a microwave camera

Abstract

The invention discloses a microwave camera which comprises a shielding box. An opening is formed in the front end face of the shielding box. A microwave focusing lens is fixed into the opening. A receiving antenna array is arranged on the portion, located on the focal plane of the microwave focusing lens, in the shielding box. The output end of the receiving antenna array is connected with a microwave image display device. An aperture is arranged in front of or behind the microwave focusing lens and connected with an aperture control mechanism. The aperture control mechanism is arranged on the shielding box. A shutter is used for controlling the aperture through the aperture control mechanism. According to the microwave camera, microwave irradiation targets can be actively transmitted for achieving microwave imaging, other microwave interference sources can also be utilized as microwave sources for achieving microwave imaging, the stronger surrounding microwave signals are, the better the imaging effect is, even if an opponent uses an electromagnetic bomb, microwaves emitted by the electromagnetic bomb can also serve as the microwave sources, and become the microwave sources, the microwave signals are stronger, the imaging effect is better, and the imaging ability is improved.

Description

technical field [0001] The invention belongs to an area array image signal acquisition device, in particular to a microwave camera. Background technique [0002] At present, digital cameras use photosensitive electronic array elements, which are visible light image acquisition systems. The image signal acquisition device mainly uses visible light optical systems, which cannot collect microwave signals. The focusing system cannot use ordinary optical devices to complete imaging. For the existing radar system, in order to obtain information such as the position and direction of the target, the active phased array radar antenna is generally used to receive signals. The active phased array radar uses electronically controlled scanning to obtain surrounding target information. The control array radar antenna receives the microwave signal and adopts the scanning method to collect the signal. It needs to transmit and receive the radar signal point by point. The device is susceptib...

AI Technical Summary

Problems solved by technology

[0002] At present, digital cameras use photosensitive electronic array elements, which are visible light image acquisition systems. The image signal acquisition device mainly uses visible light optical systems, which cannot collect microwave signals. The focusing system cannot use ordinary optical devices to complete imaging.

For the existing radar system, in order to obtain information such as the position and direction of the target, the active phased array radar antenna is generally used to receive signals. The active phased array radar uses electronically controlled scanning to obtain surrounding target information. The control array radar antenna receives the microwave signal and adopts the scanning method to collect the signal. It needs to transmit and receive the radar signal point by point. The device is susceptible to interference from high-energy electromagnetic waves and has low imaging capabilities

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