proposes a variable slot length broadband traveling wave slot array antenna with a radial load

Method used

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

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specific Embodiment approach 1

[0007] Specific implementation mode one: combine Figure 1 to Figure 6 To illustrate this embodiment, the variable slot length broadband traveling wave slot array antenna with a radial load in this embodiment includes a radiating metal layer 1, a first dielectric plate 2, a feeding metal layer 3, a ridge metal layer 4, a second Dielectric plate 5, bottom metal layer 6, trapezoidal metal layer 7, elongated metal layer 8, first metal disc 9 and second metal disc 10, first dielectric plate 2 and second dielectric plate 5 are rectangular plates , the feed metal layer 3 is a strip-shaped metal sheet, the ridge metal layer 4 is a rectangular metal sheet, the radiation metal layer 1, the first dielectric plate 2, the feed metal layer 3, the ridge metal layer 4, the second dielectric plate 5, The bottom metal layer 6 is stacked sequentially from top to bottom, the feed metal layer 3 is located in the middle of the lower surface of the first dielectric plate 2, and the feed metal layer...

specific Embodiment approach 2

[0008] Specific implementation mode two: combination Figure 1 to Figure 5 Describe this embodiment, the length of the radiating metal layer 1 of the variable slot length broadband traveling wave slot array antenna with a radiating load described in this embodiment is 248 mm, the width of the radiating metal layer 1 is 47 mm, and the thickness of the radiating metal layer 1 is The length of the long base of the trapezoidal metal layer 7 is 4.7 mm, the length of the short base of the trapezoidal metal layer 7 is 1.5 mm, the height of the trapezoidal metal layer 7 is 15 mm, and the thickness of the trapezoidal metal layer 7 is 0.017 mm. mm~0.035mm, the width of the strip-shaped metal layer 8 is 1.5mm, the thickness of the strip-shaped metal layer 8 is 0.017mm~0.035mm, the radius of the first metal disc 9 is 10.5mm, the first metal disc 9 The thickness of the second metal disc 10 is 0.017 mm to 0.035 mm, the radius of the second metal disc 10 is 10.5 mm, and the thickness of the ...

specific Embodiment approach 3

[0010] Specific implementation mode three: combination Figure 1 to Figure 5 Describe this embodiment, the length of the first dielectric plate 2 of the variable slot length broadband traveling wave slot array antenna with a radial load described in this embodiment is 297mm, the width of the first dielectric plate 2 is 47mm, and the first dielectric plate The thickness of 2 is 1.56mm-1.63mm, and the relative dielectric constant of the first dielectric plate 2 is 4.4-4.6.

[0011] The technical effect of this embodiment is: the selection of the thickness of the dielectric board is the size of the common printed board dielectric thickness, which can reduce the production cost of the antenna. The relative permittivity and width of the dielectric plate are selected to ensure that the antenna can work in the C-band, and the length of the dielectric plate is selected to ensure that there are 8 slots for radiation. Other compositions and connections are the same as those in Embodime...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/00H01Q13/10
Inventor 林澍王立娜赵志华王力卓罗晓王也
Owner HARBIN INST OF TECH
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