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Ultra-wideband dual-polarization array antenna unit

An array antenna, dual-polarization technology, which is applied to antenna element combinations, antennas, and antenna couplings with different polarization directions, which can solve problems such as reduced coupling and improved element matching efficiency.

Pending Publication Date: 2022-01-07
中国船舶集团有限公司第七二四研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem of improving unit matching efficiency and reducing coupling degree in dual-polarized ultra-wideband array antennas, the present invention designs an ultra-wideband dual-polarized unit antenna

Method used

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  • Ultra-wideband dual-polarization array antenna unit
  • Ultra-wideband dual-polarization array antenna unit
  • Ultra-wideband dual-polarization array antenna unit

Examples

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Embodiment Construction

[0024] Example embodiment of the present invention is provided in S ~ C-band frequency range, the relative bandwidth remains above 100%.

[0025] Refer figure 1 , figure 2 and image 3 An ultra-wideband dual-polarized array antenna elements stacked square lattice structure made according to the present invention, a metal from bottom to top reflecting plate 1, a radio frequency connector 2, the transducer 3 metal, a first layer of a dielectric plate 4, the microstrip line 5, the second layer of the dielectric plate 6, a cross-shaped microstrip strip 7; 5 a first layer of dielectric etching the surface of plate 4 a microstrip line, microstrip cross-shaped strip 7 is etched on the second layer surface of the dielectric plate 6 . Metal vibrator horizontally polarized and vertically polarized 3-1 3-2 metal transducers each disposed perpendicular to the upper-layer metallic reflecting plate 1, and 3-3 through the left and right sides of a metal base fixed to the metal base 3-4 attached t...

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Abstract

The invention relates to an ultra-wideband dual-polarization array antenna unit, and belongs to the field of radar antennas. The invention provides a metal oscillator antenna and an additional structure thereof. A metal base and a radiation arm are combined to form a basic radiation structure of the oscillator antenna, and the two metal oscillator antennas with the same structure and size are orthogonally combined to form a dual-polarization radiation antenna structure. Two dielectric plates are loaded right above the antenna, the size of the first dielectric plate is the same as that of an antenna unit plane grid, and two microstrip lines are etched on the upper part of the first dielectric plate; the second dielectric plate is located at the center of the first dielectric plate and is smaller than the first dielectric plate in size; and a cross-shaped microstrip strip is etched at the upper part of the second dielectric plate, and the second dielectric plate is connected with the lower part of the first dielectric plate in a mode of loading a metalized through hole in the center. The array unit antenna can be used for construction of an ultra-wideband dual-polarization array, and good matching and radiation stability in the ultra-wideband range of the array antenna are effectively realized.

Description

Technical field [0001] The present invention is in the field of radar antennas. Background technique [0002] In the current art phased array radar, the receiving system in order to ensure efficiency of the received signal, usually a dual polarized mode of operation. Meanwhile, since the phased array systems improve miniaturization and weight reduction of the active surface in the form of a tile array type integrated array structure facilitator more compelling. Limited by the size of the device and the platform channel density requirements, the antenna element spacing do not large, generally planar size of a half wavelength of a high frequency. To achieve compact space efficient ultra wideband antenna match having a high degree of difficulty, in the conventional means to achieve ultra-wideband dual polarization properties generally can be done under 100% relative bandwidth VSWR is below 2. But the current radar system antenna matching requirements for increasingly higher efficien...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/52H01Q1/36H01Q21/24H01Q19/10
CPCH01Q1/523H01Q1/36H01Q21/24H01Q19/104
Inventor 温亚庆周熹崔满堂
Owner 中国船舶集团有限公司第七二四研究所
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