Millimeter-wave quasi-optical integrated dielectric lens antenna and array thereof

A technology of dielectric lens antenna and dielectric lens, which is applied in the direction of antenna array, antenna, electrical components, etc., can solve the problems of slow scanning speed of mechanical transmission, high price, small structure size of horn antenna, etc., and achieve strong dustproof and anti-pollution performance, Structural mechanical properties are strong and the effect of low mass production cost
CN101662076BInactive Publication Date: 2012-11-28้˜ฎๆ ‘ๆˆ
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
้˜ฎๆ ‘ๆˆ
Publication Date
2012-11-28
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention relates to the technical field of radar, in particular to a millimeter-wave quasi-optical integrated dielectric lens antenna and an array thereof. The array consists of a microstrip integrated antenna, a dielectric lens, an objective lens, an array base, a reflecting mirror, a protective cover and a beam transfer switch; one end face of the dielectric lens is a hemisphere or an ellipsoid, while the other end face is a cylindrical section; the microstrip integrated antenna is generated by an dielectric substrate, the front surface of the dielectric substrate is closely adhered tothe cylindrical section of the dielectric lens and serves as a feed source, and the back surface is grounded; the hemispherical or ellipsoidal end face of the dielectric lens is an antenna radiating surface; the length of the cylindrical part of the dielectric lens can be changed; the antenna array is arranged into a linear array or an area array; the array base and the reflecting mirror have conical quasi-optical reflecting mirror surfaces; the focus of the objective lens of the linear array or the area array aligns with the central line of the dielectric lens; the protective cover is arranged outside; and the antenna array is controlled by the beam transfer switch. The antenna structure has strong shock resistance and dust prevention, and is suitable for millimeter-wave radars for planes, automobiles and ships, and receiving / emitting sensing of communication equipment.
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Description

Technical field

[0001] The invention relates to the technical field of communication and radar antennas, in particular to a millimeter wave quasi-optical integrated dielectric lens antenna and its array. Background technique

[0002] Millimeter wave communication and radar antennas are commonly used in horn radiation antennas, parabolic reflective Cassegrain antennas, microstrip antennas and other types. The structure of millimeter wave high-end frequency band horn antennas is relatively small, difficult to manufacture and expensive. Moreover, the parabolic reflective Kag antenna with feeder tracks the maneuvering target, the mechanical transmission scan speed is slow, the accuracy is poor, and the failure rate is high in harsh environments, such as the dusty environment of the anti-collision radar equipped in the car, strong vibration, and large temperature difference , The antenna sensor is required to be highly adaptable to the environment, just like the โ€œeyesโ€ must see clearl...

Claims

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