Hemispherical lens feed source transmitting-receiving integrated crescent lens antenna

A hemispherical lens and lens antenna technology, applied in antennas, slot antennas, electrical components, etc., can solve problems such as poor performance, difficulty, and low beam gain, and achieve the effects of reduced performance, low side lobes, and increased gain

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

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Problems solved by technology

[0004] However, there is only one focus of the crescent lens, and the gain is the highest when the phase center of the feed antenna coincides with the focus of the crescent lens, and the gain of other beams that are not at the focus of the existing crescent lens antenna is lower than that of the

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  • Hemispherical lens feed source transmitting-receiving integrated crescent lens antenna
  • Hemispherical lens feed source transmitting-receiving integrated crescent lens antenna
  • Hemispherical lens feed source transmitting-receiving integrated crescent lens antenna

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Embodiment Construction

[0028] When the feed is placed on the focal point of the crescent lens, the phase center of the feed coincides with the focal point of the crescent lens, and the electromagnetic waves generated by the radiation of the feed antenna become parallel beams radiated through the crescent lens, thereby realizing the antenna Maximum gain. The hemispherical lens antenna is used as the feed source to make the defocused beam gain consistent with the center beam while maintaining high gain. The pattern of the crescent lens antenna is similar to that of the traditional ball lens antenna, and narrow beams can be realized on the E and H sides. In addition, by changing the ratio of the focal length to the lens diameter, the longitudinal size of the lens antenna can be adjusted. By changing the off-axis amount of the hemispherical lens antenna, the radiation performance of the lens antenna can be optimized. Similar to the traditional lens antenna, a simple ray tracing method can be used to ap...

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Abstract

The invention discloses a hemispherical lens feed source transmitting-receiving integrated crescent lens antenna, which comprises a crescent lens, a lens extension layer, a lens support, a base, a receiving feed source antenna array and a transmitting feed source antenna array, and is characterized in that the crescent lens, the lens extension layer and the lens support are formed by a medium, the lens support is a hollow cylinder, and the base is a cylinder; the upper surface of the base is provided with the receiving feed source antenna array and the transmitting feed source antenna array, a one-dimensional scanning array or a two-dimensional scanning array is formed according to an arrangement mode of the receiving feed source antenna array and the transmitting feed source antenna array, and both the receiving feed source antenna array and the transmitting feed source antenna array comprise a plurality of hemispherical lens antennas. The hemispherical lens feed source transmitting-receiving integrated crescent lens antenna integrates a transmitting antenna and a receiving antenna, and is good in beam consistency, high in aperture efficiency, low in sidelobe, good in directivity, light in weight, easy to be integrated with a planar circuit and small in overall longitudinal dimension.

Description

Technical field [0001] The invention relates to an antenna, in particular to a hemispherical lens feed source transceiver integrated crescent lens antenna. Background technique [0002] A series of researches on lens antenna systems have been carried out in the world for a long time. Traditional lens antennas generally adopt geometric shapes such as plane, spherical, hyperboloid, paraboloid, etc. However, these methods have limited scanning range, large loss, and narrow working frequency band, which cannot meet the requirements. Requirements of modern millimeter wave system applications. The research group led by Prof. GM Rebeiz of the University of Michigan pioneered the research field of dielectric lenses (DFFilipovic, SSGearhart and GMRebeiz, "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 particularly suitab...

Claims

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Application Information

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IPC IPC(8): H01Q13/10H01Q15/02H01Q19/06
Inventor 吴锡东杨帆严海隆
Owner 吴锡东
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