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Thin-substrate slot-line planar horn antenna

A horn antenna and thin substrate technology, applied in waveguide horns, circuits, etc., can solve the problems of large patch size and narrow operating frequency band, and achieve the effect of small feeding loss, compact structure and reduced size

Inactive Publication Date: 2014-02-19
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Some existing antennas load a patch in front of the planar horn antenna to improve the radiation of the thin substrate planar horn antenna, but the size of the loaded patch is large and the working frequency band is narrow

Method used

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  • Thin-substrate slot-line planar horn antenna

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Embodiment Construction

[0016] The embodiment that the present invention adopts is: thin substrate groove line planar horn antenna comprises the microstrip feeder 2 that is arranged on the dielectric substrate 1, substrate integrated horn antenna 3 and a plurality of groove line horns 4; Said microstrip feeder 2 The first port 5 of the antenna is the input and output port of the antenna, and the second port 6 of the microstrip feeder 2 is connected to the substrate integrated horn antenna 3; the substrate integrated horn antenna 3 is formed by the first metal plane 7 located on one side of the dielectric substrate 1 , the second metal plane 8 located on the other side of the dielectric substrate 1 and two rows of metallized via-hole horn sidewalls 9 passing through the dielectric substrate 1 to connect the first metal plane 7 and the second metal plane 8, the substrate integrates the horn antenna 3 The width between the horn sidewalls 9 of the two rows of metallized via holes gradually increases to fo...

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Abstract

The invention provides a thin-substrate slot-line planar horn antenna and relates to a horn antenna. The thin-substrate slot-line planar horn antenna comprises a micro-strip feeder line (2), a horn antenna body (3) and multiple slot-line horns (4) which are located on a dielectric substrate (1), wherein the horn antenna body (3) consists of a first metal plane (7), a second metal plane (8) and two rows of metalized via hole horn side walls (9). The horn antenna body (3) is provided with an odd number of metalized via hole arrays (11) and an even number of dielectric-loaded waveguides (14), and each of the dielectric-loaded waveguides (14) on the caliber face (10) of the horn antenna body (3) is connected with one of the slot-line horns (4). The polarization direction of an antenna radiation field is parallel to the substrate. The thin-substrate slot-line planar horn antenna can be manufactured by using the thin substrate and is high in gain, low in cost and compact in structure.

Description

technical field [0001] The invention relates to a horn antenna, in particular to a planar horn antenna with slot lines on a thin substrate. Background technique [0002] Horn antennas are widely used in systems such as satellite communications, ground microwave links, and radio telescopes. However, the huge geometric size of the three-dimensional horn antenna restricts its application and development in planar circuits. In recent years, the proposal and development of substrate-integrated waveguide technology have greatly promoted the development of planar horn antennas. The substrate-integrated waveguide has the advantages of small size, light weight, easy integration and fabrication. The planar substrate-integrated waveguide horn antenna based on the planar substrate-integrated waveguide not only has the characteristics of the horn antenna, but also realizes the miniaturization and light weight of the horn antenna, and is easy to integrate in the microwave and millimet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q13/02
Inventor 殷晓星赵洪新苏长江
Owner SOUTHEAST UNIV
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