Unlock instant, AI-driven research and patent intelligence for your innovation.

Beam scanning array antenna having ultralow elevation characteristic

An array antenna and beam scanning technology, which is applied in the field of beam scanning array antennas, can solve the problems of carrier installation conditions and use environment restrictions, and achieve the effects of improving low elevation gain, reducing antenna size, and reducing costs

Inactive Publication Date: 2015-04-01
NORTHWESTERN POLYTECHNICAL UNIV
View PDF7 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the increase in the height of the antenna will cause great restrictions on the installation conditions of the carrier and the use environment

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Beam scanning array antenna having ultralow elevation characteristic
  • Beam scanning array antenna having ultralow elevation characteristic
  • Beam scanning array antenna having ultralow elevation characteristic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Such as figure 1 As shown, the working center frequency is f 0 =5GHz beam scanning array antenna with ultra-low elevation angle characteristics, its overall structure is composed of seven-element microstrip array antenna 1 and metamaterial lens 2 with beam deflection effect, wherein the metamaterial lens 2 with beam deflection effect is composed of The sub-wavelength structural units 3 are stacked and combined in a periodic arrangement. The layers can be combined into one by mechanical connection, welding or bonding.

[0018] figure 2 A schematic diagram of the front and back structures of a sub-wavelength structural unit 3 is shown. The substrate material used is 1 mm thick double-sided copper-clad epoxy glass fiber resin, the dielectric constant is 4.6 mm, and the loss tangent is 0.02. The pattern is made by circuit board etching process, and the shaded part is the reserved copper pour area. The transmission phase and impedance matching of the sub-wavelength stru...

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

PUM

No PUM Login to View More

Abstract

The invention relates to a beam scanning array antenna, in particular to a beam scanning array antenna having an ultralow elevation characteristic. The antenna is formed by an array antenna body and a metamaterial lens, the beams of the array antenna body can be finitely scanned, and the metamaterial lens can achieve the beam deflection effect; when the composite beams radiated from the array antenna body pass through the metamaterial lens, a fixed additional deflection angle theta 0 can be formed, the beam pointing direction is changed along with the array antenna body within a certain angle domain, and an ultralow elevation antenna main beam directional pattern can be formed through secondary beams of the metamaterial lens. The beam scanning array antenna having the ultralow elevation characteristic greatly increases low-elevation gains of planar phased-array antennas, reduces antenna sizes, lowers cost and can be suitable for various installation platforms.

Description

technical field [0001] The invention relates to a beam scanning array antenna, in particular to a beam scanning array antenna with ultra-low elevation angle characteristics. Background technique [0002] With the development of satellite communication technology and the expansion of application fields, the demand for real-time data exchange with satellites in mobile carriers has become more and more urgent. The research on "antenna in motion" technology has become one of the research hotspots in the field of satellite communication technology. In order to ensure the mobility of the mobile carrier, it is required that the mobile communication satellite antenna should have high gain, low noise, low profile, small size and easy concealment, and can realize automatic tracking of the antenna beam to the satellite and maintain normal communication at low elevation angles Features. Therefore, the beam-scannable planar array antenna with relevant characteristics has become an impo...

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

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01Q19/06H01Q15/02H01Q21/00
Inventor 刘亚红周欣黄尧赵晓鹏
Owner NORTHWESTERN POLYTECHNICAL UNIV