Phased-array antenna equipment, wide-angle impedance matching device thereof and phased-array antenna system

A phased array antenna, impedance matching technology, applied in the direction of antenna array, antenna, radiating element structure, etc., can solve problems such as unfavorable antenna miniaturization, increase antenna depth, etc., to expand frequency band and scanning range, expand scanning range, Improve the effect of sweep gain

Inactive Publication Date: 2015-02-25
KUANG CHI INNOVATIVE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, increasing the antenna depth is not conducive to antenna miniaturization

Method used

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  • Phased-array antenna equipment, wide-angle impedance matching device thereof and phased-array antenna system
  • Phased-array antenna equipment, wide-angle impedance matching device thereof and phased-array antenna system
  • Phased-array antenna equipment, wide-angle impedance matching device thereof and phased-array antenna system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0106] The phased array antenna equipment without wide-angle impedance matching device and the phased array antenna equipment with wide-angle impedance matching device are compared and tested. Specifically, FIG. 4( a ) shows a graph of the relationship between the E-plane scanning standing wave ratio and the scanning angle of a phased array antenna device without a wide-angle impedance matching device. FIG. 4( b ) shows a graph of the relationship between the H-plane scanning standing wave ratio and the scanning angle of the phased array antenna device without a wide-angle impedance matching device. Fig. 5(a) shows a graph of the relationship between the E-plane scanning standing wave ratio and the scanning angle of the phased array antenna device provided with the wide-angle impedance matching device. Fig. 5(b) shows a graph of the relationship between the H-plane scanning standing wave ratio and the scanning angle of the phased array antenna device provided with the wide-ang...

Embodiment 2

[0129] Two rectangular slots 14 are respectively symmetrically opened on the upper ends of the two conductive layers of the antenna device. The length of the rectangular slots is LS=12mm, and the distance between the boundaries of the rectangular slots is LD=0.5mm. Change the width LW of the rectangular slots, that is, the width LW of the rectangular slots respectively 0.15mm, 0.2mm, 0.5mm, 1.4mm and 2mm, and antenna devices with various rectangular slot widths LW were compared with antenna devices without rectangular slots (ie, LS=0mm, LW=0mm). When the antenna device forms an array in a specific way, use the CST software (available from Germany CST company) to simulate the periodic boundary conditions, and the active reflection coefficient when the E plane is scanned at 60 degrees is shown in Fig. 7(a). The positions of total reflection frequency points A and B. The total reflection frequency point A basically does not change with the width of the rectangular slot, and the t...

Embodiment 2

[0132] Two rectangular slots 14 are respectively symmetrically opened on the upper ends of the two conductive layers of the antenna device, the width of the rectangular slot is LW=0.8mm, the distance between the borders of the rectangular slot is LD=0.5mm, and the length LS of the rectangular slot is changed, that is, the length of the rectangular slot LS 10 mm, 12 mm and 14 mm, respectively, and antenna arrangements with various rectangular slot lengths LS were compared with antenna arrangements without rectangular slots (ie, LS = 0 mm, LW = 0 mm). When the antenna device forms an array in a specific way, the periodic boundary condition simulation of the CST software is used, and the active reflection coefficient is shown in Figure 7(b) when the E plane is scanned at 60 degrees, and the two total reflection frequency points A and B are observed Location. The total reflection frequency point A basically does not change with the length of the rectangular slot, and the total ref...

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Abstract

The invention relates to phased-array antenna equipment, a wide-angle impedance matching device of the phased-array antenna equipment and a phased-array antenna system. The phased-array antenna equipment comprises an antenna device array and the wide-angle impedance matching device arranged above the antenna device array. The wide-angle impedance matching device comprises a first substrate, a plurality of horizontal conductive geometrical structures and a plurality of vertical conductive geometrical structures. The horizontal conductive geometrical structures are horizontally arranged on one surface of the first substrate, the vertical conductive geometrical structures are arranged above or below the horizontal conductive geometrical structures and are arrayed to be perpendicular to the first substrate roughly. The phased-array antenna equipment and the wide-angle impedance matching device of the phased-array antenna equipment have the following advantages that the influence of scanning blind points on a required frequency band is reduced, wide-band and wide-angle phased array scanning impedance matching is achieved, hence, the wide-angle scanning gain is improved, the scanning coverage is expanded, and the antenna scanning performance is improved.

Description

technical field [0001] The invention relates to a phased array antenna device, a wide-angle impedance matching device for the phased array antenna device, and a phased array antenna system. Background technique [0002] Due to its unique features such as fast beam scanning and beam forming, phased array radar has become the main trend of radar development. Antenna design for phased array radars is also an important area. The development of modern radar requires that the working bandwidth of the antenna is wide enough, the scanning range is large, and the standing wave should be small. Airborne phased array radars generally use Vivaldi type broadband antennas and use triangular arrays. The antenna has several types of scanning blind spots. As the scanning angle of the antenna increases, the blind spots move inward, thereby affecting the bandwidth and scanning performance. [0003] In order to solve the above problems, that is, in order to reduce the impact of scanning blin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q3/30H01Q21/00
Inventor 不公告发明人
Owner KUANG CHI INNOVATIVE TECH
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