Thin-substrate quari-yagi plane horn antenna

A horn antenna and quasi-Yagi technology, applied in waveguide horns, circuits, etc., can solve the problems of large patch size and narrow operating frequency band, and achieve the effects of small feed loss, high gain, and reduced size

Inactive Publication Date: 2014-03-05
SOUTHEAST UNIV
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  • Summary
  • 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 quari-yagi plane horn antenna

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Embodiment Construction

[0016] The embodiment adopted in the present invention is: the thin substrate quasi-Yagi planar horn antenna includes a microstrip feeder 2 arranged on a dielectric substrate 1, a substrate integrated horn antenna 3 and a plurality of quasi-Yagi antennas 4; the 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 form a hor...

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Abstract

The invention relates to a horn antenna, in particular to a thin-substrate quari-yagi plane horn antenna which comprises a micro-strip feeder line (2), a horn antenna body (3) and a plurality of quari-yagi antennas (4), and the micro-strip feeder line (2), the horn antenna body (3) and the quari-yagi antennas (4) are arranged on a dielectric substrate (1). The horn antenna body (3) is composed of a first metal plane (7), a second metal plane (8) and two rows of metalized via hole horn side walls (9), metalized via hole arrays (11) and dielectric-loaded waveguides (14) are arranged in the horn antenna body (3), and each dielectric-loaded waveguide (14) is connected with one quari-yagi antenna (4) composed of an active vibrator (17) and a passive vibrator (18) on the caliber face (10) of the horn antenna body (3). The polarization direction of an antenna radiation field is parallel with the substrate. The antenna can be made through a 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 thin substrate quasi Yagi planar horn antenna. 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 millimeter-wave pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q13/02
Inventor 吴正阳殷晓星赵洪新
Owner SOUTHEAST UNIV
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