Phased array feed phase control circuit, method, device and system

Abstract

The invention discloses a phased array feed phase control circuit, which comprises a phase controller, N first driving modules, N second driving modules and an N * N array consisting of N * N micro heaters; the phase controller is provided with N first pins and N second pins; the N first pins are electrically connected with one ends of the N first driving modules respectively; the other end of thefirst driving module is electrically connected with one end of each of N micro heaters in one column in the heating array assembly; one end of the second driving module is electrically connected withthe other ends of the N micro heaters in one row in the heating array assembly; and N second pins of the phase controller are electrically connected with the other ends of the N second driving modules respectively. According to the scheme, the N first pins and the N second pins are used for achieving heating control over the N * N array composed of the N * N micro heaters in a grouping control mode, the occupied space of the pins corresponding to multiple light paths is reduced, and the scale of an optical phased array chip can be increased.

Description

technical field [0001] The present invention relates to the technical field of phased arrays, in particular to a phased array feed control circuit, method, device and system. Background technique [0002] The scale of optical phased array chips determines the resolution of optical scanning. At present, the mainstream method of large-scale phased array chips is to split light through MMI (multimode multiplexing interferometer). The advantages of using MMI or star splitter are The structure is simple, and it is easy to ensure that the optical distance of each optical path is equal; however, the existing large-scale phased array chip involves multiple optical paths, and multiple optical paths need the same number of control leads or pins to control, so that the optical path of each optical path equal. However, when multiple optical paths are involved in the phased array chip, multiple pins or control leads on the chip occupy the space of other components, making it difficult t...

AI Technical Summary

Problems solved by technology

[0004] The present application provides a phased array feed control circuit, method, device and system, which can reduce the space of other components occupied by multiple pins or control leads on the chip when the phased array chip involves multiple optical paths, Solve the technical problem that the scale of optical phased array chips is difficult to increase

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