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Radiation sensitivity test method of protection power amplifier

A power amplifier and radiation sensitivity technology, applied in the field of electromagnetic induction, can solve problems such as power amplifier damage, and achieve the effect of ensuring smooth progress and effectiveness

Inactive Publication Date: 2009-01-14
BEIHANG UNIV
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  • Abstract
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Problems solved by technology

[0006] 2. Under normal circumstances, directly apply the interference amount according to the sensitivity limit value specified in the standard;
However, this method of protecting the power amplifier by monitoring the initial reflected power belongs to post-event protection, that is, when the power meter monitors the initial reflected power, the initial reflected power has already reached the power amplifier. damage

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  • Radiation sensitivity test method of protection power amplifier

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0035] This method is mainly used in the electromagnetic compatibility radiation sensitivity test test. This implementation method adopts the requirements of the national military standard RS103 test item for the radiation sensitivity test. The test equipment includes:

[0036] RF signal source: RS Company, model SML01;

[0037] Power amplifier: AR Company, model 1000W1000C, test frequency range is 80MHz~1GHz, power amplifier gain is 35dB, maximum allowable reflected power is 500W;

[0038] Antenna: AR company, model is AT400A;

[0039] Dual directional coupler: AR company, model is DC6280, test frequency range is 80MHz~1GHz, coupling coefficient is 60dB;

[0040] Power meter: RS company, model is NRVD, the minimum sensitivity of general power meter is -100dBm;

[0041] Field strength meter: AR company, model FM5004;

[0042] data recording device;

[0043...

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Abstract

The invention provides a radiosensitivity test method used for protecting a power magnifier. The method figures out the limit of the minimal sensitivity through power and also the minimal input power provided by a signal source to guarantee that a standing wave ratio is stable in a wider band limit when the power value which is greater than the minimal input power is input so as to guarantee the effectiveness of the standing wave ratio protecting the power magnifier; the maximal allowable reflection power is adopted to define the maximal input power of the signal source and a standard field intensity value is adopted, so as to define the field intensity stressed to EUT and guarantee that the power magnifier cannot be damaged by an excessive reflection power in the band limit. With the invention, a smooth process of the radiosensitivity test and the safety of the power magnifier can be effectively guaranteed.

Description

technical field [0001] The invention relates to the field of electromagnetic induction, in particular to a radiation sensitivity test method for protecting a power amplifier. Background technique [0002] Electromagnetic compatibility (EMC) is a science that studies the coexistence of various electrical equipment or systems under the conditions of limited space, limited time, and limited spectrum resources without causing performance degradation. The purpose of electromagnetic compatibility research is to neither interfere with adjacent equipment and the environment, nor reduce indicators due to interference from adjacent equipment or environmental influences. With the rapid development of electronic technology, the application of equipment such as integration and miniaturization, especially in complex environments, where multi-purpose and multi-functional equipment and instruments coexist, the requirements for normal work are becoming more and more intense. Therefore, the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 戴飞谢树果张金硕苏东林孔蓉宋振飞
Owner BEIHANG UNIV
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