Wideband low sidelobe lens antenna based on novel artificial electromagnetic material

An artificial electromagnetic material, lens antenna technology, applied in the direction of antenna, electrical components, radiating element structure, etc., can solve the problems of limiting the aperture efficiency of the lens antenna, high requirements on the shape processing technology, and large volume of the lens antenna, which is convenient for promotion. , create simple, wide-ranging effects
CN103337710BActive Publication Date: 2015-07-15SOUTHEAST UNIV
5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHEAST UNIV
Publication Date
2015-07-15

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a wideband low sidelobe lens antenna based on novel artificial electromagnetic material. The antenna comprises a lens body with an axis in a same straight line, an impedance matching layer, and a feed source. A refractive index of the lens body shows gradient distribution along a radial direction, and a refractive index of the impedance matching layer shows uniform distribution along s axial direction. The lens body and the impedance matching layer are made from the novel artificial electromagnetic material. The new artificial electromagnetic material consists of basic units of periodic arrangements. In the invention, the wideband low sidelobe lens antenna based on the novel artificial electromagnetic material realizes, for a first time, simultaneously regulating an aperture field amplitude and phase distribution in a microwave band; a bandwidth of the lens antenna is quite wide; dispersion in a Ku band is not clear, and the performance is stable; the production is simple; the technology is mature; the price is not high; the promotion is easy; and structural parameters can be scaled to be suitable for different wave bands such as the microwave, millimeter wave and terahertz wave.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a wide-band low-side lobe lens antenna based on a new type of artificial electromagnetic material, in particular to a lens antenna that can be designed according to the amplitude and phase requirements of the oral surface field, and belongs to communication and antenna technology. Background technique

[0002] In microwave and millimeter wave engineering, lens antenna has the advantages of small side lobe and back lobe level and good directivity, so it has been widely used in aviation, aerospace, satellite communication, mobile satellite communication system and other fields. The lens antenna actually uses the imaging principle of the lens to convert the spherical wave emitted by the feed source into a plane wave. There are two ways to realize the traditional lens antenna, that is, by designing the shape of the lens antenna and designing the refractive index of the constituent materials to change the optical path of electromagn...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More