Foldable large-spacing ultra-wideband low-profile tight coupling array antenna

A tightly coupled array and ultra-wideband technology, applied in the field of foldable large-pitch ultra-wideband low-profile tightly coupled array antennas, can solve the problems of increasing the profile height of tightly coupled phased array antennas and the difficulty of applying foldable functional loading platforms, etc. Achieve the effect of reducing the number of active channels and reducing costs

Pending Publication Date: 2022-03-04
CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in order to achieve strong capacitive coupling between units, tightly coupled phased array units often adopt interleaving structures, such as interdigitation and overlapping. loading platform
Although the profile height of the tightly coupled phased array antenna is relatively low, it is often still necessary to load a matching layer with a certain height above the aperture, which greatly increases the overall profile height of the tightly coupled phased array antenna

Method used

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  • Foldable large-spacing ultra-wideband low-profile tight coupling array antenna
  • Foldable large-spacing ultra-wideband low-profile tight coupling array antenna
  • Foldable large-spacing ultra-wideband low-profile tight coupling array antenna

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Embodiment Construction

[0031] The technical solutions of the present invention will be described in more detail below in conjunction with the accompanying drawings, and the present invention includes but not limited to the following embodiments.

[0032] as attached Figure 1-3 As shown, the present invention provides a foldable large-pitch ultra-wideband low-profile tightly coupled array antenna, which includes a reflector 4 and multiple dipole antenna units.

[0033] The reflective plate 4 is composed of multiple reflective panels spliced ​​together, and the adjacent reflective panels are connected through the folded structure provided on the lower surface, and the adjacent reflective panels can be bent through the folded structure. Dipole antenna units are arranged on the upper surface of the reflector 4 , and each dipole antenna unit is independent of each other without interlacing structure. The folding structure is set on the edge of the dipole antenna unit, so that the array can be folded 90...

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Abstract

The invention provides a foldable large-spacing ultra-wideband low-profile tight coupling array antenna, which comprises a reflecting plate and a plurality of dipole antenna units, a dipole antenna unit is arranged on the upper surface of the reflecting plate, the dipole antenna unit comprises a grounding fork, a vertical polarization dipole and a horizontal polarization dipole, the vertical polarization dipole and the horizontal polarization dipole are orthogonal, and the vertical polarization dipole and the horizontal polarization dipole are in an L-shaped position relation; the dipole antenna units are mutually independent and have no staggered structure, so that the reflecting plate can be folded along the edges of the dipole antenna units. According to the invention, the number of active channels of the phased-array antenna is reduced by working at a large unit spacing, and the cost is reduced; the dual-polarization ultra-wideband wide-angle scanning electrical property is realized; according to the tight coupling dipole array antenna, the profile height of a dipole antenna unit is extremely low, and the array surface has a folding function.

Description

technical field [0001] The invention relates to the technical field of microwave antennas, in particular to a foldable large-pitch ultra-wideband low-profile tightly coupled array antenna. Background technique [0002] With the rapid development of electronic information technology and the explosive growth of communication capacity, modern electronic systems are increasingly integrated and multi-functional. Using a single or very few arrays to complete the transmission and reception of broadband or relatively discrete signals has become a phased array antenna. future development trend. In addition to the electrical performance requirements of ultra-wideband, many carrier platforms often hope that the phased array antenna has a compact volume and a low profile height due to limited space or for the purpose of stealth. In addition, in order to reduce the number of active channels of the phased array antenna and reduce the cost, it is also an important index in the design of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/08H01Q1/36H01Q1/48H01Q1/50H01Q5/25H01Q21/00
CPCH01Q21/00H01Q1/08H01Q5/25H01Q1/48H01Q1/36H01Q1/50
Inventor 张航宇刘志惠闫泽郭志宏吴鸿超周志鹏
Owner CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
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