Curved-surface feed source transmitting and receiving integrated double ellipsoid lens antenna

A technology of lens antenna and ellipsoid, applied in the direction of antenna, slot antenna, electrical components, etc., can solve the problems of low beam gain, poor performance, difficulty, etc., achieve low side lobe, reduce performance, and maintain consistency

Active Publication Date: 2017-11-21
ZHEJIANG UNIV
View PDF3 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there is only one focus of the double ellipsoidal lens, and the gain is the highest when the phase center of the feed antenna coincides with the focus of the double ellipsoidal lens, and the existing double ellipsoidal lens antennas have other beam gains that are not at the focus than the

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
  • Curved-surface feed source transmitting and receiving integrated double ellipsoid lens antenna
  • Curved-surface feed source transmitting and receiving integrated double ellipsoid lens antenna
  • Curved-surface feed source transmitting and receiving integrated double ellipsoid lens antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] When the feed is placed on the focus of the double ellipsoid lens, the phase center of the feed coincides with the focus of the double ellipsoid lens, and the electromagnetic wave radiated by the feed antenna becomes a parallel beam through the double ellipsoid lens and radiates out, thus achieve the maximum gain of the antenna. The feed antenna is placed on the curved surface so that the off-focus beam gain is consistent with the center beam while maintaining high gain. The pattern of this double ellipsoidal lens antenna is similar to that of the traditional ball lens antenna, and narrow beams can be realized on the E-plane and H-plane. In addition, the longitudinal dimension of the lens antenna can be adjusted by changing the ratio of the focal length to the lens diameter. By changing the curvature of the curved surface, the radiation performance of the lens antenna can be optimized. By adjusting the major and minor axis lengths of the ellipsoid, the beamwidth in az...

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 discloses a curved-surface feed source transmitting and receiving integrated double ellipsoid lens antenna. The antenna includes a double ellipsoid lens antenna, a lens extension layer, a lens support, a pedestal, receiving feed source antenna arrays and transmitting feed source antenna arrays. The double ellipsoid lens antenna, the lens extension layer and the lens support are all made of medium. The upper surface of the lens extension layer coincides with the lower surface of the lens. The lens support is a hollow cylindroid and the pedestal is a cylindroid. An arc-shaped concave face of the upper surface of the pedestal is provided with the receiving feed source antenna arrays and the transmitting feed source antenna arrays. A one-dimensional scanning or a two-dimensional scanning array is formed according to the distribution way of the receiving feed source antenna arrays and the transmitting feed source antenna arrays. Each of the receiving feed source antenna arrays and the transmitting feed source antenna arrays includes a plurality of waveguide dielectric rod antennas. According to the invention, integration of a transmitting antenna and a receiving antenna is achieved; the design freedom is high; the wave beam consistence is good; the aperture efficiency is high; the side beam is comparatively low; the directionality is good; and the weight is low.

Description

technical field [0001] The invention relates to an antenna, in particular to an arc feed source integrated double ellipsoid lens antenna. Background technique [0002] A series of researches on lens antenna systems have been carried out in the world very early. Traditional lens antennas generally adopt geometric shapes such as planes, spheres, hyperboloids, and parabolas. However, these methods have limited scanning range, large losses, and narrow operating frequency bands, which cannot satisfy requirements of modern mmWave system applications. The research group led by Prof.G.M.Rebeiz of the University of Michigan pioneered the research field of dielectric lenses (D.F.Filipovic, S.S.Gearhart and G.M.Rebeiz, "Double-slot antennas on extended hemispherical and elliptical silicon dielectric lenses," IEEE Trans Microwave Theory Tech. , MTT-41, pp.1738-1749, Oct.1993). In 1994, he proposed a dielectric lens antenna that is especially suitable for working in the millimeter wave...

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): H01Q13/10H01Q15/02H01Q19/06
Inventor 吴锡东严海隆杨帆
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap