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Thin Substrate Quasi-Yagi Planar Horn Antenna

A horn antenna, 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 effect of small feed loss, high gain and compact structure

Inactive Publication Date: 2016-03-23
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 Quasi-Yagi Planar 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 thin-substrate quasi-Yagi planar horn antenna relates to a horn antenna. The antenna includes a microstrip feeder (2), a horn antenna (3) and multiple quasi Yagi antennas (4) on a dielectric substrate (1). The horn antenna (3) consists of a first metal plane (7), a second metal It consists of a plane (8) and two rows of metallized via horn side walls (9). There are metallized via hole arrays (11) and multiple dielectric filled waveguides (14) in the horn antenna (3). In the horn antenna (3) On the aperture surface (10), each dielectric-filled waveguide (14) is connected with a quasi-Yagi antenna (4) composed of an active vibrator (17) and a passive vibrator (18). The polarization direction of the antenna radiation field is parallel to the substrate. The antenna can be fabricated using a thin substrate and has high gain, low cost and compact 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 plan...

Claims

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Application Information

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