Thin substrate phase-position correcting quasi-yagi plane horn antenna

A horn antenna and phase correction technology, which is applied in antennas, waveguide horns, antenna unit combinations with different polarization directions, etc., can solve the problems of low horn antenna gain, narrow working frequency band, large patch size, etc., and achieve phase inconsistency correction , Feed loss is small, the effect of compact structure

Inactive Publication Date: 2014-02-26
SOUTHEAST UNIV
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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
In addition, the gain of the traditional substrate-integrated waveguide planar horn antenna is relatively low. The reason is that due to the continuous open

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  • Thin substrate phase-position correcting quasi-yagi plane horn antenna

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Embodiment Construction

[0021] The embodiment that the present invention adopts is: the thin substrate phase correction quasi-Yagi planar horn antenna includes the microstrip feeder 2 that is arranged on the dielectric substrate 1, the substrate integrated horn antenna 3 and a plurality of quasi-Yagi antennas 4; The first port 5 of the feeder 2 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 plane 7, 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 The width between the horn side walls 9 of the two rows of metallized via holes of the antenna 3 gradually increases to form a horn-shaped opening, and the end of the opening is the aperture surface 10 of the substrate-integrate...

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Abstract

The invention relates to a horn antenna, and discloses a thin substrate phase-position correcting quasi-yagi plane horn antenna. The antenna comprises a micro-strip feeder (2), a horn antenna body (3) and a plurality of quasi-yagi antennas (4), wherein the micro-strip feeder (2), the horn antenna body (3) and the quasi-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 metallization through hole horn side walls (9). Metallization through hole arrays (11) and medium filling waveguides (14) are arranged in the horn antenna body (3). Each medium filling waveguide (14) on a caliber plane (10) of the horn antenna body (3) is connected with the corresponding quasi-yagi antenna (4) composed of an active vibrator (17) and a passive vibrator (18). An electromagnetic wave can reach the quasi-yagi antennas in an in-phase mode to be irradiated, and the polarization direction of a radiation field is parallel to the substrate. According to the antenna, a thin substrate can be used for manufacturing the antenna, and the antenna 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 phase-corrected 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 ...

Claims

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Application Information

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IPC IPC(8): H01Q13/02H01Q19/30H01Q1/38H01Q21/24H01Q3/30
Inventor 赵洪新殷晓星傅晓洁
Owner SOUTHEAST UNIV
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