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High gain dual-frequency dual circularly polarized common-caliber planar array antenna

A planar array antenna, dual circular polarization technology, applied in the field of satellite antennas, can solve the problems of low polarization isolation and frequency isolation, and achieve the effect of good bandwidth, low profile and good isolation

Active Publication Date: 2017-01-25
中天引控科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, when the two operating frequencies of the existing dual-frequency dual-circularly polarized antennas are close to each other, the polarization isolation and frequency isolation are low

Method used

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  • High gain dual-frequency dual circularly polarized common-caliber planar array antenna
  • High gain dual-frequency dual circularly polarized common-caliber planar array antenna
  • High gain dual-frequency dual circularly polarized common-caliber planar array antenna

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Embodiment Construction

[0038] like figure 1 As shown, the high-gain dual-frequency dual-circularly polarized common-aperture planar array antenna of the present invention includes a radiation array 1, a first frequency power divider 2 and a second frequency power divider 3, the first frequency power divider 2 and The second frequency power divider 3 is connected to the left and right ends of the radiation array 1 respectively.

[0039] like figure 2 shown,

[0040] The radiation array 1 includes an upper metal grounding plate 11, a middle metal grounding plate 12, and a lower metal grounding plate 13. A dielectric substrate 14 is laminated between the upper metal grounding plate 11 and the middle metal grounding plate 12, and the middle metal grounding plate A lower dielectric substrate 15 is laminated between 12 and the lower metal ground plate 13;

[0041] The middle metal ground plate 12 and the lower metal ground plate 13 are connected by a plurality of metal through holes 41 passing through...

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Abstract

The invention discloses a high gain dual-frequency dual circularly polarized common-caliber planar array antenna which comprises a radiation array (1), a first frequency power divider (2) and a second frequency power divider (3), wherein the first frequency power divider (2) and the second frequency power divider (3) are respectively connected with the left end and right end of the radiation array (1). The high gain dual-frequency dual circularly polarized common-caliber planar array antenna has good polarization isolation and high frequency isolation.

Description

technical field [0001] The invention belongs to the technical field of satellite antennas, in particular to a high-gain dual-frequency dual-circular polarization common aperture plane array antenna with good polarization isolation and high frequency isolation. Background technique [0002] The dual-frequency dual-circularly polarized antenna can realize the multi-frequency common aperture of the antenna, so that the uplink and downlink of the portable satellite communication system can work at different frequencies, and the antenna common aperture can be realized on the same plane, which is conducive to the miniaturization and integration of the system. [0003] To reduce transmitter power, the antenna gain needs to be increased. The main ways to improve the antenna gain in the prior art are as follows: [0004] 1. For reflector antennas and air-feed antennas, the method of increasing the diameter of the antenna is adopted. Reflector antennas are relatively bulky, bulky, a...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q21/00H01Q21/24H01Q5/00
CPCH01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q5/00H01Q21/00H01Q21/24
Inventor 汪敏仵娜殷玉凤徐诺王道雨吴文
Owner 中天引控科技股份有限公司
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