Numerically controlled automatic microwave imaging lens

Abstract

The invention discloses a numerically controlled automatic microwave imaging lens comprising a first sagittal biconvex lens, a first plano-convex lens, a first convex-concave lens, a second convex-concave lens, a second plano-convex lens, a second sagittal biconvex lens and a precision displacement control system. The first sagittal biconvex lens is used for realizing microwave converging. The first plano-convex lens, the first convex-concave lens, and the second convex-concave lens work jointly to adjust the field curvature and realize zooming. The second plano-convex lens is configured to realize focusing of an imaging lens at an observation position. The second sagittal biconvex lens is used for secondary microwave converging. The precise displacement control system is configured to control the observation range and observation position of the imaging lens. According to the invention, all lens locations are located and controlled precisely by controlling the precise electric movingplatform remotely; the observation position and the observation range of the imaging lens are controllable; different measurement requirements can be met; and the imaging lens is suitable for a complicated measurement environment that is difficult to approach.

Description

technical field [0001] The invention belongs to the technical field of microwave measurement, and more specifically relates to a numerically controlled automatic microwave imaging lens. Background technique [0002] Microwave refers to electromagnetic waves with a wavelength between 1mm and 1m and a frequency in the range of 300MHz to 300GHz. Microwave has wave-particle duality, satisfies the optical principle, and propagates in a straight line. Its basic properties are mainly penetration, reflection and absorption. Microwave’s light-like, penetrating, non-ionizing, and informative properties make microwave systems not only used in military fields such as public security detection and radar identification of friend or foe, but also widely used in environmental detection, intelligent driving, medical instruments, fields of scientific research. [0003] The passive microwave imaging system receives the microwave radiated by the object through an antenna array, and obtains th...

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Problems solved by technology

[0006] Aiming at the defects of the prior art, the purpose of the present invention is to provide a digitally controlled automatic microwave imaging lens, which aims to solve the problem that the existing microwave imaging system cannot change the focal length, the imaging position and range are not flexible, and cannot meet different imaging requirements in complex environments. question

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