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Dual-frequency and dual-polarization common-aperture waveguide horn planar array antenna

A planar array antenna and dual-polarization technology, which is applied in the field of satellite communication antennas, can solve the problems that it is difficult to realize dual-frequency dual-polarization and common aperture, and achieve the effect of meeting the needs of high-speed business transmission, short length and high antenna gain

Pending Publication Date: 2018-02-02
北京星际安讯科技有限公司
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Problems solved by technology

[0006] In order to at least solve the problem that the planar array satellite antenna in the prior art is not easy to achieve dual-frequency dual-polarization common-aperture, the embodiment of the present invention provides a dual-frequency dual-polarization common-aperture waveguide horn planar array antenna, which consists of multiple The antenna units are arranged in an array on a plane; each antenna unit is composed of a square waveguide horn and a waveguide orthogonal mode coupler

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] see Figure 1 to Figure 7 , an embodiment of the present invention provides a dual-frequency dual-polarization common-aperture waveguide horn planar array antenna, which is formed by arranging a plurality of antenna units 1 in an array on a plane. Each antenna unit 1 includes: a square waveguide horn 11 and a waveguide orthogonal mode coupler 12 , the antenna unit 1 is formed by combining the square waveguide horn 11 and the waveguide orthogonal mode coupler 12 .

[0036] The aperture shape of the square waveguide horn 11 is square, that is, the four sides of the horn are equal in length. Two mutually perpendicular linearly polarized waves can be excited in a square horn, so as to meet the requirements of dual frequency and dual polarization.

[0037] In the Ku-band satellite communication, the transmitting and receiving freq...

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Abstract

The invention provides a dual-frequency and dual-polarization common-aperture waveguide horn planar array antenna, which comprises square waveguide horns, waveguide orthogonal mode couplers, antenna units formed by the square waveguide horns and the waveguide orthogonal mode couplers and an arrangement mode of the plurality of antenna units on the plane, and is characterized in that the horn aperture of each square waveguide horn antenna is square in shape, and the structure of each square waveguide horn antenna is a three-layer step transition square pyramid horn; each waveguide orthogonal mode coupler is an orthogonal mode coupler of a longitudinal coning branch structure, a common port of the waveguide orthogonal mode coupler is connected with a waveguide port of the square waveguide horn to form to form a waveguide horn antenna supporting the dual-frequency and dual-polarization common aperture, namely, an antenna unit; and the antenna units are arranged on the plane so as to forma planar array antenna. The planar array antenna manufactured according to the technical scheme provided by the invention has the characteristics of dual frequency, dual polarization and common aperture.

Description

technical field [0001] The invention belongs to the field of satellite communication antennas, in particular to a dual-frequency dual-polarization common-aperture waveguide horn planar array antenna, especially for use in satellite emergency mobile communications. Background technique [0002] Planar array satellite antennas have been produced and used in a small amount in the world, and a new development trend is being formed, which represents a new direction of current international satellite communication applications. Most of the existing planar array satellite antennas adopt the oscillator microstrip planar array technology and the waveguide slot planar array technology. [0003] The oscillator microstrip planar array antenna radiates electromagnetic waves into the air through the ordered half-wave oscillators arranged on the plate. The RF coupling feed network adopts microstrip circuit technology in microwave technology. [0004] The microstrip used in the vibrator m...

Claims

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Application Information

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IPC IPC(8): H01Q13/02H01Q21/06H01P5/12
CPCH01P5/12H01Q13/0258H01Q21/064
Inventor 杨州元卢曙
Owner 北京星际安讯科技有限公司
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