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High-gain multilayer dielectric composite dual-circular-polarization micro-strip array antenna

A multi-layer dielectric and dual circular polarization technology, which is applied to antenna unit combinations with different polarization directions, antennas, antenna supports/mounting devices, etc., can solve the problem of low profile, low efficiency of microstrip antennas, and difficulty in achieving high antenna heights. Efficiency performance and other issues, to achieve the effect of improving caliber efficiency and gain

Inactive Publication Date: 2013-04-03
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The microstrip array antenna is an array antenna with the characteristics of low profile, easy integration, easy conformal shape, and light weight. However, the efficiency of the traditional microstrip antenna is low, so the gain of the patch unit is only 7dB, and it is difficult to achieve high antenna efficiency. performance
The traditional microstrip circularly polarized antenna unit is single-polarized, and it is difficult to integrate two circularly polarized antennas into one array antenna

Method used

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  • High-gain multilayer dielectric composite dual-circular-polarization micro-strip array antenna

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Embodiment

[0041] The structure of the high-gain multi-layer dielectric compound dual circularly polarized microstrip array antenna is as follows: figure 1 and Figure 4 shown. The array antenna consists of an upper dielectric substrate 1, a dielectric pillar 2, a lower dielectric substrate 3, a metal support 4, a 90° bridge circuit 5, a microstrip antenna unit 6 and two sets of feed networks 7 and 8.

[0042]Taking the signal receiving process as the sequence, the structure of the array antenna is as follows: the upper dielectric substrate 1 is placed on the second step 11 of the metal support 4, and the lower dielectric substrate 3 is placed on the first step 10 of the metal support 4, relying on the steps to prop up the two steps. The air cavity between the two dielectric substrates; the dielectric support 2 is placed at an appropriate position between the two dielectric substrates, and is fixed on the front of the metal support 4 with screws, and the auxiliary metal support supports...

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Abstract

The invention relates to a high-gain multilayer dielectric composite dual-circular-polarization micro-strip array antenna, and belongs to the technical field of antennas. The high-gain multilayer dielectric composite dual-circular-polarization micro-strip array antenna comprises nine micro-strip antenna units, two groups of feed networks, a lower-layer dielectric substrate, an upper-layer dielectric substrate, a metal support, dielectric struts and a 90-degree bridge circuit. The high-gain multilayer dielectric composite dual-circular-polarization micro-strip array antenna is based on a micro-strip antenna theory, double layers of the micro-strip antenna units are capable of improving the gain of the antenna by 2dB as compared with the traditional micro-strip antenna units, the two groups of feed networks with equal amplitudes and identical phases are provided with one-dividing-into-two unequal power dividers, one-dividing-into-three equal power dividers and one-dividing-into-six equal power dividers and are reasonably arranged in limited space, and excellent amplitude and phase stability of each feed end is guaranteed; and a left-hand circular polarization mode and a right hand circular polarization mode can be implemented simultaneously, so that right hand circular polarization electromagnetic signals can be transmitted or received while left hand circular polarization electromagnetic signals are transmitted or received.

Description

technical field [0001] The invention relates to a high-gain multi-layer dielectric composite double circularly polarized microstrip array antenna, which belongs to the technical field of antennas. Background technique [0002] With the development of mobile satellite technology and the needs of various communication systems, dual circularly polarized antenna systems have attracted more and more attention. A good dual circularly polarized antenna requires that it can achieve high-gain dual circularly polarized performance in a limited space. [0003] The microstrip array antenna is an array antenna with the characteristics of low profile, easy integration, easy conformal shape, and light weight. However, the efficiency of the traditional microstrip antenna is low, so the gain of the patch unit is only 7dB, and it is difficult to achieve high antenna efficiency. performance. The traditional microstrip circularly polarized antenna unit is single-polarized, and it is difficult...

Claims

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Application Information

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IPC IPC(8): H01Q21/24H01Q1/38H01Q13/08H01Q1/12
Inventor 刘埇司黎明赵鹏飞卢宏达朱思衡倪鸿宾吕昕
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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