Antenna radiation-scattering integrated microstrip array antenna

A technology of microstrip array and radiation scattering, which is applied in the field of microstrip array antenna and microstrip array antenna based on the integration of radiation and scattering, can solve problems such as complex antenna structure, achieve good scattering characteristics, good radiation performance, and avoid complex structure Effect

Active Publication Date: 2019-02-22
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The array antenna has the characteristics of stable radiation characteristics and low radar cross-section, but the multiple complementary split resonant rings on the metal floor make the structure of the entire array antenna more complicated

Method used

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  • Antenna radiation-scattering integrated microstrip array antenna
  • Antenna radiation-scattering integrated microstrip array antenna
  • Antenna radiation-scattering integrated microstrip array antenna

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing and specific embodiment, the present invention is described in further detail:

[0020] refer to figure 1 , the present invention includes a dielectric substrate 1, the lower surface of the dielectric substrate 1 is printed with a metal floor 2, and the upper surface is printed with N first radiation patches 3 and N second radiation patches periodically arranged 4 patch arrays. Theoretically, when N≥2, the antenna can guarantee good radiation characteristics and scattering characteristics. The embodiment of the present invention only takes N=8. In order to make the array antenna of this embodiment have a symmetrical radiation pattern in the XOZ plane, the radiation patch Should be arranged symmetrically about the Y axis, the eight first radiating patches 3 and eight second radiating patches 4 in this embodiment are respectively arranged in four pairs symmetrical about the Y axis, and four pairs of first radiating patches 3...

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Abstract

The invention provides an antenna radiation-scattering integrated microstrip array antenna, and aims to simplify the structure of an array antenna while ensuring a good radiation characteristic and agood scattering characteristic. The microstrip array antenna comprises a dielectric substrate (1), a metal ground (2) printed on the lower surface of the dielectric substrate (1), and equal numbers offirst radiation patches (3) and second radiation patches (4) printed on the upper surface of the dielectric substrate (1). Annular slits (31) having openings are etched on the first radiation patches. The first radiation patches (3) are connected to a first coaxial line (5) penetrating through the dielectric substrate (1). A metal microstrip (7) connected to a second coaxial line (6) is embeddedin the dielectric substrate under the second radiation patches (4). Equal numbers of first slits (21) and second slits (22) are etched on the metal ground (2).

Description

technical field [0001] The invention belongs to the technical field of antennas, and relates to a microstrip array antenna, in particular to a microstrip array antenna integrated based on radiation scattering. Background technique [0002] In the field of communication, the signal transmitting and receiving system is one of the most important components of the entire communication platform, the antenna is the core part of the system, and the radiation characteristics are the main indicators to measure the quality of the antenna. The key to improving the scattering characteristics is how to reduce the radar cross section, and the radar cross section is the most basic parameter in the scattering characteristics. It refers to a measure of the return power of a target in a given direction under the illumination of a plane wave. [0003] The antenna is a special kind of scatterer. Its scattering includes two parts: one part is the scattering field of the structural mode item that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/00H01Q21/06H01Q21/08H01Q1/38H01Q1/48H01Q1/50
CPCH01Q1/38H01Q1/48H01Q1/50H01Q21/00H01Q21/065H01Q21/08
Inventor 贾永涛朱亮刘英
Owner XIDIAN UNIV
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