Device and method for measuring microwave beat wave radiation field

Abstract

The invention discloses a measuring device and a method for the microwave beat wave radiation field, comprising a receiving antenna, a transmission attenuator, a power divider, an oscilloscope, and adata terminal. The receiving antenna receives a microwave beat wave signal of the microwave radiation field. The transmission attenuator reduces the power level of the microwave beat wave signal. Thepower divider divides the input microwave beat wave signal into multiple signals, wherein each signal uses a different filter. The power divider keeps the frequency signal to be processed by a channel, and enters the oscilloscope for acquisition and observation directly or after passing through a detector after filtering out other frequency signals. The oscilloscope acquires and observes the filtered signal. The data terminal is connected with the oscilloscope, restores the oscilloscope voltage measuring value to the spatial field strength of a discrete frequency, then performs a synthetic calculation processing, and analyzes and processes the data collected by the oscilloscope using a data processing program. The measuring device has the advantages of strong multi-frequency adaptability,no new beat signal generation, and high measurement accuracy.

Description

technical field [0001] The invention relates to the technical field of microwave measurement, in particular to a microwave beat-wave radiation field measurement device and method, which are suitable for high-precision measurement of the microwave beat-wave signal radiation field. Background technique [0002] Microwaves refer to electromagnetic waves with a frequency between 300MHz and 300GHz and corresponding electrical wavelengths between 1m and 1mm. With the advancement of science and technology, more and more electronic products are widely used, which brings convenience to life, but also makes the electromagnetic environment increasingly complex. Accurate radiation field measurement is used for electromagnetic environment assessment, emission signal detection, and electromagnetic protection. aspect is of great significance. [0003] When the spectrum of the transmitted signal is impure or the electromagnetic environment is complex, signals of multiple frequencies may ex...

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Problems solved by technology

[0006] The present invention mainly solves the problem of low accuracy of conventional measurement methods and systems (antennas, transmission attenuation links, detectors, etc.) when measuring the microwave beat-wave radiation field, and proposes a microwave beat-wave radiation field measurement device and method. The measurement device has the advantages of strong multi-frequency adaptability, no new beat frequency signal, and high measurement accuracy

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