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Combined dual-linearly-polarized array antenna

An array antenna and dual-line polarization technology, which is applied in leaky waveguide antennas, antenna unit combinations with different polarization directions, waveguide horns, etc., can solve the problem of large loss of microstrip feed network, unsatisfactory scanning range, and aperture utilization. Low-level problems, to meet the requirements of scanning range, high antenna efficiency, and improve the effect of aperture utilization efficiency

Active Publication Date: 2013-04-24
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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AI Technical Summary

Problems solved by technology

[0003] 1. A dual-polarized antenna can be formed by using waveguide slot array antennas in two directions, but the two polarized antennas cannot share the aperture, so the aperture utilization rate is low, and it cannot be used as a phased array antenna
[0004] 2. Using the waveguide wide-side slot antenna and the narrow-side slot antenna may form a dual-polarized shared aperture, but after the integrated design of the two, the array spacing is at least the sum of the broad side and narrow side of the waveguide. If used as a phase If the array antenna is used, it cannot meet the requirements of the scanning range, so it cannot be used as a phased array antenna
[0005] 3. The shared aperture dual-linear polarized array antenna can be formed by using the microstrip array form, but due to the low efficiency of the microstrip antenna and the large loss of the microstrip feed network, its efficiency is low

Method used

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  • Combined dual-linearly-polarized array antenna
  • Combined dual-linearly-polarized array antenna
  • Combined dual-linearly-polarized array antenna

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Embodiment Construction

[0019] refer to Figure 1 to Figure 4 , the present invention includes a horizontally polarized array antenna 1 and a vertically polarized array antenna 2, the horizontally polarized array antenna 1 and the vertically polarized array antenna 2 share the same antenna radiation surface, and the horizontally polarized array antenna 1 is connected to the vertical The polarized array antenna 2 is fixed into an integral structure.

[0020] The horizontally polarized array antenna 1 is composed of M horizontally polarized linear array units 3 arranged in an array, where M is a natural number. The horizontally polarized linear array unit 3 is composed of a waveguide 6, a waveguide feed network 7, a waveguide coaxial conversion 8, and N radiation slots 5, wherein N is a natural number, and the embodiment adopts M as 7 and N as 8, that is, horizontal polarization The array 1 is composed of 7 horizontally polarized linear array units 3 arranged in an array, and each horizontally polariz...

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Abstract

The invention discloses a combined dual-linearly-polarized array antenna, which comprises a horizontal polarized array antenna (1) and a vertical polarized array antenna (2) and is characterized in that the horizontal polarized array antenna (1) and the vertical polarized array antenna (2) use the same aerial radiation port surface; the horizontal polarized array antenna (1) is an array formed byarranging M-numbered horizontal polarized linear array units (3), wherein M is a natural number; the vertical polarized array antenna (2) is an array formed by arranging (M-1)-numbered vertical polarized linear array units (4); and the horizontal polarized linear array units (3) and the vertical polarized linear array units (4) are in a radial arrangement array mode. The antenna device has the advantages that aperture use ratio and antenna efficiency are high and good phased array scan is achieved. The invention is suitable for manufacturing dual-linearly-polarized array antennas in satellitecommunication or other communication systems, especially linear polarized array antennas or phased array antennas which are dual-linear polarization or have an adjustable polarizing angle.

Description

technical field [0001] The invention relates to an antenna technology in the communication field, which is suitable for manufacturing dual-polarized array antennas in satellite communication or other communication systems, and is especially suitable for dual-polarized phased array antennas or linear poles with adjustable polarization angles. array antenna. Background technique [0002] At present, the dual-linear polarized antennas or phased array antennas used in the communication system have the following forms. Although they have their own characteristics in performance, they all have certain deficiencies. [0003] 1. A dual-polarized antenna can be formed by using waveguide slot array antennas in two directions, but the two polarized antennas cannot share the aperture, so the aperture utilization rate is low, and it cannot be used as a phased array antenna. [0004] 2. Using the waveguide wide-side slot antenna and the narrow-side slot antenna may form a dual-polarized ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q13/02H01Q13/20H01Q21/24
Inventor 武伟路志勇梁冀生刘昕宋长宏王焕菊赵楠
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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