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

A technology of lens antenna and ellipsoid, which is applied in the direction of antenna, slot antenna, electrical components, etc., can solve problems such as different coverage areas, achieve the effects of improving stability and impact resistance, reducing loss, and being easy to integrate

Active Publication Date: 2017-11-21
吴锡东
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  • Application Information

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Problems solved by technology

[0004] However, the beam width of the azimuth plane and the elevation plane of the ball lens antenna are the same. If the beam width needs to be adjusted, the two will change at the same time, which cannot meet the needs of achieving different coverages in the azimuth plane and the elevation plane.

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

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Embodiment Construction

[0025] 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 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 adjusting the major and minor axis lengths of the ellipsoid, the beamwidth in azimuth and elevation can be optimized. Similar to the traditional lens antenna, a simple ray tracing method can be used to approximate the optimal feed position. Selected microstrip antennas of the receive feed antenna array are individually gated to switch t...

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Abstract

The invention discloses a planar-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 lens support is a hollow cylindroid and the pedestal is a cylindroid. 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 microstrip antennas. According to the invention, integration of a transmitting antenna and a receiving antenna is achieved; the design freedom is high; the aperture efficiency is high; the side beam is comparatively low; the directionality is good; and the weight is low. The antenna provided by the invention is easy to integrate to a planar circuit.

Description

technical field [0001] The invention relates to an antenna, in particular to a planar feed source transceiver integrated double ellipsoidal 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q13/10H01Q15/02H01Q19/06
Inventor 吴锡东杨帆严海隆
Owner 吴锡东
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