A System for Automatically Measuring Polarization Parameters of Polarizer Reflected Waves

Abstract

The invention discloses a system for automatically measuring polarization parameters of a polarizer reflected wave. The system comprises the following parts: a polarizer to be tested is fixed on a first rotating device, and a receiving antenna, a receiving end isolator and a detector are integrally fixed on a second rotating device; the first rotating device is driven by a first stepper motor andthe second rotating device is driven by a second stepper motor; the first stepper motor and the second stepper motor are controlled by a control module; an analog-digital signal conversion module is used for converting voltage signals output by the detector into digital signals, and inputting the digital signals into the control module for processing; and the control module automatically controlsactions of the stepper motors according to a preset program, and automatically records all digital signals output by the analog-digital signal conversion module, so that the polarization parameters ofthe reflected wave of the polarizer to be tested can be automatically measured. The system for automatically measuring the polarization parameters of the polarizer reflected wave provided by the invention has the advantages of being simple and convenient to design, low in development difficulty, high in maintainability, saving manpower and the like.

Description

technical field [0001] The invention belongs to the field of wireless communication, and more specifically relates to a system for automatically measuring the polarization parameters of polarizer reflected waves. Background technique [0002] A polarizer, or polarizer, is an optical filter that allows light of a certain polarization state to pass while blocking light of other polarization states. It can convert a beam of undefined polarization state or mixed polarization state into a beam of well-defined polarization, that is, polarized light. Common types of polarizers are linear polarizers and circular polarizers. Polarizers are used in many optical techniques and instruments. In addition to light, polarizers can also be used for other types of electromagnetic waves, such as radio waves, microwaves, and X-rays, among others. [0003] The design of the polarizer is based on the basic principle of the diffraction grating, etching grooves with periodic structures (rectangu...

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Problems solved by technology

[0008] Aiming at the above defects or improvement needs of the prior art, the present invention provides a system for automatically measuring the polarization parameters of the reflected waves of the polarizer, thereby solving the time-consuming and laborious problems existing in the existing polarizer reflected wave polarization parameter measurement system , limited accuracy and other shortcomings

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