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Dual-polarization planar-array satellite-television reception antenna

A dual-polarization antenna and planar array technology, which is applied to antenna unit combinations, antennas, electrical components, etc. with different polarization directions, can solve the problems of user inconvenience, dual-polarization switching cannot also rely on manual rotation, etc., and achieve antenna efficiency. High, good circularly polarized axial ratio characteristics, wide bandwidth effect

Inactive Publication Date: 2013-12-25
ANHUI SUN CREATE ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the polarization matching of the antenna used for fixed reception can be achieved by manual rotation, the switching between dual polarizations cannot also rely on manual rotation, which brings great inconvenience to users

Method used

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  • Dual-polarization planar-array satellite-television reception antenna
  • Dual-polarization planar-array satellite-television reception antenna
  • Dual-polarization planar-array satellite-television reception antenna

Examples

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Embodiment Construction

[0030] Such as figure 1 As shown, a dual-polarized planar array satellite TV receiving antenna includes a dual-polarized antenna and a dual-polarized tuner, and the dual-polarized antenna includes a radiating unit, two rectangular waveguide feeders arranged in a cross shape Electrical port 2, polarized feeding network one 3 and polarized feeding network two 4, the radiating unit is a rectangular radiating horn 1, and the rectangular waveguide feeding port 2 feeds the radiating unit with dual polarization, so The polarization directions of the polarized feeding network one 3 and the polarized feeding network two 4 are perpendicular to each other, and the polarized feeding network one 3 and two 4 are synthesized by E-T structure, and the polarized feeding network one 3 and 2 and 4 are respectively located in the upper and lower planes and the radiation elements are combined into a 2×2 element array antenna, and the polarization feed network 1 3 and 2 4 are located between the ra...

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Abstract

The invention discloses a dual-polarization planar-array satellite-television reception antenna. A polarization direction of a polarization feed network I and a polarization direction of a polarization feed network II are mutually vertical. The polarization feed network I and the polarization feed network II are arranged in an upper plane and a lower plane respectively and combines radiation units into a 2*2 unit array antenna. The polarization feed network I and the polarization feed network II are arranged between the radiation units and the rearmost parts of the polarization feed network I and the polarization feed network II are bent at the back face of the 2*2 unit array antenna. Through compensation, the polarization feed network I and the polarization feed network II are identical in geometry length. Output ports of the polarization feed network I and the polarization feed network II are both arranged on the back face of the 2*2 unit array antenna. The two output ports are corresponding to two input ports of a dual-polarization radio-frequency head and are connected with the two input ports through microstrip lines respectively. The dual-polarization planar-array satellite-television reception antenna has excellent minor lobes and alternative polarization characteristics and comparatively high antenna efficiency and compensated dual-polarization synthetic networks are basically equal in geometry length so that the whole antenna obtains an excellent circular polarization axial ratio characteristic in a bandwidth.

Description

technical field [0001] The invention relates to the technical field of satellite TV reception, in particular to a dual-polarization planar array satellite TV receiving antenna. Background technique [0002] As one of the three transmission methods of TV, satellite TV has been widely used in countries all over the world. Due to historical reasons, different regions adopt different working frequencies and polarization methods. Europe and regions with greater European influence, such as Australia, Africa, the Middle East, and Southeast Asia, all adopt dual-line polarization, while the United States, Russia, and China (Live Star) adopts dual circular polarization. [0003] [0004] Dual polarization is used because the planned spectrum can be fully utilized to transmit more programs with better quality. When using a linearly polarized signal carrier, the matching polarization of different regions on the earth is related to the latitude and longitude and the position of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/24H01Q19/10H01Q1/36
Inventor 胡卫东金秀梅徐涛蔡安娜栾晓虎
Owner ANHUI SUN CREATE ELECTRONICS
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