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Thin Substrate Phase-Corrected Element Planar Horn Antenna

A horn antenna and phase correction technology, applied in waveguide horns, circuits, etc., can solve the problems of low gain, narrow operating frequency band, phase asynchrony, etc. of the horn antenna, and achieve correct phase inconsistency, small feed loss, and reduced size. Effect

Inactive Publication Date: 2016-03-23
SOUTHEAST UNIV
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  • 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
In addition, the gain of the traditional substrate-integrated waveguide planar horn antenna is relatively low. The reason is that due to the continuous opening of the horn mouth, the phase is out of sync when the electromagnetic wave propagates to the horn aperture surface, and the radiation directivity and gain are reduced.
At present, methods such as dielectric loading and dielectric prisms have been used to correct the horn aperture field, but these phase alignment structures increase the overall structural size of the antenna

Method used

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  • Thin Substrate Phase-Corrected Element Planar Horn Antenna

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Embodiment Construction

[0021] The embodiment adopted in the present invention is: the thin substrate phase correction dipole planar horn antenna includes a microstrip feeder 2 arranged on a dielectric substrate 1, a substrate integrated horn antenna 3 and a plurality of dipoles 4; the microstrip feeder 2 The first port 5 is the input and output port of the antenna, and the second port 6 of the microstrip feeder 2 is connected with the substrate-integrated horn antenna 3; the substrate-integrated horn antenna 3 consists of the first metal plane 7, The second metal plane 8 located on the other side of the dielectric substrate 1 is composed of 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, and the horn antenna 3 is integrated on the substrate. The width between the horn side walls 9 of the two rows of metallized via holes gradually increases to form a horn-shaped opening, and the end of the open...

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Abstract

The invention relates to a planar horn antenna with a thin substrate phase correction dipole and relates to a horn antenna. The antenna includes a microstrip feeder (2), a horn antenna (3) and a plurality of dipoles (4) on a dielectric substrate (1), and the horn antenna (3) consists of a first metal plane (7), a second metal plane ( 8) and two rows of metallized via hole horn sidewalls (9), the horn antenna (3) has a metallized via hole array (11) and a dielectric filled waveguide (14), on the aperture surface of the horn antenna (3) ( 10), each dielectric-filled waveguide (14) is connected with an oscillator (4). Electromagnetic waves can reach the vibrator in the same phase and then radiate, and the polarization direction of the 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 planar horn antenna with a thin substrate phase correction vibrator. 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 an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q13/02
Inventor 赵洪新殷晓星杨亮
Owner SOUTHEAST UNIV
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