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Circular Polarized Elliptical Beam Circular Array Horn Antenna Unit

An elliptical beam and horn antenna technology, which is applied in the field of circularly polarized elliptical beam circular array horn antenna units, can solve the problems that it is difficult to meet the requirements of four-element circularly polarized array antennas for elliptical beam antenna units, and achieve beam width frequency sensitivity Effects of reduction, ease of machining, and stable phase center

Inactive Publication Date: 2019-03-19
SICHUAN ZHONGCE MICROGRID TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing elliptical beam antenna design cannot realize the 3dB beam width of the broad side close to 90°, and at the same time compress the beam width of the narrow side to about 20°, which is difficult to meet the requirements of the four-element circularly polarized array antenna for the elliptical beam antenna unit

Method used

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  • Circular Polarized Elliptical Beam Circular Array Horn Antenna Unit
  • Circular Polarized Elliptical Beam Circular Array Horn Antenna Unit
  • Circular Polarized Elliptical Beam Circular Array Horn Antenna Unit

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Embodiment Construction

[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0040] Such as Figure 1-4 Shown, a kind of circularly polarized elliptical beam horn antenna unit comprises feeding circular waveguide (7), composite horn mouth surface, mouth surface slot and reflection surface (2) on the outside of composite horn mouth surface, and feeding circular waveguide to The transition section (11) of the compound bell mouth surface. The antenna unit is machined from brass and works in the W band. The antenna unit is connected to the circular polarizer through the standard flange UG387(1).

[0041] The composite bell mouth surface is a rectangle plus two semicircular composite mouth surfaces, in which the length of the long side of the rectangle is 10.37mm, the diameter of the semicircle and the length of the short side of the rectangle are both 2.388mm, and the diameter of the feed circular waveguide is also 2.388m...

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Abstract

The invention discloses a circular-polarized elliptical-beam horn antenna unit belongs to the field of antennas, and specifically relates to a circular-polarized elliptical-beam array horn antenna unit for receiving and emitting radio waves. The antenna unit comprises a feeding circular waveguide, a composite horn mouth surface, a mouth surface groove and a reflection surface outside the composite horn mouth surface and a transition section from the feeding circular waveguide to the composite horn mouth surface. The circular-polarized elliptical-beam horn antenna unit realizes that the width of wide-beams reaches 90 degrees, and the width of narrow beams is compressed to about 20 degrees. Only four units are needed to construct a circular array antenna covering 360 degrees. Wide wave beams can be realized within a wide frequency band scope, and the circular-polarized purity is high.

Description

technical field [0001] The invention belongs to the field of antennas, and in particular relates to a circularly polarized elliptical beam circular array horn antenna unit, which can be used for both receiving and transmitting radio waves. Background technique [0002] Microwave communication and detection radar systems often require the antenna system to cover 360° in the horizontal direction and use narrow beams in the vertical direction to save energy. The most economical technical form is to use four antenna elements to form a circular array. However, the system often uses 6 elements or 8 elements to form a circular array antenna. The reason is that it is difficult for a single antenna element to achieve a 3dB beamwidth close to 90° within a certain bandwidth range, and it also requires another orthogonal direction to achieve narrow beams. Technical contradictions are also very difficult to resolve. [0003] The elliptical beam antenna is a conventional antenna and has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/24H01Q13/02H01Q15/14
CPCH01Q13/0208H01Q13/0241H01Q15/14H01Q15/24
Inventor 董宇亮王正鹏邓建华
Owner SICHUAN ZHONGCE MICROGRID TECH CO LTD
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