A wide-angle conformal linear phased array antenna based on fss structure

A phased array antenna and wide-angle technology, applied in the field of linear phased array, can solve the problems of heavy mass and large array volume, and achieve the effects of simple processing, reduced space volume, and improved scanning performance

CN110994197BActive Publication Date: 2021-03-30UNIV OF ELECTRONICS SCI & TECH OF CHINA
5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-03-30

Smart Images

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

Abstract

The invention relates to a wide-angle conformal linear phased array antenna based on an FSS structure, which belongs to the field of wireless communication and the field of radar technology. The antenna unit includes metal floor, common ground, shorting probe, Marchand balun, dipole antenna, conformal frequency selective surface (FSS), director. The antenna is attached to the surface of the structure, the dipole antenna is fed through the balun, the short-circuit probe is placed between the two dipole units, the FSS structure is placed at the front end of the dipole antenna, and the director is placed at the upper end of the structure . The antenna can conform to the surface of the structure, greatly reducing the space occupied by the antenna, and can ensure good radiation characteristics and high directivity. The invention has the advantages of compact structure, simple installation and high conformal characteristics, and can be applied in practice.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of wireless communication technology and radar technology, and in particular relates to a linear phased array for feeding an antenna through a coaxial cable to realize conformal wide-angle scanning. Background technique

[0002] The theory of phased array was first born in the 1930s. Due to the immature development of microwave devices at that time, its development was very slow. It was not until later that computer technology, the development of ferrite and semiconductor materials, and the detection and tracking requirements in the military enabled the rapid development of phased array radar. For example, Lincoln Laboratory has conducted comprehensive and in-depth research on phased array radar; in the mid-term, the ship-borne phased-array radar was successfully developed and installed on the aircraft carrier Enterprise; 85 phased array radar, opened a new era of phased array radar.

[0003] However, most phased ar...

Examples

Embodiment Construction

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the implementation examples.

[0022] figure 2 It is the overall three views of the antenna unit according to the embodiment of the present invention. The antenna is printed on the dielectric board 104. The dielectric board 104 is made of F4BM material with a thickness of 0.25mm and a dielectric constant of 2.2. The rear is a metal floor 105, and the height of the baffle is 0.244λ , there is a frequency-selective surface structure in front of the dielectric plate, which can increase the scanning angle. The patch is attached to the surface of a polyimide film with a thickness of 0.05mm and a dielectric constant of 2.8, which can make the FSS well conformal. Let the antenna have a ...