Feeding network layer, antenna system, and method for generating four polarization modes thereof

A feed network and antenna system technology, applied in the field of antennas, can solve the problems of four-polarization antenna processing and performance, difficult to meet the actual needs of the market, processing difficulties, etc., to solve the problem of cross polarization deterioration, ingenious design, The effect of excellent performance

Inactive Publication Date: 2017-05-31
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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Problems solved by technology

Only due to the loading of RF switches, the structure is complex, the actual processing is difficult, and the cost is high.
[0004] To sum up, the current four-polarization antenna implementation method is difficult to achieve both processing and performance, and it is difficult to meet the actual needs of the market.

Method used

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  • Feeding network layer, antenna system, and method for generating four polarization modes thereof
  • Feeding network layer, antenna system, and method for generating four polarization modes thereof
  • Feeding network layer, antenna system, and method for generating four polarization modes thereof

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Embodiment

[0038] Such as Figure 1 to Figure 3As shown, an antenna system includes a feed network layer 14, a second dielectric substrate layer 11, a metal ground layer 15, a first dielectric substrate layer 10, and a radiation layer 9 stacked sequentially from bottom to top, and a vertical feed through Network layer 14, second dielectric substrate layer 11, metal ground layer 15, first dielectric substrate layer 10 and radiation layer 9, and electrically connected metal probe 13 of feed network layer 14 and radiation layer 9; metal probe 13 penetrates When passing through the metal formation 15, four second openings 12 that are not electrically connected to the metal probe 13 are formed;

[0039] The radiation layer 9 includes four square metal patches 1 of the same size and a "ten"-shaped metal patch 2; the four square metal patches 1 are respectively placed in four In the quadrant; each side of each square metal patch 1 is parallel to the cross arm and the longitudinal arm of the "t...

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Abstract

The invention discloses a feeding network layer and an antenna system. The feeding network layer comprises two feeding networks in mutual mirror symmetry, and each feeding network comprises a feeding input port, a Wilkinson power divider, a slow-wave line structure, aSchiffman phase shifter, and a branch-line directional coupler. The antenna system comprises the feeding network layer, a second dielectric substrate layer, a metal ground layer, a first dielectric substrate layer, and a radiation layer laminated in sequence from bottom to top. The invention also discloses a method for generating four polarization modes of the antenna system, wherein the four polarization modes comprise left-hand circular polarization, right-hand circular polarization, +45-degree linear polarization, and -45-degree linear polarization. According to the feeding network layer, the antenna system, and the method, the design is ingenious, the structure is simple, the defects of unstable structure and high cost caused by realization of the quadri-polarization antenna through change of the physical direction of an antenna oscillator and loading of a radio frequency switch are overcome, and requirements of simple machining of the antenna and easy integration are guaranteed.

Description

technical field [0001] The invention relates to the field of antennas, in particular to a feeding network layer, an antenna system and a method for generating four polarization modes. Background technique [0002] With the rapid development of modern communication technology and the rise of cognitive radio, MIMO, Internet of Things and other systems, the demand for multifunctional communication in mobile communication and satellite communication systems is increasing. The multi-polarization and polarization selection technologies are widely used in multi-functional communication systems because of their advantages of preventing channel fading, enhancing communication reliability and channel capacity. Therefore, antenna multi-polarization is also a major research hotspot in the field of antennas. [0003] In order to realize the four-polarization of the antenna and then realize the work of the MIMO system, people such as Bi Qi disclose a kind of four-polarization antenna and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q1/52H01Q23/00
CPCH01Q1/38H01Q1/50H01Q1/52H01Q23/00
Inventor 黄发邓辉熊江
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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