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.